wikitags: totals

abs rel
Human activities 429 73.3%
Transport 403 68.9%
Economy 395 67.5%
Technology 294 50.3%
Infrastructure 266 45.5%
Sustainability 266 45.5%
Public transport 256 43.8%
Car 199 34.0%
Road 189 32.3%
Greenhouse gas 184 31.5%
Air pollution 172 29.4%
Innovation 171 29.2%
Electric vehicle 167 28.5%
Economic growth 166 28.4%
Energy 166 28.4%
Efficient energy use 164 28.0%
Renewable energy 163 27.9%
Low-carbon economy 158 27.0%
Rail transport 157 26.8%
Tax 157 26.8%
Traffic 157 26.8%
Electrical grid 146 25.0%
Market (economics) 145 24.8%
Vehicle 136 23.2%
Self-driving car 130 22.2%
Traffic congestion 130 22.2%
Climate change mitigation 121 20.7%
Nature 121 20.7%
Economics 117 20.0%
Fuel 116 19.8%
Land transport 113 19.3%
Employment 103 17.6%
Natural gas 100 17.1%
Service industries 96 16.4%
Energy development 95 16.2%
Risk 93 15.9%
Electricity 92 15.7%
Highway 90 15.4%
Electricity generation 87 14.9%
Charging station 86 14.7%
Electric power transmission 86 14.7%
Pollution 86 14.7%
Bus 84 14.4%
Sustainable transport 83 14.2%
Automation 82 14.0%
Wind power 82 14.0%
Climate change 81 13.8%
Policy 80 13.7%
Construction 79 13.5%
Subsidy 79 13.5%
Business 78 13.3%
Fuel economy in automobiles 78 13.3%
Parking 75 12.8%
Photovoltaics 73 12.5%
Solar power 73 12.5%
Transportation engineering 70 12.0%
Demand 69 11.8%
Electric power 69 11.8%
Logistics 69 11.8%
Plug-in hybrid 69 11.8%
Cycling 68 11.6%
Poverty 68 11.6%
Distributed generation 66 11.3%
Finance 66 11.3%
Road traffic safety 66 11.3%
Engine 65 11.1%
Cargo 64 10.9%
Research 64 10.9%
Pedestrian 63 10.8%
Truck 63 10.8%
Hybrid vehicle 62 10.6%
Train 62 10.6%
Battery electric vehicle 61 10.4%
Gross domestic product 61 10.4%
Road transport 61 10.4%
Electric battery 60 10.3%
Economic development 59 10.1%
Investment 58 9.9%
Hybrid electric vehicle 57 9.7%
Cycling infrastructure 56 9.6%
Accessibility 55 9.4%
Smart grid 54 9.2%
Supply chain 54 9.2%
Sustainable energy 54 9.2%
Street 53 9.1%
Climate resilience 52 8.9%
Fossil fuel 52 8.9%
World energy consumption 52 8.9%
Petroleum 51 8.7%
Artificial objects 49 8.4%
Governance 49 8.4%
Biofuel 48 8.2%
Coal 48 8.2%
Electrical engineering 48 8.2%
Fuel efficiency 47 8.0%
Gasoline 47 8.0%
Health 47 8.0%
Power (physics) 47 8.0%
Power station 47 8.0%
Road pricing 47 8.0%
Electric car 46 7.9%
Energy storage 46 7.9%
Demand response 45 7.7%
Physical quantities 45 7.7%
Competition 44 7.5%
Particulates 44 7.5%
Price 44 7.5%
Liquefied natural gas 43 7.4%
Urban planning 43 7.4%
Zero-emissions vehicle 43 7.4%
Carbon dioxide 42 7.2%
Energy industry 42 7.2%
Externality 42 7.2%
Life-cycle assessment 42 7.2%
Pricing 42 7.2%
Solar energy 42 7.2%
Commuting 41 7.0%
Traffic collision 41 7.0%
Productivity 40 6.8%
Reliability engineering 40 6.8%
Retail 40 6.8%
Computer security 39 6.7%
Controlled-access highway 39 6.7%
Labour economics 39 6.7%
Manufacturing 39 6.7%
Simulation 39 6.7%
Vehicles 39 6.7%
Vehicular automation 39 6.7%
Bicycle 38 6.5%
Evaluation 38 6.5%
Interest 38 6.5%
Public–private partnership 38 6.5%
Rapid transit 38 6.5%
Affordable housing 37 6.3%
Bicycle-sharing system 37 6.3%
Hydroelectricity 37 6.3%
Internet of things 37 6.3%
Services (economics) 37 6.3%
Emissions trading 36 6.2%
Global warming 36 6.2%
Photovoltaic system 36 6.2%
Airport 35 6.0%
Artificial intelligence 35 6.0%
Competition (companies) 35 6.0%
Cost–benefit analysis 35 6.0%
Fuel cell vehicle 35 6.0%
Greenhouse gas emissions 35 6.0%
Grid energy storage 34 5.8%
Intelligent transportation system 34 5.8%
Investor 34 5.8%
Mode of transport 34 5.8%
Nuclear power 34 5.8%
Safety 34 5.8%
Compressed natural gas 33 5.6%
Electric power distribution 33 5.6%
Exhaust gas 33 5.6%
Plug-in electric vehicle 33 5.6%
Sustainable development 33 5.6%
Toll road 33 5.6%
Transport infrastructure 33 5.6%
Computer network 32 5.5%
Port 32 5.5%
Sustainable Development Goals 32 5.5%
System 32 5.5%
Bank 31 5.3%
Debt 31 5.3%
Rail freight transport 31 5.3%
Resource 31 5.3%
Smart meter 31 5.3%
Transportation planning 31 5.3%
Walkability 31 5.3%
Ancillary services (electric power) 30 5.1%
Carbon tax 30 5.1%
Diesel engine 30 5.1%
Sustainable technologies 30 5.1%
Loan 29 5.0%
Carbon price 28 4.8%
Carsharing 28 4.8%
Complete streets 28 4.8%
Electricity pricing 28 4.8%
Road infrastructure 28 4.8%
Bus rapid transit 27 4.6%
Rush hour 27 4.6%
Sidewalk 27 4.6%
Vehicle-to-grid 27 4.6%
Zoning 27 4.6%
Credit 26 4.4%
Emission intensity 26 4.4%
Inflation 26 4.4%
Insurance 26 4.4%
Vehicle emission standard 26 4.4%
Carbon neutrality 25 4.3%
Carpool 25 4.3%
Congestion pricing 25 4.3%
Electrification 25 4.3%
Energy conservation 25 4.3%
Intermodal passenger transport 25 4.3%
Profit (economics) 25 4.3%
Recycling 25 4.3%
Best practice 24 4.1%
Emission standard 24 4.1%
Fee 24 4.1%
Forecasting 24 4.1%
High-occupancy vehicle lane 24 4.1%
Incentive 24 4.1%
Internal combustion engine 24 4.1%
Paris Agreement 24 4.1%
Trail 24 4.1%
Agriculture 23 3.9%
Carbon capture and storage 23 3.9%
City 23 3.9%
Education 23 3.9%
Fuel cell 23 3.9%
Globalization 23 3.9%
Goal 23 3.9%
Intersection (road) 23 3.9%
Pedestrian crossing 23 3.9%
Urban sprawl 23 3.9%
Variable renewable energy 23 3.9%
Competition (economics) 22 3.8%
Energy production 22 3.8%
Energy security 22 3.8%
Interchange (road) 22 3.8%
Interoperability 22 3.8%
Kilowatt-hour 22 3.8%
Mobility as a service 22 3.8%
Power outage 22 3.8%
Regulatory compliance 22 3.8%
Smart city 22 3.8%
Urbanization 22 3.8%
Bond (finance) 21 3.6%
Corporate average fuel economy 21 3.6%
Electromagnetism 21 3.6%
Flood 21 3.6%
Fund accounting 21 3.6%
Low-carbon fuel standard 21 3.6%
Regional transmission organization (North America) 21 3.6%
Water 21 3.6%
Active mobility 20 3.4%
Airline 20 3.4%
Clean Air Act (United States) 20 3.4%
Economic inequality 20 3.4%
Economics of climate change mitigation 20 3.4%
Expense 20 3.4%
Income 20 3.4%
Metropolitan planning organization 20 3.4%
Natural environment 20 3.4%
Option (finance) 20 3.4%
Risk management 20 3.4%
Tariff 20 3.4%
Watt 20 3.4%
Alternative fuel 19 3.2%
Carbon pricing in Australia 19 3.2%
Electrical substation 19 3.2%
Energy demand management 19 3.2%
Light rail 19 3.2%
Macroeconomics 19 3.2%
Mathematical optimization 19 3.2%
Shared mobility 19 3.2%
Ship 19 3.2%
Stormwater 19 3.2%
Suburb 19 3.2%
Curb 18 3.1%
European emission standards 18 3.1%
Kilowatt hour 18 3.1%
Park 18 3.1%
Speed limit 18 3.1%
Statistics 18 3.1%
Traffic flow 18 3.1%
Battery charger 17 2.9%
Business model 17 2.9%
COVID-19 pandemic 17 2.9%
European Green Deal 17 2.9%
Fossil fuel power station 17 2.9%
Mining 17 2.9%
Monopoly 17 2.9%
Net metering 17 2.9%
Price of oil 17 2.9%
Research and development 17 2.9%
Taxicab 17 2.9%
Trade 17 2.9%
Truck driver 17 2.9%
Unemployment 17 2.9%
United States Code 17 2.9%
Community 16 2.7%
Consumer price index 16 2.7%
Cost 16 2.7%
Energiewende 16 2.7%
Fuel tax 16 2.7%
Heating, ventilation, and air conditioning 16 2.7%
Lane 16 2.7%
Liquefied petroleum gas 16 2.7%
Recession 16 2.7%
Ridesharing company 16 2.7%
Rooftop photovoltaic power station 16 2.7%
U.S. state 16 2.7%
Carbon footprint 15 2.6%
Combustion 15 2.6%
Diesel fuel 15 2.6%
European Union Emission Trading Scheme 15 2.6%
Government incentives for plug-in electric vehicles 15 2.6%
Microgrid 15 2.6%
Money 15 2.6%
Performance indicator 15 2.6%
Public transport bus service 15 2.6%
Rebound effect (conservation) 15 2.6%
Revenue 15 2.6%
Road surface 15 2.6%
Shared transport 15 2.6%
Traffic light 15 2.6%
Trans-European Transport Network 15 2.6%
Unmanned aerial vehicle 15 2.6%
Utility 15 2.6%
Wealth 15 2.6%
Welfare 15 2.6%
Analytics 14 2.4%
Biodiesel 14 2.4%
California Environmental Quality Act 14 2.4%
Containerization 14 2.4%
Cost of electricity by source 14 2.4%
Economic equilibrium 14 2.4%
Entrepreneurship 14 2.4%
Environmental policy 14 2.4%
Green infrastructure 14 2.4%
Hydrogen 14 2.4%
Information 14 2.4%
Microeconomics 14 2.4%
NOx 14 2.4%
Net present value 14 2.4%
Peak demand 14 2.4%
Power inverter 14 2.4%
Price elasticity of demand 14 2.4%
Public health 14 2.4%
Public utility 14 2.4%
Regression analysis 14 2.4%
United Nations Framework Convention on Climate Change 14 2.4%
Automotive industry 13 2.2%
Biomass 13 2.2%
Built environment 13 2.2%
Civil engineering 13 2.2%
Cogeneration 13 2.2%
Collision avoidance system 13 2.2%
Concentrated solar power 13 2.2%
Environmental impact assessment 13 2.2%
Equity (finance) 13 2.2%
Government budget balance 13 2.2%
Green vehicle 13 2.2%
Hydrogen vehicle 13 2.2%
Intermodal freight transport 13 2.2%
Motor vehicle 13 2.2%
Motorcycle 13 2.2%
Motorized scooter 13 2.2%
Standardization 13 2.2%
Transit-oriented development 13 2.2%
Behavior 12 2.1%
Biogas 12 2.1%
Delivery (commerce) 12 2.1%
Driving under the influence 12 2.1%
Elasticity (economics) 12 2.1%
Energy policy of the United States 12 2.1%
Energy technology 12 2.1%
Environmental justice 12 2.1%
Environmental, social and corporate governance 12 2.1%
High-speed rail 12 2.1%
Industry 12 2.1%
Infill 12 2.1%
Levelized cost of energy 12 2.1%
License 12 2.1%
Managed lane 12 2.1%
Maritime transport 12 2.1%
Market liquidity 12 2.1%
Mixed-use development 12 2.1%
Natural resource 12 2.1%
Paratransit 12 2.1%
Regulation 12 2.1%
Sea 12 2.1%
Telecommuting 12 2.1%
Tourism 12 2.1%
Workforce 12 2.1%
Auction 11 1.9%
Capacity factor 11 1.9%
Climate change adaptation 11 1.9%
Comprehensive planning 11 1.9%
Consumption (economics) 11 1.9%
Developing country 11 1.9%
Electric generator 11 1.9%
Emergency management 11 1.9%
Euro 11 1.9%
Market failure 11 1.9%
Offshore wind power 11 1.9%
Positive train control 11 1.9%
Rechargeable battery 11 1.9%
Sensitivity analysis 11 1.9%
Transportation demand management 11 1.9%
Vehicle technology 11 1.9%
Waste 11 1.9%
Appropriations bill (United States) 10 1.7%
Architecture 10 1.7%
Biodiversity 10 1.7%
Blockchain 10 1.7%
Chicago Metropolitan Agency for Planning 10 1.7%
Combined cycle power plant 10 1.7%
Culture 10 1.7%
Cyberwarfare 10 1.7%
Disruptive innovation 10 1.7%
E-commerce 10 1.7%
Economic sectors 10 1.7%
Electric bicycle 10 1.7%
Electric bus 10 1.7%
Land management 10 1.7%
Load management 10 1.7%
Load profile 10 1.7%
Machine learning 10 1.7%
National Bridge Inventory 10 1.7%
Noise 10 1.7%
Northeast Corridor 10 1.7%
Pipeline transport 10 1.7%
Powertrain 10 1.7%
Privacy 10 1.7%
Public policy 10 1.7%
Railway electrification system 10 1.7%
Strategy 10 1.7%
Systems engineering 10 1.7%
Transmission (mechanics) 10 1.7%
Valuation (finance) 10 1.7%
World energy supply and consumption 10 1.7%
Zero-energy building 10 1.7%
Audit 9 1.5%
Capital market 9 1.5%
Circular economy 9 1.5%
Cobalt 9 1.5%
Contract 9 1.5%
Development aid 9 1.5%
Electric motor 9 1.5%
Electric power industry 9 1.5%
Energiewende in Germany 9 1.5%
Feed-in tariff 9 1.5%
Fixed effects model 9 1.5%
Government 9 1.5%
High-voltage direct current 9 1.5%
Homelessness 9 1.5%
Household income in the United States 9 1.5%
Hydrogen production 9 1.5%
Interest rate 9 1.5%
Level of service 9 1.5%
Maintenance (technical) 9 1.5%
Pension 9 1.5%
Power purchase agreement 9 1.5%
Primary energy 9 1.5%
Real estate appraisal 9 1.5%
San Francisco Bay Area 9 1.5%
Sea level rise 9 1.5%
Sport utility vehicle 9 1.5%
Taxi 9 1.5%
Thermal power station 9 1.5%
Urban forestry 9 1.5%
Urban open space 9 1.5%
Value chain 9 1.5%
Vehicular ad hoc network 9 1.5%
Virtual power plant 9 1.5%
Volatile organic compound 9 1.5%
Water heating 9 1.5%
Workforce development 9 1.5%
Asset 8 1.4%
Bridge 8 1.4%
Brownfield land 8 1.4%
Capital (economics) 8 1.4%
Central heating 8 1.4%
Cloud computing 8 1.4%
Database 8 1.4%
Decision-making 8 1.4%
Dependent and independent variables 8 1.4%
Digital transformation 8 1.4%
Disability 8 1.4%
Ecology 8 1.4%
Electric vehicle battery 8 1.4%
Energy system 8 1.4%
Energy transition 8 1.4%
Energy-efficient driving 8 1.4%
Errors and residuals 8 1.4%
Financial risk 8 1.4%
Food 8 1.4%
Fuel oil 8 1.4%
Hazard 8 1.4%
Health care 8 1.4%
Heat pump 8 1.4%
Highway Trust Fund 8 1.4%
Hydrogen fuel 8 1.4%
Islanding 8 1.4%
Land use 8 1.4%
Land-use planning 8 1.4%
Lithium 8 1.4%
Lithium-ion battery 8 1.4%
Management 8 1.4%
Manufactured goods 8 1.4%
Matrix (mathematics) 8 1.4%
National Environmental Policy Act 8 1.4%
Noise pollution 8 1.4%
Petroleum industry 8 1.4%
Photovoltaic power station 8 1.4%
Placemaking 8 1.4%
Politics of global warming 8 1.4%
Pollution in California 8 1.4%
Population 8 1.4%
Property tax 8 1.4%
Psychological resilience 8 1.4%
Purchasing power parity 8 1.4%
Roundabout 8 1.4%
SCADA 8 1.4%
Technology roadmap 8 1.4%
Time 8 1.4%
Transportation network company 8 1.4%
Trucking industry in the United States 8 1.4%
U.S. Route 101 in California 8 1.4%
Vehicular ad-hoc network 8 1.4%
Venture capital 8 1.4%
Warehouse 8 1.4%
Africa 7 1.2%
Asia 7 1.2%
Bioswale 7 1.2%
Bus lane 7 1.2%
Clean technology 7 1.2%
Concrete 7 1.2%
Cyberattack 7 1.2%
Decentralization 7 1.2%
Dynamic pricing 7 1.2%
Economy of the United States 7 1.2%
Emerging market 7 1.2%
Energy efficiency in transport 7 1.2%
Energy market 7 1.2%
Energy poverty 7 1.2%
Environmental law 7 1.2%
Environmental technology 7 1.2%
Financial services 7 1.2%
Food security 7 1.2%
Funding 7 1.2%
Gasoline and diesel usage and pricing 7 1.2%
Geothermal power 7 1.2%
Human capital 7 1.2%
Hybrid vehicle drivetrain 7 1.2%
Input–output model 7 1.2%
Internal rate of return 7 1.2%
Internet 7 1.2%
Interstate 15 in California 7 1.2%
Interstate 495 (Capital Beltway) 7 1.2%
Interstate 805 7 1.2%
Interstate 95 in Maryland 7 1.2%
Inventory 7 1.2%
Investment management 7 1.2%
Leverage (finance) 7 1.2%
Low-carbon power 7 1.2%
Mattapan 7 1.2%
Mode choice 7 1.2%
Natural gas vehicle 7 1.2%
Next Generation Air Transportation System 7 1.2%
Nuclear reactor 7 1.2%
Obesity 7 1.2%
Ordinary least squares 7 1.2%
Outsourcing 7 1.2%
Ozone 7 1.2%
Peer-to-peer ridesharing 7 1.2%
Planning 7 1.2%
Private equity 7 1.2%
Public housing 7 1.2%
Pumped-storage hydroelectricity 7 1.2%
Quality of life 7 1.2%
Roxbury, Boston 7 1.2%
Securitization 7 1.2%
Smart charging 7 1.2%
Social exclusion 7 1.2%
Startup company 7 1.2%
Stock 7 1.2%
Synthetic fuel 7 1.2%
Tidal power 7 1.2%
Traffic calming 7 1.2%
Traffic simulation 7 1.2%
Transformer 7 1.2%
Urban design 7 1.2%
Air conditioning 6 1.0%
Americans with Disabilities Act of 1990 6 1.0%
Apprenticeship 6 1.0%
Automobile dependency 6 1.0%
Belt and Road Initiative 6 1.0%
Benchmarking 6 1.0%
Bicycle boulevard 6 1.0%
Big data 6 1.0%
Bill (law) 6 1.0%
California State Route 123 6 1.0%
Capacity building 6 1.0%
Carbon dioxide in Earth's atmosphere 6 1.0%
Carbon offset 6 1.0%
Cement 6 1.0%
Chevrolet Volt 6 1.0%
Climate change policy of the United States 6 1.0%
Coal pollution mitigation 6 1.0%
Commercial driver's license 6 1.0%
Computable general equilibrium 6 1.0%
Curb extension 6 1.0%
Data analysis 6 1.0%
Digitization 6 1.0%
Directive (European Union) 6 1.0%
Discounted cash flow 6 1.0%
Dorchester, Boston 6 1.0%
Economies of scale 6 1.0%
Ecosystem 6 1.0%
Electronic toll collection 6 1.0%
Energy policy 6 1.0%
Europe 6 1.0%
Factors of production 6 1.0%
Financial capital 6 1.0%
Fiscal year 6 1.0%
Gentrification 6 1.0%
Government spending 6 1.0%
High-occupancy toll lane 6 1.0%
Hours of service 6 1.0%
Interstate 270 (Maryland) 6 1.0%
Kyoto Protocol 6 1.0%
Latin America 6 1.0%
Leadership 6 1.0%
MARC Train 6 1.0%
Market power 6 1.0%
Mini-grids 6 1.0%
Monetary policy 6 1.0%
Mortgage loan 6 1.0%
Occupational safety and health 6 1.0%
Ocean thermal energy conversion 6 1.0%
Orange Line (MBTA) 6 1.0%
Parking lot 6 1.0%
Patent 6 1.0%
Peaking power plant 6 1.0%
Politics 6 1.0%
Prediction 6 1.0%
Projects of Common Interest 6 1.0%
Rate of return 6 1.0%
Rumble strip 6 1.0%
Scenario planning 6 1.0%
School bus 6 1.0%
Sepulveda Boulevard 6 1.0%
Small and medium-sized enterprises 6 1.0%
Solar panel 6 1.0%
Strategic management 6 1.0%
Supply (economics) 6 1.0%
Sustainable city 6 1.0%
Systemic risk 6 1.0%
Tram 6 1.0%
Transactive energy 6 1.0%
U.S. Route 206 6 1.0%
Urban area 6 1.0%
Value-added tax 6 1.0%
Vehicle emissions control 6 1.0%
Vehicle-to-everything 6 1.0%
Vignette (road tax) 6 1.0%
Walking 6 1.0%
Wind turbine 6 1.0%
Ageing 5 0.9%
Alternating current 5 0.9%
Alternative energy 5 0.9%
Alternative fuel vehicle 5 0.9%
Asset management 5 0.9%
Baltimore–Washington Parkway 5 0.9%
Bias 5 0.9%
Brighton, Boston 5 0.9%
Budget 5 0.9%
Buford Highway 5 0.9%
Bus stop 5 0.9%
Caltrain 5 0.9%
Carbon emission trading 5 0.9%
Carbon sequestration 5 0.9%
Clean Air Act of 1963 5 0.9%
Clean Water Act 5 0.9%
Commodity 5 0.9%
Computing 5 0.9%
Connected car 5 0.9%
Container ship 5 0.9%
Corporate social responsibility 5 0.9%
Correlation and dependence 5 0.9%
Cost-effectiveness analysis 5 0.9%
Credit rating agency 5 0.9%
Cryptocurrency 5 0.9%
Dallas/Fort Worth International Airport 5 0.9%
Design 5 0.9%
Discounting 5 0.9%
Discrete choice 5 0.9%
Drinking water 5 0.9%
Driving 5 0.9%
Economic interventionism 5 0.9%
Effects of climate change 5 0.9%
Effects of global warming 5 0.9%
Electric energy consumption 5 0.9%
Electric power quality 5 0.9%
Electric power system 5 0.9%
Emerging technologies 5 0.9%
Endogeneity (econometrics) 5 0.9%
Energy policy of the European Union 5 0.9%
Energy subsidy 5 0.9%
Environmental social science 5 0.9%
Exchange rate 5 0.9%
Financial crisis of 2007–2008 5 0.9%
Financial technology 5 0.9%
Fiscal policy 5 0.9%
Flexible-fuel vehicle 5 0.9%
Forest Hills station (MBTA) 5 0.9%
Freight transport 5 0.9%
General equilibrium theory 5 0.9%
Government debt 5 0.9%
Green Line (MBTA) 5 0.9%
Hedge (finance) 5 0.9%
Human impact on the environment 5 0.9%
Hydrogen economy 5 0.9%
Hyperloop 5 0.9%
Idle reduction 5 0.9%
Instrumental variables estimation 5 0.9%
International trade 5 0.9%
Interstate 695 (Maryland) 5 0.9%
Interstate 70 in Maryland 5 0.9%
Jurong 5 0.9%
Lighting 5 0.9%
Local government 5 0.9%
Market economy 5 0.9%
Marketing 5 0.9%
Mass Rapid Transit (Singapore) 5 0.9%
Mechanical engineering 5 0.9%
Median strip 5 0.9%
Micromobility 5 0.9%
Millennials 5 0.9%
National Ambient Air Quality Standards 5 0.9%
Off-the-grid 5 0.9%
Oil refinery 5 0.9%
Output (economics) 5 0.9%
Politics of climate change 5 0.9%
Power electronics 5 0.9%
Power supply 5 0.9%
Public Utility Regulatory Policies Act 5 0.9%
Ramp meter 5 0.9%
Redlining 5 0.9%
Refrigerator 5 0.9%
Retirement 5 0.9%
Ring road 5 0.9%
Risk assessment 5 0.9%
Sales 5 0.9%
Selective catalytic reduction 5 0.9%
Solar thermal energy 5 0.9%
Speed bump 5 0.9%
State Implementation Plan 5 0.9%
Telecommunication 5 0.9%
Time series 5 0.9%
Turbocharger 5 0.9%
U.S. Route 301 in Maryland 5 0.9%
U.S. Route 40 in Maryland 5 0.9%
U.S. Route 50 in Maryland 5 0.9%
Underwriting 5 0.9%
United States vehicle emission standards 5 0.9%
Urban heat island 5 0.9%
Waste management 5 0.9%
Air traffic control 4 0.7%
Airbag 4 0.7%
Automotive industry in the United States 4 0.7%
Automotive safety 4 0.7%
Autonomous car 4 0.7%
Availability 4 0.7%
Bioenergy 4 0.7%
Blue Line (San Diego Trolley) 4 0.7%
Boiler 4 0.7%
Brake 4 0.7%
Brexit 4 0.7%
Bridge scour 4 0.7%
Bus contracting model of Singapore 4 0.7%
Clean Development Mechanism 4 0.7%
Climate bond 4 0.7%
Combined sewer 4 0.7%
County Route 537 (New Jersey) 4 0.7%
Credit risk 4 0.7%
Dallas–Fort Worth metroplex 4 0.7%
Dangerous goods 4 0.7%
Deficit spending 4 0.7%
Deforestation 4 0.7%
Demand responsive transport 4 0.7%
Direct air capture 4 0.7%
Direct current 4 0.7%
Disaster risk reduction 4 0.7%
District heating 4 0.7%
Dividend 4 0.7%
Economic efficiency 4 0.7%
Ecotax 4 0.7%
Energy efficiency gap 4 0.7%
Energy service company 4 0.7%
Engineering 4 0.7%
Futures contract 4 0.7%
Geothermal energy 4 0.7%
Great Recession 4 0.7%
Grocery store 4 0.7%
Hydraulic fracturing 4 0.7%
Immigration 4 0.7%
Impact evaluation 4 0.7%
Income inequality in the United States 4 0.7%
Induced demand 4 0.7%
Industrial policy 4 0.7%
Information asymmetry 4 0.7%
Institution 4 0.7%
Internal Market in Electricity Directive 4 0.7%
Interstate 10 in Arizona 4 0.7%
Interstate 66 4 0.7%
Interstate 81 in Maryland 4 0.7%
Interstate 83 4 0.7%
Interstate 97 4 0.7%
Journey planner 4 0.7%
Knowledge 4 0.7%
Landscape 4 0.7%
Lane departure warning system 4 0.7%
Life insurance 4 0.7%
Locomotive 4 0.7%
Map 4 0.7%
Marine propulsion 4 0.7%
Market penetration 4 0.7%
Mean time between failures 4 0.7%
Mergers and acquisitions 4 0.7%
Miles per gallon gasoline equivalent 4 0.7%
Mini-grid 4 0.7%
Motor vehicles 4 0.7%
Natural disaster 4 0.7%
Natural resources 4 0.7%
Nature-based solutions 4 0.7%
Network effect 4 0.7%
New Jersey Route 4 4 0.7%
New Jersey Route 45 4 0.7%
Open access 4 0.7%
Pace (transit) 4 0.7%
Package delivery 4 0.7%
Peak oil 4 0.7%
Poverty reduction 4 0.7%
Power factor 4 0.7%
Power-line communication 4 0.7%
Procurement 4 0.7%
Production function 4 0.7%
Quantitative research 4 0.7%
Rail transportation in the United States 4 0.7%
Raised pavement marker 4 0.7%
Rare-earth element 4 0.7%
Red Line (MBTA) 4 0.7%
Regional integration 4 0.7%
Reinsurance 4 0.7%
Renewable energy commercialization 4 0.7%
Renewable fuels 4 0.7%
Renewable resource 4 0.7%
Renewable resources 4 0.7%
Resampling (statistics) 4 0.7%
River Line (NJ Transit) 4 0.7%
Road tax 4 0.7%
Robot 4 0.7%
Sales tax 4 0.7%
Science 4 0.7%
Seat belt 4 0.7%
Security 4 0.7%
Semi-trailer truck 4 0.7%
Short-sea shipping 4 0.7%
Shoulder (road) 4 0.7%
Smallholding 4 0.7%
Social cost 4 0.7%
Society 4 0.7%
Solar cell 4 0.7%
Standard deviation 4 0.7%
Start-stop system 4 0.7%
Street light 4 0.7%
Stress test (financial) 4 0.7%
Supply and demand 4 0.7%
Supply-chain management 4 0.7%
Survey methodology 4 0.7%
Sustainable Development Goal 7 4 0.7%
Tax increment financing 4 0.7%
Total harmonic distortion 4 0.7%
Toyota Prius 4 0.7%
Trade union 4 0.7%
Trans-Asian Railway 4 0.7%
Tunnel 4 0.7%
U.S. Route 130 4 0.7%
Urban freight distribution 4 0.7%
Value proposition 4 0.7%
Vocational education 4 0.7%
Waste heat 4 0.7%
Water supply 4 0.7%
World Wide Web 4 0.7%
World energy resources 4 0.7%
5G 3 0.5%
AC power 3 0.5%
Advanced driver-assistance systems 3 0.5%
Air cargo 3 0.5%
Alley 3 0.5%
Aluminium 3 0.5%
American Recovery and Reinvestment Act of 2009 3 0.5%
Analysis 3 0.5%
Apartment 3 0.5%
Asphalt concrete 3 0.5%
Assisted living 3 0.5%
Autogas 3 0.5%
Autonomy 3 0.5%
Barnett Shale 3 0.5%
Base load 3 0.5%
Blue Line (CTA) 3 0.5%
Bond market 3 0.5%
Bootstrapping (statistics) 3 0.5%
Business cycle 3 0.5%
Business incubator 3 0.5%
Business process 3 0.5%
CHAdeMO 3 0.5%
Capital requirement 3 0.5%
Carbon 3 0.5%
Carbon Offsetting and Reduction Scheme for International Aviation 3 0.5%
Cardiovascular disease 3 0.5%
Catalytic converter 3 0.5%
Causality 3 0.5%
Cement kiln 3 0.5%
Central Asia 3 0.5%
Cermak Road 3 0.5%
Check-in 3 0.5%
Chesapeake Bay Bridge 3 0.5%
Chevrolet Bolt 3 0.5%
Child 3 0.5%
Clairemont, San Diego 3 0.5%
Climate finance 3 0.5%
Coal-fired power station 3 0.5%
Cobb–Douglas production function 3 0.5%
Commodity market 3 0.5%
Common ethanol fuel mixtures 3 0.5%
Community Development Block Grant 3 0.5%
Commuter rail 3 0.5%
Compressor 3 0.5%
Conservation biology 3 0.5%
Contract for difference 3 0.5%
Coronavirus disease 2019 3 0.5%
Cost of capital 3 0.5%
Credit rating 3 0.5%
Cruise control 3 0.5%
Crystalline silicon 3 0.5%
DC-to-DC converter 3 0.5%
Day trading 3 0.5%
Demand curve 3 0.5%
Deregulation 3 0.5%
Diesel generator 3 0.5%
Dimethyl ether 3 0.5%
Disease 3 0.5%
Diversification (finance) 3 0.5%
Downtown MRT line 3 0.5%
Driver's license 3 0.5%
Dudley Square station 3 0.5%
Dynamometer 3 0.5%
E85 3 0.5%
Earmark (politics) 3 0.5%
Ecological resilience 3 0.5%
Economic impact analysis 3 0.5%
Economic surplus 3 0.5%
Economy of China 3 0.5%
Electric truck 3 0.5%
Electronic Road Pricing 3 0.5%
Energy and the environment 3 0.5%
Energy intensity 3 0.5%
Energy management 3 0.5%
Environmental protection 3 0.5%
Eric Garcetti 3 0.5%
European Train Control System 3 0.5%
Evolution 3 0.5%
Experiment 3 0.5%
Export 3 0.5%
Fairfield County, Connecticut 3 0.5%
Ferry 3 0.5%
Financial statement 3 0.5%
Florida State Road 528 3 0.5%
Florida State Road 826 3 0.5%
Florida State Road 836 3 0.5%
Florida's Turnpike 3 0.5%
Food desert 3 0.5%
Four-stroke engine 3 0.5%
Frontage road 3 0.5%
Fuels 3 0.5%
Garden State Parkway 3 0.5%
Gas 3 0.5%
Geographic information system 3 0.5%
Geothermal heat pump 3 0.5%
Golden Glades Interchange 3 0.5%
Green job 3 0.5%
Gross national income 3 0.5%
HVAC 3 0.5%
Hardware-in-the-loop simulation 3 0.5%
Health equity 3 0.5%
Health system 3 0.5%
Heat 3 0.5%
Home insurance 3 0.5%
Homestead Extension of Florida's Turnpike 3 0.5%
Horsepower 3 0.5%
Housing segregation in the United States 3 0.5%
Human migration 3 0.5%
Hurricane Maria 3 0.5%
Hurricane Sandy 3 0.5%
Hyliion Inc. 3 0.5%
Incineration 3 0.5%
Indirect land use change impacts of biofuels 3 0.5%
Inspection 3 0.5%
Intelligence 3 0.5%
Intercity bus service 3 0.5%
Internal control 3 0.5%
Interstate 205 (Oregon–Washington) 3 0.5%
Interstate 35W (Minnesota) 3 0.5%
Interstate 370 3 0.5%
Interstate 40 in Tennessee 3 0.5%
Interstate 5 in California 3 0.5%
Interstate 5 in Washington 3 0.5%
Interstate 65 in Tennessee 3 0.5%
Interstate 694 3 0.5%
Interstate 8 3 0.5%
Interstate 840 (Tennessee) 3 0.5%
Interstate 895 3 0.5%
Interstate 94 in Minnesota 3 0.5%
Ireland 3 0.5%
Jamaica Plain 3 0.5%
Kiln 3 0.5%
Kumeyaay 3 0.5%
Last mile 3 0.5%
Last mile (transportation) 3 0.5%
Level crossing 3 0.5%
Likelihood function 3 0.5%
Lithium iron phosphate 3 0.5%
Living wage 3 0.5%
Longer Heavier Vehicle 3 0.5%
Luxury vehicle 3 0.5%
Macroprudential regulation 3 0.5%
Maglev 3 0.5%
Manual on Uniform Traffic Control Devices 3 0.5%
Market analysis 3 0.5%
Maryland Route 144 3 0.5%
Maryland Route 2 3 0.5%
Maryland Route 200 3 0.5%
Melbourne 3 0.5%
Member state of the European Union 3 0.5%
Mentorship 3 0.5%
Methane 3 0.5%
Mexico City 3 0.5%
Miami metropolitan area 3 0.5%
Michigan State Trunkline Highway System 3 0.5%
Microsimulation 3 0.5%
Minneapolis–Saint Paul 3 0.5%
Mission Hill, Boston 3 0.5%
Mission Valley, San Diego 3 0.5%
Mixed-income housing 3 0.5%
Mobile payment 3 0.5%
Municipal bond 3 0.5%
Nameplate capacity 3 0.5%
National security 3 0.5%
Nationally Determined Contributions 3 0.5%
Natural capital 3 0.5%
Neodymium 3 0.5%
Network congestion 3 0.5%
New Jersey Route 21 3 0.5%
New Jersey Route 35 3 0.5%
New Jersey Route 47 3 0.5%
New Jersey Route 73 3 0.5%
New product development 3 0.5%
North Lawndale, Chicago 3 0.5%
Nuclear power plant 3 0.5%
Offshoring 3 0.5%
Open Automated Demand Response 3 0.5%
Otay Mesa, San Diego 3 0.5%
Over-the-counter (finance) 3 0.5%
Ownership 3 0.5%
Parameter 3 0.5%
Parking space 3 0.5%
Partnership 3 0.5%
Perfect competition 3 0.5%
Permeable paving 3 0.5%
Pickup truck 3 0.5%
Pink Line (CTA) 3 0.5%
Port of Long Beach 3 0.5%
Pothole 3 0.5%
Power-to-gas 3 0.5%
Present value 3 0.5%
Privatization 3 0.5%
Propensity score matching 3 0.5%
Property 3 0.5%
Public finance 3 0.5%
Public good 3 0.5%
Public good (economics) 3 0.5%
Public space 3 0.5%
Qualitative research 3 0.5%
Race and ethnicity in the United States Census 3 0.5%
Radio spectrum 3 0.5%
Railroad classes 3 0.5%
Range anxiety 3 0.5%
Range extender 3 0.5%
Real estate economics 3 0.5%
Regenerative brake 3 0.5%
Renewables Obligation (United Kingdom) 3 0.5%
Rice 3 0.5%
Rota (island) 3 0.5%
SFpark 3 0.5%
San Fernando Valley 3 0.5%
San Ysidro, San Diego 3 0.5%
Sanitation 3 0.5%
Santa Ana Freeway 3 0.5%
Satellite 3 0.5%
Satellite navigation 3 0.5%
Section 8 (housing) 3 0.5%
Security (finance) 3 0.5%
Shared space 3 0.5%
Sharing economy 3 0.5%
Smart growth 3 0.5%
Social cost of carbon 3 0.5%
Social discount rate 3 0.5%
Social inequality 3 0.5%
Socially responsible investing 3 0.5%
Software development 3 0.5%
Solvency II Directive 2009 3 0.5%
Specification (technical standard) 3 0.5%
Standards organization 3 0.5%
Strategic planning 3 0.5%
Stress (biology) 3 0.5%
Sunset provision 3 0.5%
Surface runoff 3 0.5%
Sustainable Development Goal 9 3 0.5%
Swap (finance) 3 0.5%
Tax credit 3 0.5%
Taxis of the United Kingdom 3 0.5%
Telematics 3 0.5%
Tennessee State Route 155 3 0.5%
Territories of the United States 3 0.5%
Thermal energy storage 3 0.5%
Thin-film solar cell 3 0.5%
Thomson–East Coast MRT line 3 0.5%
Tijuana 3 0.5%
Track gauge 3 0.5%
Traction motor 3 0.5%
Trade-off 3 0.5%
Train station 3 0.5%
Transmission system operator 3 0.5%
Transparency (behavior) 3 0.5%
Transport network analysis 3 0.5%
Tropical cyclone 3 0.5%
Type approval 3 0.5%
U.S. Route 1 in Maryland 3 0.5%
U.S. Route 15 in Maryland 3 0.5%
U.S. Route 16 in Michigan 3 0.5%
U.S. Route 29 in Maryland 3 0.5%
U.S. Route 31 3 0.5%
Uncertainty 3 0.5%
United States congressional apportionment 3 0.5%
Units of transportation measurement 3 0.5%
Urban agriculture 3 0.5%
Urban economics 3 0.5%
Urban renewal 3 0.5%
Utility frequency 3 0.5%
Value (economics) 3 0.5%
Value capture 3 0.5%
Vehicle weight 3 0.5%
Wafer (electronics) 3 0.5%
Water footprint 3 0.5%
Water supply network 3 0.5%
Wetland 3 0.5%
Whole-life cost 3 0.5%
Wind farm 3 0.5%
A-weighting 2 0.3%
Accountability 2 0.3%
Administration of federal assistance in the United States 2 0.3%
Adverse selection 2 0.3%
Agent-based model 2 0.3%
Aid 2 0.3%
Air source heat pump 2 0.3%
Algorithm 2 0.3%
Allston 2 0.3%
Amorphous silicon 2 0.3%
Amsterdam Airport Schiphol 2 0.3%
Amsterdam Centraal station 2 0.3%
Amsterdam Zuid station 2 0.3%
Amsterdam–Haarlem–Rotterdam railway 2 0.3%
Amtrak Cascades 2 0.3%
Analytic hierarchy process 2 0.3%
Annual average daily traffic 2 0.3%
Appalachia 2 0.3%
Apportionment 2 0.3%
Aquaculture 2 0.3%
Arbitrage 2 0.3%
ArcGIS 2 0.3%
Art 2 0.3%
Asian Highway Network 2 0.3%
Assembly line 2 0.3%
Asset allocation 2 0.3%
Athens 2 0.3%
Atmosphere of Earth 2 0.3%
Automatic dependent surveillance – broadcast 2 0.3%
Automobile safety 2 0.3%
Average treatment effect 2 0.3%
Aviation 2 0.3%
BACnet 2 0.3%
BRIC 2 0.3%
Balance sheet 2 0.3%
Battery electric bus 2 0.3%
Belfast 2 0.3%
Big Three (automobile manufacturers) 2 0.3%
Bipolar junction transistor 2 0.3%
Black start 2 0.3%
Blended finance 2 0.3%
Blue Line (MBTA) 2 0.3%
Body mass index 2 0.3%
Bond credit rating 2 0.3%
Border 2 0.3%
Box plot 2 0.3%
Brisbane 2 0.3%
Brisbane Airport 2 0.3%
Brisbane central business district 2 0.3%
Broadband over power lines 2 0.3%
Broward Boulevard 2 0.3%
Building code 2 0.3%
Bukit Panjang LRT line 2 0.3%
Bulk carrier 2 0.3%
Business case 2 0.3%
Business economics 2 0.3%
Busways in Brisbane 2 0.3%
CMAQ 2 0.3%
Cabotage 2 0.3%
Cadmium telluride photovoltaics 2 0.3%
Calibration 2 0.3%
California State Route 1 2 0.3%
California State Route 163 2 0.3%
California State Route 905 2 0.3%
California State Route 94 2 0.3%
Capacitor 2 0.3%
Capital Beltway 2 0.3%
Capitalism 2 0.3%
Carbon credit 2 0.3%
Carbon leakage 2 0.3%
Case study 2 0.3%
Catastrophe bond 2 0.3%
Census 2 0.3%
Charlestown, Boston 2 0.3%
Chemical industry 2 0.3%
Child care 2 0.3%
Child poverty 2 0.3%
China–Pakistan Economic Corridor 2 0.3%
Chronic condition 2 0.3%
Chūō Shinkansen 2 0.3%
Circle MRT line 2 0.3%
City Heights, San Diego 2 0.3%
City block 2 0.3%
Classic Maya collapse 2 0.3%
Clean Power Plan 2 0.3%
Clean Water State Revolving Fund 2 0.3%
Climate 2 0.3%
Climate Finance 2 0.3%
Clinker (cement) 2 0.3%
Coase theorem 2 0.3%
Coefficient of determination 2 0.3%
Coefficient of performance 2 0.3%
Cointegration 2 0.3%
Combined Charging System 2 0.3%
Communication protocol 2 0.3%
Communications-based train control 2 0.3%
Commuter town 2 0.3%
Compact city 2 0.3%
Comparative advantage 2 0.3%
Compressed-air energy storage 2 0.3%
Computer 2 0.3%
Computer engineering 2 0.3%
Concentrated poverty 2 0.3%
Conflict of interest 2 0.3%
Constitution of Texas 2 0.3%
Consumer Expenditure Survey 2 0.3%
Consumer choice 2 0.3%
Contra Costa County, California 2 0.3%
Contract farming 2 0.3%
Coolant 2 0.3%
Cooperative 2 0.3%
Copper indium gallium selenide solar cells 2 0.3%
Corruption 2 0.3%
Cost of living 2 0.3%
County Route 514 (New Jersey) 2 0.3%
County Route 551 (New Jersey) 2 0.3%
County Route 563 (New Jersey) 2 0.3%
Creative Commons license 2 0.3%
Creative industries 2 0.3%
Creativity 2 0.3%
Credit card 2 0.3%
Crime prevention through environmental design 2 0.3%
Cross Island MRT line 2 0.3%
Cross River Rail 2 0.3%
Cross-validation (statistics) 2 0.3%
Cruise ship 2 0.3%
Cyber insurance 2 0.3%
Cyber-security regulation 2 0.3%
DNP3 2 0.3%
Data 2 0.3%
Delivery drone 2 0.3%
Delphi method 2 0.3%
Demography 2 0.3%
Den Haag Centraal railway station 2 0.3%
Denisovan 2 0.3%
Depreciation 2 0.3%
Diesel particulate filter 2 0.3%
Difference in differences 2 0.3%
Digital Markets Act 2 0.3%
Digital twin 2 0.3%
Distribution management system 2 0.3%
Dodd–Frank Wall Street Reform and Consumer Protection Act 2 0.3%
Drivetrain 2 0.3%
Dry port 2 0.3%
Duck curve 2 0.3%
EPR (nuclear reactor) 2 0.3%
Earthquake insurance 2 0.3%
East Side Access 2 0.3%
Eco-efficiency 2 0.3%
Ecolabel 2 0.3%
Ecological footprint 2 0.3%
Econometrics 2 0.3%
Economic geography 2 0.3%
Economic globalization 2 0.3%
Economic model 2 0.3%
Economies of agglomeration 2 0.3%
Educational technology 2 0.3%
Electric road 2 0.3%
Electrification of Caltrain 2 0.3%
Electrolysis 2 0.3%
Electromagnetic suspension 2 0.3%
Electronic ticket 2 0.3%
Emerald Necklace 2 0.3%
Employee retention 2 0.3%
Energy Community 2 0.3%
Energy Star 2 0.3%
Energy economics 2 0.3%
Energy policy of the United Kingdom 2 0.3%
Energy returned on energy invested 2 0.3%
Engine efficiency 2 0.3%
Enhanced oil recovery 2 0.3%
Environmental economics 2 0.3%
Environmental impact of transport 2 0.3%
Equation 2 0.3%
Estlink 2 0.3%
European Battery Alliance 2 0.3%
European Union Emissions Trading System 2 0.3%
European Union law 2 0.3%
Executive Order 12866 2 0.3%
Exercise 2 0.3%
Exhaust gas recirculation 2 0.3%
Explosive 2 0.3%
Extreme weather 2 0.3%
Factory 2 0.3%
Feasibility study 2 0.3%
Federal Bridge Gross Weight Formula 2 0.3%
Federal Power Act 2 0.3%
Female entrepreneurs 2 0.3%
Fenway–Kenmore 2 0.3%
Field-effect transistor 2 0.3%
Filling station 2 0.3%
Fischer–Tropsch process 2 0.3%
Fixed income 2 0.3%
Floor area 2 0.3%
Fly ash 2 0.3%
Food system 2 0.3%
Force 2 0.3%
Ford Fusion (Americas) 2 0.3%
Ford Fusion Hybrid 2 0.3%
Foreign exchange risk 2 0.3%
Fourth Amendment to the United States Constitution 2 0.3%
Fuel poverty 2 0.3%
Full-size car 2 0.3%
Function (mathematics) 2 0.3%
Fundamental diagram of traffic flow 2 0.3%
Future proof 2 0.3%
G20 2 0.3%
General Data Protection Regulation 2 0.3%
Generation IV reactor 2 0.3%
Geographic mobility 2 0.3%
Georgia State Route 120 2 0.3%
German Renewable Energy Sources Act 2 0.3%
Glider (Belfast) 2 0.3%
Global Warming Solutions Act of 2006 2 0.3%
Global warming potential 2 0.3%
Graphics Core Next 2 0.3%
Great Western main line 2 0.3%
Green Line Extension 2 0.3%
Green building 2 0.3%
Green hydrogen 2 0.3%
Greenhouse effect 2 0.3%
Grid plan 2 0.3%
Gross margin 2 0.3%
Guard rail 2 0.3%
HVDC Inter-Island 2 0.3%
Habitat destruction 2 0.3%
Health insurance 2 0.3%
Heat transfer 2 0.3%
Hedge fund 2 0.3%
Helium 2 0.3%
High voltage 2 0.3%
Hillcrest, San Diego 2 0.3%
Historic preservation 2 0.3%
Hominidae 2 0.3%
Homo 2 0.3%
Hoofddorp 2 0.3%
Horsecar 2 0.3%
Hospital 2 0.3%
Household 2 0.3%
Housing First 2 0.3%
Housing discrimination in the United States 2 0.3%
Human 2 0.3%
Human evolution 2 0.3%
Hurricane Katrina 2 0.3%
Hyde Park, Boston 2 0.3%
Imperfect competition 2 0.3%
Inclusionary zoning 2 0.3%
Independent Power Producer 2 0.3%
Independent power producers in British Columbia 2 0.3%
Indium tin oxide 2 0.3%
Indonesian rupiah 2 0.3%
Induction generator 2 0.3%
Inductive charging 2 0.3%
Information and communications technology 2 0.3%
Information extraction 2 0.3%
Information privacy 2 0.3%
Institutional investor 2 0.3%
Insulated-gate bipolar transistor 2 0.3%
Integrated reporting 2 0.3%
Intended Nationally Determined Contributions 2 0.3%
Intermodal container 2 0.3%
International North–South Transport Corridor 2 0.3%
International development 2 0.3%
International labour law 2 0.3%
Internet access 2 0.3%
Interstate 196 2 0.3%
Interstate 24 2 0.3%
Interstate 25 in Colorado 2 0.3%
Interstate 295 (Delaware–Pennsylvania) 2 0.3%
Interstate 475 (Michigan) 2 0.3%
Interstate 49 in Louisiana 2 0.3%
Interstate 496 2 0.3%
Interstate 5 in Oregon 2 0.3%
Interstate 64 in Virginia 2 0.3%
Interstate 675 (Michigan) 2 0.3%
Interstate 69 in Indiana 2 0.3%
Interstate 69 in Michigan 2 0.3%
Interstate 710 and State Route 710 (California) 2 0.3%
Interstate 75 in Michigan 2 0.3%
Interstate 795 (Maryland) 2 0.3%
Interstate 895 (Maryland) 2 0.3%
Interstate 94 in Michigan 2 0.3%
Interstate 96 2 0.3%
Interurban 2 0.3%
Investment fund 2 0.3%
Invitation to tender 2 0.3%
JFK/UMass station 2 0.3%
Joint venture 2 0.3%
Knowledge economy 2 0.3%
LGBT 2 0.3%
Laboratory 2 0.3%
Land vehicles 2 0.3%
Law 2 0.3%
Layoff 2 0.3%
Leadership in Energy and Environmental Design 2 0.3%
Learner's permit 2 0.3%
Least squares 2 0.3%
Legal person 2 0.3%
Level of service (transportation) 2 0.3%
Lexical analysis 2 0.3%
Lidar 2 0.3%
Light-sport aircraft 2 0.3%
Linear regression 2 0.3%
Liquid fuel 2 0.3%
Lithium iron phosphate battery 2 0.3%
Lithium nickel cobalt aluminium oxides 2 0.3%
Lithium nickel manganese cobalt oxides 2 0.3%
Logistic regression 2 0.3%
London congestion charge 2 0.3%
Long run and short run 2 0.3%
Los Angeles International Airport 2 0.3%
Lumped-element model 2 0.3%
M-13 (Michigan highway) 2 0.3%
M-21 (Michigan highway) 2 0.3%
M-44 (Michigan highway) 2 0.3%
M-54 (Michigan highway) 2 0.3%
M-59 (Michigan highway) 2 0.3%
M-6 (Michigan highway) 2 0.3%
MBTA Commuter Rail 2 0.3%
MBTA key bus routes 2 0.3%
MOSFET 2 0.3%
Magnesium 2 0.3%
Magnet 2 0.3%
Mains electricity 2 0.3%
Marginal abatement cost 2 0.3%
Marginal cost 2 0.3%
Market concentration 2 0.3%
Market share 2 0.3%
Maryland Route 140 2 0.3%
Maryland Route 198 2 0.3%
Maryland Route 206 2 0.3%
Maryland Route 210 2 0.3%
Maryland Route 235 2 0.3%
Maryland Route 4 2 0.3%
Maryland Route 586 2 0.3%
Maryland Route 675 2 0.3%
Mean 2 0.3%
Measure R 2 0.3%
Mental health 2 0.3%
Merit order 2 0.3%
Metal 2 0.3%
Metrology 2 0.3%
Mild hybrid 2 0.3%
Minimum wage 2 0.3%
Mobile app 2 0.3%
Mobile phone 2 0.3%
Mobility Pricing 2 0.3%
Modbus 2 0.3%
Monash Freeway 2 0.3%
Monocrystalline silicon 2 0.3%
Monopolistic competition 2 0.3%
Monroney sticker 2 0.3%
Monte Carlo method 2 0.3%
Motivation 2 0.3%
Multi-agent system 2 0.3%
Multimodal interaction 2 0.3%
Multimodality 2 0.3%
Multistage rocket 2 0.3%
Named-entity recognition 2 0.3%
Nancy Pelosi 2 0.3%
Nanomaterials 2 0.3%
Nanotechnology 2 0.3%
Narrative 2 0.3%
National Income and Product Accounts 2 0.3%
Natural gas prices 2 0.3%
Natural gas storage 2 0.3%
Natural language processing 2 0.3%
Neodymium magnet 2 0.3%
New European Driving Cycle 2 0.3%
New Jersey Route 17 2 0.3%
New Jersey Route 23 2 0.3%
New Jersey Route 27 2 0.3%
New Jersey Route 31 2 0.3%
New Jersey Route 33 2 0.3%
New Jersey Route 70 2 0.3%
New York City Subway 2 0.3%
Newark Liberty International Airport 2 0.3%
Nicholas Stern, Baron Stern of Brentford 2 0.3%
Nissan Leaf 2 0.3%
Nominal power (photovoltaic) 2 0.3%
Non-Fossil Fuel Obligation 2 0.3%
Non-renewable resource 2 0.3%
Nordic countries 2 0.3%
North America 2 0.3%
Northern Powerhouse Rail 2 0.3%
North–South Corridor, Singapore 2 0.3%
Nuclear proliferation 2 0.3%
OSI model 2 0.3%
Ocean Drive (New Jersey) 2 0.3%
Official development assistance 2 0.3%
Oil sands 2 0.3%
Oil tanker 2 0.3%
Oil well 2 0.3%
Oligopoly 2 0.3%
On-board diagnostics 2 0.3%
Online shopping 2 0.3%
Orange Line (Los Angeles Metro) 2 0.3%
Organization Designation Authorization 2 0.3%
Overhead power line 2 0.3%
Owner-occupancy 2 0.3%
PAYGO 2 0.3%
Pallet 2 0.3%
Panama Canal 2 0.3%
Park and ride 2 0.3%
Passenger facility charge 2 0.3%
Passenger rail terminology 2 0.3%
Passivation (chemistry) 2 0.3%
Percentile 2 0.3%
Performance appraisal 2 0.3%
Perovskite solar cell 2 0.3%
Personal income 2 0.3%
Petroleum reservoir 2 0.3%
Phasor measurement unit 2 0.3%
Physical activity 2 0.3%
Pigovian tax 2 0.3%
Point of order 2 0.3%
Polycrystalline silicon 2 0.3%
Population health 2 0.3%
Port of Los Angeles 2 0.3%
Portal Bridge 2 0.3%
Poverty threshold 2 0.3%
Power semiconductor device 2 0.3%
Power-to-X 2 0.3%
Preventive healthcare 2 0.3%
Private sector development 2 0.3%
Production (economics) 2 0.3%
Project finance 2 0.3%
Project management 2 0.3%
Prokaryote 2 0.3%
Proof of work 2 0.3%
Protected intersection 2 0.3%
Prototype 2 0.3%
Public art 2 0.3%
Public service obligation 2 0.3%
Public sphere 2 0.3%
Public transport accessibility level 2 0.3%
Pump 2 0.3%
R&D intensity 2 0.3%
Radiator 2 0.3%
Rail infrastructure 2 0.3%
Randstad 2 0.3%
RandstadRail 2 0.3%
Reason 2 0.3%
Recent African origin of modern humans 2 0.3%
Reducing emissions from deforestation and forest degradation 2 0.3%
Reference range 2 0.3%
Refinancing 2 0.3%
Regional policy of the European Union 2 0.3%
Remote sensing 2 0.3%
Remote work 2 0.3%
Renewable energy in the European Union 2 0.3%
Renewable natural gas 2 0.3%
Renewable portfolio standard 2 0.3%
Renting 2 0.3%
Representative Concentration Pathway 2 0.3%
Request for proposal 2 0.3%
Reservoir 2 0.3%
Residential segregation in the United States 2 0.3%
Retrofitting 2 0.3%
Road safety 2 0.3%
Road space rationing 2 0.3%
Road surface marking 2 0.3%
Robust statistics 2 0.3%
Roslindale 2 0.3%
Rulemaking 2 0.3%
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SME finance 2 0.3%
Safety management system 2 0.3%
Sampling (statistics) 2 0.3%
San Ysidro Port of Entry 2 0.3%
Sanitary sewer 2 0.3%
Santiago 2 0.3%
Science and Technology Options Assessment 2 0.3%
Scooter-sharing system 2 0.3%
Scrubber 2 0.3%
Second-generation biofuels 2 0.3%
Semiconductor 2 0.3%
Setback (architecture) 2 0.3%
Severe acute respiratory syndrome 2 0.3%
Severe weather 2 0.3%
Shanghai maglev train 2 0.3%
Share (finance) 2 0.3%
Shelltown, San Diego 2 0.3%
Silicon carbide 2 0.3%
Single-family detached home 2 0.3%
Slum 2 0.3%
Small modular reactor 2 0.3%
Smart (marque) 2 0.3%
Smart motorway 2 0.3%
Smog 2 0.3%
Social Security (United States) 2 0.3%
Social media 2 0.3%
Soiling (solar energy) 2 0.3%
Solid-state battery 2 0.3%
Sonoma County, California 2 0.3%
Spatial planning 2 0.3%
Speciality chemicals 2 0.3%
Speculation 2 0.3%
Standard error 2 0.3%
Steam reforming 2 0.3%
Stock market index 2 0.3%
Storm 2 0.3%
Storm surge 2 0.3%
Strait of Malacca 2 0.3%
Strategic Petroleum Reserve (United States) 2 0.3%
Strategic environmental assessment 2 0.3%
Streeterville 2 0.3%
Streets of Albany, New York 2 0.3%
Sub-Saharan Africa 2 0.3%
Supercapacitor 2 0.3%
Supercomputer 2 0.3%
Surrogate model 2 0.3%
Surveillance 2 0.3%
Sustainable Development Goal 13 2 0.3%
Sustainable community 2 0.3%
Sustainable finance 2 0.3%
Synchronous motor 2 0.3%
Syndicated loan 2 0.3%
Systemically important financial institution 2 0.3%
Tax incidence 2 0.3%
Tax policy 2 0.3%
Telemetry 2 0.3%
Temperature 2 0.3%
Temperature coefficient 2 0.3%
Tesla Powerwall 2 0.3%
Thermostat 2 0.3%
Third Energy Package 2 0.3%
Thyristor 2 0.3%
Tight oil 2 0.3%
Tom Carper 2 0.3%
Tonnage 2 0.3%
Total cost of ownership 2 0.3%
Traceability 2 0.3%
Trans-European Transport Networks 2 0.3%
Trans-Pacific Partnership 2 0.3%
TransApex 2 0.3%
Transaction cost 2 0.3%
Transistor 2 0.3%
Transport Biofuels Directive 2003 2 0.3%
Transportation Investment Generating Economic Recovery 2 0.3%
Transportation forecasting 2 0.3%
Treaties of the European Union 2 0.3%
Tree 2 0.3%
Truck classification 2 0.3%
Turnover (employment) 2 0.3%
U.S. Route 127 in Michigan 2 0.3%
U.S. Route 13 Business (Salisbury, Maryland) 2 0.3%
U.S. Route 13 in Maryland 2 0.3%
U.S. Route 23 in Michigan 2 0.3%
U.S. Route 24 in Michigan 2 0.3%
U.S. Route 31 in Michigan 2 0.3%
Underinsurance (healthcare) 2 0.3%
Uninterruptible power supply 2 0.3%
Unit root 2 0.3%
United States Virgin Islands 2 0.3%
Uranium 2 0.3%
Urban green space 2 0.3%
UrbanSim 2 0.3%
Used car 2 0.3%
Utility ratemaking 2 0.3%
Variable-message sign 2 0.3%
Variance 2 0.3%
Vehicle miles traveled tax 2 0.3%
Vehicle registration plate 2 0.3%
Ventra 2 0.3%
Virginia Railway Express 2 0.3%
Visualization (graphics) 2 0.3%
Volt 2 0.3%
WASH 2 0.3%
Water resources 2 0.3%
Water scarcity 2 0.3%
Weather 2 0.3%
West Coast Main Line 2 0.3%
West Garfield Park, Chicago 2 0.3%
West Roxbury 2 0.3%
West Texas Intermediate 2 0.3%
Wildfire 2 0.3%
Work (human activity) 2 0.3%
Worldwide Harmonised Light Vehicles Test Procedure 2 0.3%
XBRL 2 0.3%
Yield (finance) 2 0.3%
Yucca Mountain nuclear waste repository 2 0.3%
Zoning in the United States 2 0.3%
1973 oil crisis 1 0.2%
2000s energy crisis 1 0.2%
2007–2008 world food price crisis 1 0.2%
2009 Supervisory Capital Assessment Program 1 0.2%
2019–20 coronavirus outbreak 1 0.2%
21st-century modernisation of the Great Western main line 1 0.2%
3D printing 1 0.2%
A1 road (Great Britain) 1 0.2%
A14 road (England) 1 0.2%
A30 road 1 0.2%
A303 road 1 0.2%
A48 road 1 0.2%
AC power plugs and sockets 1 0.2%
Aberdeen 1 0.2%
Abidjan 1 0.2%
Absorptive capacity 1 0.2%
Academic degree 1 0.2%
Access management 1 0.2%
Access to finance 1 0.2%
Accounting 1 0.2%
Acid rain 1 0.2%
Activity centre 1 0.2%
Adaptive reuse 1 0.2%
Administrative divisions of South Korea 1 0.2%
Adolescence 1 0.2%
Adoption 1 0.2%
Advanced Gas-cooled Reactor 1 0.2%
Advanced Technology Vehicles Manufacturing Loan Program 1 0.2%
Advanced persistent threat 1 0.2%
Advertising 1 0.2%
Advisory board 1 0.2%
Aerodynamics 1 0.2%
Aerospace 1 0.2%
Affordable housing in Canada 1 0.2%
African Americans 1 0.2%
Aftermarket (automotive) 1 0.2%
Ageism 1 0.2%
Agenda (meeting) 1 0.2%
Aggregate demand 1 0.2%
Agile software development 1 0.2%
Aircraft noise pollution 1 0.2%
Airline hub 1 0.2%
Airplane 1 0.2%
Airworthiness 1 0.2%
Akaike information criterion 1 0.2%
Aktau 1 0.2%
Alamo, California 1 0.2%
Alaskan Way 1 0.2%
Alaskan Way Viaduct 1 0.2%
Alcohol intoxication 1 0.2%
Alewife station 1 0.2%
Alex Yam 1 0.2%
Algorithmic trading 1 0.2%
All-electric range 1 0.2%
All-way stop 1 0.2%
Altmetrics 1 0.2%
American Samoa 1 0.2%
Americas 1 0.2%
Animal testing 1 0.2%
Annuity (European) 1 0.2%
Anti-aircraft warfare 1 0.2%
Anti-fouling paint 1 0.2%
Anti-lock braking system 1 0.2%
Applications of artificial intelligence 1 0.2%
Arborist 1 0.2%
Artificial general intelligence 1 0.2%
Artificial neural network 1 0.2%
Asphalt 1 0.2%
Asset Management Plan 1 0.2%
Asset-backed security 1 0.2%
Asynchronous Transfer Mode 1 0.2%
Auckland 1 0.2%
Audi R18 1 0.2%
Audience measurement 1 0.2%
Audit committee 1 0.2%
Augmented reality 1 0.2%
Auke Bay, Juneau 1 0.2%
Auto rickshaw 1 0.2%
Autocorrelation 1 0.2%
Automated guided vehicle 1 0.2%
Automatic Warning System 1 0.2%
Automobile drag coefficient 1 0.2%
Automotive electronics 1 0.2%
Automotive engineering 1 0.2%
Automotive industry in Sweden 1 0.2%
Automotive lighting 1 0.2%
Autonomous cruise control system 1 0.2%
Autopilot 1 0.2%
BMW X6 1 0.2%
Backward induction 1 0.2%
Bakken Formation 1 0.2%
Baku–Tbilisi–Kars railway 1 0.2%
Balance of trade 1 0.2%
Ballarat 1 0.2%
Bank regulation 1 0.2%
Bankers Hill, San Diego 1 0.2%
Bankruptcy 1 0.2%
Barack Obama 1 0.2%
Barking, London 1 0.2%
Barksdale Air Force Base 1 0.2%
Barrel (unit) 1 0.2%
Basel II 1 0.2%
Basel III 1 0.2%
Basslink 1 0.2%
Battery pack 1 0.2%
Battery recycling 1 0.2%
Bay Street station 1 0.2%
Beirut 1 0.2%
BeltLine 1 0.2%
Benefit–cost ratio 1 0.2%
Best management practice for water pollution 1 0.2%
Białystok 1 0.2%
Bidding 1 0.2%
Big Sur 1 0.2%
Big Sur Coast Highway 1 0.2%
Bill Clinton 1 0.2%
Biocide 1 0.2%
Biofouling 1 0.2%
Biofuel in the European Union 1 0.2%
Biofuel in the United States 1 0.2%
Bioretention 1 0.2%
Black carbon 1 0.2%
Blood alcohol content 1 0.2%
Blue economy 1 0.2%
Bob Crow 1 0.2%
Border control 1 0.2%
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Branches of science 1 0.2%
Break of gauge 1 0.2%
Brenner Base Tunnel 1 0.2%
Bridgewater, Nova Scotia 1 0.2%
Brightline West 1 0.2%
Brisbane Metro 1 0.2%
Bristol Temple Meads railway station 1 0.2%
Broadway (Seattle) 1 0.2%
Buangkok MRT station 1 0.2%
Build to order (HDB) 1 0.2%
Building 1 0.2%
Burke–Gilman Trail 1 0.2%
Business improvement district 1 0.2%
Bypass (road) 1 0.2%
C band (IEEE) 1 0.2%
CANAMEX Corridor 1 0.2%
Cabin John Parkway 1 0.2%
Cable barrier 1 0.2%
Calcium hydroxide 1 0.2%
California County Routes in zone G 1 0.2%
California High School Exit Exam 1 0.2%
California Manual on Uniform Traffic Control Devices 1 0.2%
California Smog Check Program 1 0.2%
California State Route 37 1 0.2%
California State Route 91 1 0.2%
Cannabis (drug) 1 0.2%
Capital asset pricing model 1 0.2%
Capitol Hill station 1 0.2%
Car dependency 1 0.2%
Car platform 1 0.2%
Car-free movement 1 0.2%
Caracas 1 0.2%
Carbon dioxide removal 1 0.2%
Carbon monoxide 1 0.2%
Carburetor 1 0.2%
Cardiff 1 0.2%
Care work 1 0.2%
CareMore 1 0.2%
Caregiver 1 0.2%
Carl Moyer Memorial Air Quality Standards Attainment Program 1 0.2%
Cars 1 0.2%
Cash 1 0.2%
Cash transfer 1 0.2%
Cash transfers 1 0.2%
Caspian Sea 1 0.2%
Catherine Wolfram 1 0.2%
Cedar River (Washington) 1 0.2%
Central Park 1 0.2%
Centrality 1 0.2%
Certificate of Entitlement 1 0.2%
Chabahar Port 1 0.2%
Changi 1 0.2%
Charter schools in the United States 1 0.2%
Chauffeur 1 0.2%
Chelsea, London 1 0.2%
Chemical equilibrium 1 0.2%
Chemical tanker 1 0.2%
Chemistry 1 0.2%
Cheshire 1 0.2%
Chester 1 0.2%
Chester railway station 1 0.2%
Chevron U.S.A., Inc. v. Natural Resources Defense Council, Inc. 1 0.2%
Chief risk officer 1 0.2%
Child development 1 0.2%
Child labour 1 0.2%
Chiller 1 0.2%
Chinatown, Boston 1 0.2%
Chinatown–International District, Seattle 1 0.2%
Choice modelling 1 0.2%
Citation 1 0.2%
Citizenship 1 0.2%
City Journal 1 0.2%
CityLink 1 0.2%
Clay Street Bridge 1 0.2%
Clem Jones Tunnel 1 0.2%
Clothes dryer 1 0.2%
Cobequid Pass 1 0.2%
Cofiring 1 0.2%
Cognitive bias 1 0.2%
Cognitive science 1 0.2%
Cohousing 1 0.2%
Coliseum–Oakland International Airport line 1 0.2%
Collaboration 1 0.2%
Colonial Pipeline 1 0.2%
Colonialism 1 0.2%
Columbia Heights (Washington, D.C.) 1 0.2%
Combined cycle 1 0.2%
Commercial mortgage 1 0.2%
Committee 1 0.2%
Common carrier 1 0.2%
Communication 1 0.2%
Community gardening 1 0.2%
Community health 1 0.2%
Compact car 1 0.2%
Comparative statics 1 0.2%
Competition law 1 0.2%
Compressed air energy storage 1 0.2%
Compression ratio 1 0.2%
Computer accessibility 1 0.2%
Computer program 1 0.2%
Computer programming 1 0.2%
Computer simulation 1 0.2%
Conceptual framework 1 0.2%
Conceptual model 1 0.2%
Concorde 1 0.2%
Condensing boiler 1 0.2%
Conference on the Future of Europe 1 0.2%
Consensus (computer science) 1 0.2%
Consent 1 0.2%
Conservation (ethic) 1 0.2%
Constant elasticity of substitution 1 0.2%
Construction aggregate 1 0.2%
Consumer behaviour 1 0.2%
Context-sensitive solutions 1 0.2%
Continuously variable transmission 1 0.2%
Control theory 1 0.2%
Cool Japan 1 0.2%
Copyright 1 0.2%
Coral 1 0.2%
Coral reef 1 0.2%
Core inflation 1 0.2%
Cork Airport 1 0.2%
Corporate bond 1 0.2%
Corporate finance 1 0.2%
Corporate governance 1 0.2%
Correlation 1 0.2%
Cost curve 1 0.2%
Cost of equity 1 0.2%
Cotati, California 1 0.2%
County Route 506 (New Jersey) 1 0.2%
County Route 508 (New Jersey) 1 0.2%
County Route 520 (New Jersey) 1 0.2%
County Route 544 (New Jersey) 1 0.2%
County Route 547 (New Jersey) 1 0.2%
County Route 561 (New Jersey) 1 0.2%
County Route 571 (New Jersey) 1 0.2%
Covariance matrix 1 0.2%
Cracking (chemistry) 1 0.2%
Crane (machine) 1 0.2%
Crewe railway station 1 0.2%
Crime 1 0.2%
Crime prevention 1 0.2%
Criteria air pollutants 1 0.2%
Critical illness insurance 1 0.2%
Cross-laminated timber 1 0.2%
Crossover (automobile) 1 0.2%
Crowdfunding 1 0.2%
Crumb rubber 1 0.2%
Cryptography 1 0.2%
Cultural identity 1 0.2%
Cupertino, California 1 0.2%
Curb cut 1 0.2%
Current account (balance of payments) 1 0.2%
Customer experience 1 0.2%
Customer-relationship management 1 0.2%
Cybercrime 1 0.2%
Dakota Access Pipeline 1 0.2%
Dallas Love Field 1 0.2%
Dam 1 0.2%
Daylighting (streams) 1 0.2%
De-icing 1 0.2%
Death 1 0.2%
Decarbonisation measures in proposed UK electricity market reform 1 0.2%
Decibel 1 0.2%
Decision tree learning 1 0.2%
Deductible 1 0.2%
Deep geological repository 1 0.2%
Deep learning 1 0.2%
Default (finance) 1 0.2%
Deflation 1 0.2%
Delaware and Raritan Canal 1 0.2%
Demand management 1 0.2%
Demography of the United States 1 0.2%
Department of Motor Vehicles 1 0.2%
Deposit insurance 1 0.2%
Derivative 1 0.2%
Derivative (finance) 1 0.2%
Desalination 1 0.2%
Developed country 1 0.2%
Development economics 1 0.2%
Diamond interchange 1 0.2%
Didcot Parkway railway station 1 0.2%
Diesel locomotive 1 0.2%
Diffusion of innovations 1 0.2%
Digital Revolution 1 0.2%
Digital identity 1 0.2%
Digital wallet 1 0.2%
Director general 1 0.2%
Discrimination 1 0.2%
Disease burden 1 0.2%
Disposable household and per capita income 1 0.2%
Distracted driving 1 0.2%
Distribution (marketing) 1 0.2%
Distribution center 1 0.2%
Distribution of wealth 1 0.2%
Diversity (business) 1 0.2%
Dividend policy 1 0.2%
Division of labour 1 0.2%
Dominance (economics) 1 0.2%
Donald Trump 1 0.2%
Dose–response relationship 1 0.2%
Dow Jones Sustainability Indices 1 0.2%
Downtown 1 0.2%
Downtown San Diego 1 0.2%
Drag (physics) 1 0.2%
Driving cycle 1 0.2%
Drought 1 0.2%
Dual carriageway 1 0.2%
Dublin 1 0.2%
Due diligence 1 0.2%
Duplex (building) 1 0.2%
Dwelling 1 0.2%
ECall 1 0.2%
EZ-Link 1 0.2%
Earned income tax credit 1 0.2%
Earnings before interest, taxes, depreciation, and amortization 1 0.2%
Earth sciences 1 0.2%
Earthquake 1 0.2%
Easement 1 0.2%
East Asia 1 0.2%
East Bay 1 0.2%
East West Link (Melbourne) 1 0.2%
EastLink (Melbourne) 1 0.2%
Eastern Europe 1 0.2%
Eastside, Birmingham 1 0.2%
Eco-Management and Audit Scheme 1 0.2%
Ecodesign 1 0.2%
Economic bubble 1 0.2%
Economic development incentive 1 0.2%
Economic impacts of climate change 1 0.2%
Economy and the environment 1 0.2%
Economy of Africa 1 0.2%
Economy of Australia 1 0.2%
Economy of Canada 1 0.2%
Economy of Japan 1 0.2%
Economy of Wales 1 0.2%
Economy of the United Kingdom 1 0.2%
Economy-wide material flow accounts 1 0.2%
Ecosystem service 1 0.2%
Edinburgh 1 0.2%
Education reform 1 0.2%
Efficiency 1 0.2%
Elasticity (physics) 1 0.2%
Elderly care 1 0.2%
Electric multiple unit 1 0.2%
Electric rickshaw 1 0.2%
Electric vehicles 1 0.2%
Electrical fault 1 0.2%
Electrician 1 0.2%
Electromagnetic field 1 0.2%
Electronic control unit 1 0.2%
Electronic stability control 1 0.2%
Elliott Bay 1 0.2%
Embarcadero (San Francisco) 1 0.2%
Embedded system 1 0.2%
Emergence 1 0.2%
Emergency medical services 1 0.2%
Emission Control Area 1 0.2%
Emissions budget 1 0.2%
Empathy 1 0.2%
Employee benefits 1 0.2%
Employer transportation benefits in the United States 1 0.2%
Energy conversion efficiency 1 0.2%
Energy in transport 1 0.2%
Energy mix 1 0.2%
Energy performance certificate 1 0.2%
Energy policy of Australia 1 0.2%
Energy poverty and cooking 1 0.2%
Energy return on investment 1 0.2%
Energy subsidies 1 0.2%
Energy transformation 1 0.2%
Engine control unit 1 0.2%
Engine-generator 1 0.2%
Engines 1 0.2%
Enlargement of the European Union 1 0.2%
Enterprise risk management 1 0.2%
Entropy 1 0.2%
Environment ministries 1 0.2%
Environmental degradation 1 0.2%
Environmental design 1 0.2%
Environmental gentrification 1 0.2%
Environmental impact of shipping 1 0.2%
Environmental noise 1 0.2%
Environmental remediation 1 0.2%
Environmental resource management 1 0.2%
Estimator 1 0.2%
Ethanol fuel 1 0.2%
Euclidean vector 1 0.2%
Eur-Lex 1 0.2%
EuroVelo 1 0.2%
European Union legislative procedure 1 0.2%
European debt crisis 1 0.2%
European integration 1 0.2%
Euston railway station 1 0.2%
Event data recorder 1 0.2%
Eviction 1 0.2%
Exchange-traded fund 1 0.2%
Excise 1 0.2%
Exclusion of the null hypothesis 1 0.2%
Expected value 1 0.2%
Expert 1 0.2%
Expo MRT station 1 0.2%
Exponential growth 1 0.2%
Extreme poverty 1 0.2%
F-test 1 0.2%
FTP-75 1 0.2%
Factor analysis 1 0.2%
Factor market 1 0.2%
Failure rate 1 0.2%
Fair Labor Standards Act of 1938 1 0.2%
Fare 1 0.2%
Farm 1 0.2%
Fast food 1 0.2%
Feed-in tariffs in Germany 1 0.2%
Fehmarn Belt Fixed Link 1 0.2%
Financial analyst 1 0.2%
Financial crisis 1 0.2%
Financial crisis of 2007–08 1 0.2%
Financial inclusion 1 0.2%
Financial law 1 0.2%
Financial literacy 1 0.2%
Financial markets 1 0.2%
Financial plan 1 0.2%
Financial regulation 1 0.2%
Financial stability 1 0.2%
Financial transaction 1 0.2%
First Hill Streetcar 1 0.2%
Fishing 1 0.2%
Fixed point (mathematics) 1 0.2%
Flat rate 1 0.2%
Flextime 1 0.2%
Floating wind turbine 1 0.2%
Flood insurance 1 0.2%
Flooring 1 0.2%
Flue 1 0.2%
Flue-gas desulfurization 1 0.2%
Fluorinated gases 1 0.2%
Food industry 1 0.2%
Food policy 1 0.2%
Food safety 1 0.2%
Ford C-Max 1 0.2%
Ford F-Series 1 0.2%
Form-based code 1 0.2%
Fort Point, Boston 1 0.2%
Forth Road Bridge 1 0.2%
Fossil fuel phase-out 1 0.2%
Foynes 1 0.2%
Fraction 1 0.2%
Fragile state 1 0.2%
Fraud deterrence 1 0.2%
Free market 1 0.2%
Free public transport 1 0.2%
Free trade 1 0.2%
FreedomCAR and Vehicle Technologies 1 0.2%
Freelancer 1 0.2%
Freight bicycle 1 0.2%
Fuel injection 1 0.2%
Fuel poverty in the United Kingdom 1 0.2%
Fuel taxes in the United States 1 0.2%
Fuerteventura 1 0.2%
Full employment 1 0.2%
Furnace 1 0.2%
GSM-R 1 0.2%
Galileo (satellite navigation) 1 0.2%
Game theory 1 0.2%
Gantry crane 1 0.2%
Gas carrier 1 0.2%
Gas engine 1 0.2%
Gas flare 1 0.2%
Gas turbine 1 0.2%
Gasoline direct injection 1 0.2%
Gateway Program (Northeast Corridor) 1 0.2%
Geelong 1 0.2%
General Motors EV1 1 0.2%
General practitioner 1 0.2%
Generalised cost 1 0.2%
Generalized method of moments 1 0.2%
Geometric design of roads 1 0.2%
Geopolitics 1 0.2%
George Parks Highway 1 0.2%
Geostationary orbit 1 0.2%
Geostrategy 1 0.2%
Geriatrics 1 0.2%
Gini coefficient 1 0.2%
Glasgow 1 0.2%
Glasgow Subway 1 0.2%
Glass 1 0.2%
Glenn Highway 1 0.2%
Global financial system 1 0.2%
Global governance 1 0.2%
Glued laminated timber 1 0.2%
Golden Gate Bridge 1 0.2%
Golden Hill, San Diego 1 0.2%
Golden Horseshoe 1 0.2%
Golf cart 1 0.2%
Goods 1 0.2%
Goods and Services Tax (Singapore) 1 0.2%
Google Scholar 1 0.2%
Gran Canaria 1 0.2%
Greater Toronto Area 1 0.2%
Green Line (Washington Metro) 1 0.2%
Green bank 1 0.2%
Green bond 1 0.2%
Greenhouse 1 0.2%
Greenway (landscape) 1 0.2%
Gross income 1 0.2%
Ground-coupled heat exchanger 1 0.2%
Groundwater 1 0.2%
Groundwater recharge 1 0.2%
Group home 1 0.2%
HAWK beacon 1 0.2%
HAZWOPER 1 0.2%
Habitat III 1 0.2%
Hackney Wick 1 0.2%
Haines, Alaska 1 0.2%
Hampton Roads 1 0.2%
Harmonized sales tax 1 0.2%
Head-on collision 1 0.2%
Health insurance coverage in the United States 1 0.2%
Health professional 1 0.2%
HealthLine 1 0.2%
Healthy diet 1 0.2%
Heat of combustion 1 0.2%
Heat wave 1 0.2%
Heating degree day 1 0.2%
Heavy fuel oil 1 0.2%
Hedonic regression 1 0.2%
Herbert Hoover 1 0.2%
Herfindahl–Hirschman Index 1 0.2%
High frequency 1 0.2%
High-rise building 1 0.2%
High-yield debt 1 0.2%
Highway patrol 1 0.2%
Hillview, Singapore 1 0.2%
Hispanic and Latino Americans 1 0.2%
Historic districts in the United States 1 0.2%
Hoboken Terminal 1 0.2%
Home care 1 0.2%
Home zone 1 0.2%
Homosexuality 1 0.2%
Honda Accord 1 0.2%
Honda Civic 1 0.2%
Honda Clarity 1 0.2%
Honda Insight 1 0.2%
Hotel 1 0.2%
Housing Benefit 1 0.2%
Housing discrimination (United States) 1 0.2%
Housing trust fund 1 0.2%
Human Development Index 1 0.2%
Human activities with impact on the environment 1 0.2%
Human resources 1 0.2%
Human trafficking 1 0.2%
Humanitarian aid 1 0.2%
Hunger 1 0.2%
Hydrocarbon Oil Duty 1 0.2%
Hypothesis 1 0.2%
Hyundai Sonata 1 0.2%
IEC 62196 1 0.2%
ISO 26262 1 0.2%
Identity document 1 0.2%
Ignition interlock device 1 0.2%
Illegal taxi operation 1 0.2%
Impact attenuator 1 0.2%
Impact investing 1 0.2%
Implementation 1 0.2%
Incandescent light bulb 1 0.2%
Inclusion (education) 1 0.2%
Income distribution 1 0.2%
Incoterms 1 0.2%
Independent power producer 1 0.2%
Index (economics) 1 0.2%
Index-based insurance 1 0.2%
Indian reservation 1 0.2%
Indiana Rail Road 1 0.2%
Industrial Revolution 1 0.2%
Industrial engineering 1 0.2%
Industrial internet of things 1 0.2%
Industries 1 0.2%
Industries (economics) 1 0.2%
Infection 1 0.2%
Infiltration (hydrology) 1 0.2%
Influenza 1 0.2%
Influenza A virus subtype H1N1 1 0.2%
Information retrieval 1 0.2%
Information technology 1 0.2%
Infrared 1 0.2%
Infrastructure ministries 1 0.2%
Initial coin offering 1 0.2%
Inland Empire 1 0.2%
Inland Railway 1 0.2%
Innovation district 1 0.2%
Insurance-Linked Securities (ILS) 1 0.2%
Intellectual property 1 0.2%
Intelligent speed adaptation 1 0.2%
Intended nationally determined contributions 1 0.2%
Intensive farming 1 0.2%
Intermediate consumption 1 0.2%
Internal audit 1 0.2%
International System of Units 1 0.2%
International performance measurement and verification protocol 1 0.2%
International roughness index 1 0.2%
Internet celebrity 1 0.2%
Internship 1 0.2%
Interstate 278 1 0.2%
Interstate 287 1 0.2%
Interstate 290 (Illinois) 1 0.2%
Interstate 294 1 0.2%
Interstate 355 1 0.2%
Interstate 35E (Minnesota) 1 0.2%
Interstate 380 (Pennsylvania) 1 0.2%
Interstate 394 1 0.2%
Interstate 440 (Tennessee) 1 0.2%
Interstate 45 1 0.2%
Interstate 465 1 0.2%
Interstate 494 1 0.2%
Interstate 495 (Massachusetts) 1 0.2%
Interstate 5 1 0.2%
Interstate 55 in Illinois 1 0.2%
Interstate 65 1 0.2%
Interstate 69 in Texas 1 0.2%
Interstate 70 in Indiana 1 0.2%
Interstate 76 (Ohio–New Jersey) 1 0.2%
Interstate 80 1 0.2%
Interstate 80 in California 1 0.2%
Interstate 80 in Illinois 1 0.2%
Interstate 80 in Utah 1 0.2%
Interstate 81 1 0.2%
Interstate 880 (California) 1 0.2%
Interstate 90 in Illinois 1 0.2%
Interstate 93 1 0.2%
Interstate 94 in Illinois 1 0.2%
Interstate 95 1 0.2%
Interstate 95 in Massachusetts 1 0.2%
Interstate 95 in Virginia 1 0.2%
Invasive species 1 0.2%
Invoice 1 0.2%
Iron Horse Regional Trail 1 0.2%
Iron ore 1 0.2%
Iterated function 1 0.2%
Jacobian matrix and determinant 1 0.2%
James Hansen 1 0.2%
Jersey barrier 1 0.2%
Jet pack 1 0.2%
Jevons paradox 1 0.2%
Joe Biden 1 0.2%
John Christy 1 0.2%
John F. Kennedy International Airport 1 0.2%
Jon Wellinghoff 1 0.2%
Joseph Schumpeter 1 0.2%
Kennedy Expressway 1 0.2%
Kerosene 1 0.2%
Keystone Pipeline 1 0.2%
Kusu Island 1 0.2%
LED lamp 1 0.2%
LGBT community 1 0.2%
LKW-Maut 1 0.2%
LNG carrier 1 0.2%
La Gomera 1 0.2%
La Palma 1 0.2%
LaGuardia Airport 1 0.2%
Labrador Nature Reserve 1 0.2%
Land use, land-use change, and forestry 1 0.2%
Landlocked country 1 0.2%
Landlord 1 0.2%
Language 1 0.2%
Lanzarote 1 0.2%
Lasso (statistics) 1 0.2%
Launch vehicle 1 0.2%
Lawn 1 0.2%
Lead 1 0.2%
Least Developed Countries 1 0.2%
Lebanese pound 1 0.2%
Lee Hsien Loong 1 0.2%
Legacy Way 1 0.2%
Legible London 1 0.2%
Levee 1 0.2%
Levelling up policy of the Boris Johnson government 1 0.2%
Liberty 1 0.2%
Library 1 0.2%
Life annuity 1 0.2%
Life expectancy 1 0.2%
Light pollution 1 0.2%
Light-emitting diode 1 0.2%
Lima 1 0.2%
Liquidated damages 1 0.2%
Liquidity risk 1 0.2%
Literacy 1 0.2%
Literature 1 0.2%
Litre 1 0.2%
Liverpool 1 0.2%
Load following power plant 1 0.2%
Local economic development 1 0.2%
Local flexibility markets 1 0.2%
Log-normal distribution 1 0.2%
Logan International Airport 1 0.2%
Logarithm 1 0.2%
Logistic function 1 0.2%
Logistics Performance Index 1 0.2%
London Gateway 1 0.2%
London Underground 1 0.2%
London low emission zone 1 0.2%
Long-term care 1 0.2%
Los Cristianos 1 0.2%
Loss function 1 0.2%
Low technology 1 0.2%
Low-emission zone 1 0.2%
Low-speed vehicle 1 0.2%
Lumber 1 0.2%
Lumen (unit) 1 0.2%
Lunch 1 0.2%
Luxury car 1 0.2%
M-Pesa 1 0.2%
M1 motorway 1 0.2%
M4 motorway 1 0.2%
M80 Ring Road, Melbourne 1 0.2%
MARPOL 73/78 1 0.2%
MAX Light Rail 1 0.2%
MOT test 1 0.2%
Macroeconomic model 1 0.2%
Malnutrition 1 0.2%
Manchester 1 0.2%
Mandatory renewable energy target 1 0.2%
Manual for Streets 1 0.2%
Manual transmission 1 0.2%
Marine biology 1 0.2%
Marine energy 1 0.2%
Market access 1 0.2%
Market segmentation 1 0.2%
Markov decision process 1 0.2%
Maryland Route 147 1 0.2%
Maryland Route 180 1 0.2%
Maryland Route 187 1 0.2%
Maryland Route 197 1 0.2%
Maryland Route 212 1 0.2%
Maryland Route 32 1 0.2%
Maryland Route 5 1 0.2%
Maryland Route 7 1 0.2%
Massachusetts Turnpike 1 0.2%
Materials 1 0.2%
Mathematical model 1 0.2%
Mathematics 1 0.2%
Matthew W. Daus 1 0.2%
McMansion 1 0.2%
Mean squared error 1 0.2%
Measurement 1 0.2%
Medicare (United States) 1 0.2%
Medicine 1 0.2%
Megacity 1 0.2%
Melbourne Airport 1 0.2%
Mercury-vapor lamp 1 0.2%
Merseyside 1 0.2%
Metre 1 0.2%
Metro Detroit 1 0.2%
Metro Tunnel 1 0.2%
Metropolitan area 1 0.2%
Mexico–United States border 1 0.2%
Micro combined heat and power 1 0.2%
Microfinance 1 0.2%
Microgeneration 1 0.2%
Microinsurance 1 0.2%
Microsoft Access 1 0.2%
Middle class 1 0.2%
Millstone River 1 0.2%
Minority group 1 0.2%
Minutes 1 0.2%
Missile 1 0.2%
Missing middle housing 1 0.2%
Mission Hills, San Diego 1 0.2%
Mitigation banking 1 0.2%
MnPASS 1 0.2%
Mobile phones and driving safety 1 0.2%
Modal share 1 0.2%
Mode (statistics) 1 0.2%
Modernization theory 1 0.2%
Modularity 1 0.2%
Molten salt reactor 1 0.2%
Money laundering 1 0.2%
Monroe County, Indiana 1 0.2%
Montevideo 1 0.2%
Montreux Convention Regarding the Regime of the Straits 1 0.2%
Moore's law 1 0.2%
Moral hazard 1 0.2%
Moselle 1 0.2%
Motel 1 0.2%
Mount Hope, San Diego 1 0.2%
Multi-junction solar cell 1 0.2%
Multicollinearity 1 0.2%
Multiculturalism 1 0.2%
Multimodal distribution 1 0.2%
Multiple unit 1 0.2%
Multiple-criteria decision analysis 1 0.2%
Municipalization 1 0.2%
Murray Basin Rail Project 1 0.2%
NYC Ferry 1 0.2%
Napa County, California 1 0.2%
National Flood Insurance Program 1 0.2%
National Renewable Energy Action Plan 1 0.2%
National accounts 1 0.2%
National debt of the United States 1 0.2%
Natural hazard 1 0.2%
Natural logarithm 1 0.2%
Natural monopoly 1 0.2%
Nature Society (Singapore) 1 0.2%
Nature reserve 1 0.2%
Navigation 1 0.2%
Near West Side, Chicago 1 0.2%
Needs assessment 1 0.2%
Neighborhoods in Boston 1 0.2%
Neighbourhood 1 0.2%
Net income 1 0.2%
Network topology 1 0.2%
Neural network 1 0.2%
New Deal 1 0.2%
New Jersey Route 168 1 0.2%
New Jersey Route 18 1 0.2%
New Jersey Route 3 1 0.2%
New Jersey Route 440 1 0.2%
New Jersey Route 49 1 0.2%
New Jersey Route 495 1 0.2%
New Jersey Route 55 1 0.2%
New Jersey Turnpike 1 0.2%
New Urbanism 1 0.2%
New York energy law 1 0.2%
Newport railway station 1 0.2%
Next Generation EU 1 0.2%
Noise regulation 1 0.2%
Nominal rigidity 1 0.2%
Non-revenue water 1 0.2%
Nonlinear system 1 0.2%
Nord Stream 1 0.2%
North East Link 1 0.2%
North East MRT line 1 0.2%
North End, Boston 1 0.2%
North Park, San Diego 1 0.2%
North Station 1 0.2%
North Tarrant Express 1 0.2%
North Wales Coast Line 1 0.2%
North West England 1 0.2%
NorthConnect 1 0.2%
Northern Powerhouse 1 0.2%
Northern line extension to Battersea 1 0.2%
Northgate, Seattle 1 0.2%
Northstar Line 1 0.2%
Northwest Passage 1 0.2%
Nuclear Waste Policy Act 1 0.2%
Nuclear fuel cycle 1 0.2%
Nuclear marine propulsion 1 0.2%
Nuclear safety and security 1 0.2%
Nuclear weapon 1 0.2%
Nudge (book) 1 0.2%
Nudge theory 1 0.2%
Null hypothesis 1 0.2%
Nursing 1 0.2%
Nursing home care 1 0.2%
Oahu 1 0.2%
Oil reserves 1 0.2%
Old York Road 1 0.2%
Old age 1 0.2%
OneWeb satellite constellation 1 0.2%
Open data 1 0.2%
Open energy system models 1 0.2%
Open source 1 0.2%
Open-source software 1 0.2%
Operating margin 1 0.2%
Operating model 1 0.2%
Optical character recognition 1 0.2%
Optimal tax 1 0.2%
Organization 1 0.2%
Othello station 1 0.2%
Ottmar Edenhofer 1 0.2%
Ounce 1 0.2%
Overfitting 1 0.2%
Overhead (business) 1 0.2%
Overhead line 1 0.2%
Overlapping generations model 1 0.2%
Overtime 1 0.2%
Own risk and solvency assessment 1 0.2%
Oxford railway station 1 0.2%
Oxide 1 0.2%
P-value 1 0.2%
Packstation 1 0.2%
Pan-European Pension 1 0.2%
Pandemic 1 0.2%
Parent–teacher association 1 0.2%
Pareto distribution 1 0.2%
Park View (Washington, D.C.) 1 0.2%
Parking meter 1 0.2%
Parklet 1 0.2%
Passenger rail transport 1 0.2%
Passing lane 1 0.2%
Passive management 1 0.2%
Paterson Plank Road 1 0.2%
Patient 1 0.2%
Paul Krugman 1 0.2%
Payload 1 0.2%
Payment system 1 0.2%
Pedelec 1 0.2%
Pennsylvania Turnpike 1 0.2%
Perception 1 0.2%
Personal Responsibility and Work Opportunity Act 1 0.2%
Personal data 1 0.2%
Pete Buttigieg 1 0.2%
Phencyclidine 1 0.2%
Photovoltaic thermal hybrid solar collector 1 0.2%
Physical design (electronics) 1 0.2%
Physics 1 0.2%
Piracy 1 0.2%
Piston 1 0.2%
PlaNYC 1 0.2%
Planetary boundaries 1 0.2%
Plaster 1 0.2%
Plastic 1 0.2%
Poaching 1 0.2%
Polymer 1 0.2%
Polyvinyl chloride 1 0.2%
Population ageing 1 0.2%
Population density 1 0.2%
Port of Baku 1 0.2%
Port of Boston 1 0.2%
Port of Cork 1 0.2%
Port of Hueneme 1 0.2%
Port of Melbourne 1 0.2%
Porter's five forces analysis 1 0.2%
Poverty in the United States 1 0.2%
Pre-kindergarten 1 0.2%
Precautionary principle 1 0.2%
Precipitation 1 0.2%
Precision agriculture 1 0.2%
Pressurized water reactor 1 0.2%
Prestressed concrete 1 0.2%
Price discrimination 1 0.2%
Price floor 1 0.2%
Price-cap regulation 1 0.2%
Pricing strategies 1 0.2%
Princes Freeway 1 0.2%
Printer (computing) 1 0.2%
Private equity secondary market 1 0.2%
Private finance initiative 1 0.2%
Private pension 1 0.2%
Private transport 1 0.2%
Probability 1 0.2%
Probability distribution 1 0.2%
Probability of default 1 0.2%
Probit 1 0.2%
Probit model 1 0.2%
Product differentiation 1 0.2%
Product liability 1 0.2%
Program evaluation 1 0.2%
Propane 1 0.2%
Propeller 1 0.2%
Property insurance 1 0.2%
Protected area 1 0.2%
Provinces and territories of Canada 1 0.2%
Public schemes for energy efficient refurbishment 1 0.2%
Public works ministries 1 0.2%
Public-key cryptography 1 0.2%
Puerto Rico 1 0.2%
Purple Line (Maryland) 1 0.2%
Quantity 1 0.2%
Quasi-experiment 1 0.2%
Queen Elizabeth Olympic Park 1 0.2%
Queensferry Crossing 1 0.2%
Questionnaire 1 0.2%
Q–Q plot 1 0.2%
Race and ethnicity in the United States 1 0.2%
Racial segregation 1 0.2%
Racial segregation in the United States 1 0.2%
Radio-frequency identification 1 0.2%
Radioactive waste 1 0.2%
Rail Baltica 1 0.2%
Rail Safety Improvement Act of 2008 1 0.2%
Rail trail 1 0.2%
Railroad car 1 0.2%
Railroad tie 1 0.2%
Railway companies of Japan 1 0.2%
Railway safety 1 0.2%
Railway signalling 1 0.2%
Randolph Road 1 0.2%
Random forest 1 0.2%
Randomized controlled trial 1 0.2%
Range extender (vehicle) 1 0.2%
Rapibus 1 0.2%
Raritan River 1 0.2%
Readville station 1 0.2%
Real interest rate 1 0.2%
Real-time computing 1 0.2%
Rebate (marketing) 1 0.2%
Recreation 1 0.2%
Recruitment 1 0.2%
Rectifier 1 0.2%
Refrigerant 1 0.2%
Refrigeration 1 0.2%
Regulation of greenhouse gases under the Clean Air Act 1 0.2%
Renewable energy transition 1 0.2%
Renewable heat 1 0.2%
Renovation 1 0.2%
Rent regulation 1 0.2%
Rental Assistance Demonstration 1 0.2%
Reputation 1 0.2%
Research Triangle 1 0.2%
Residential area 1 0.2%
Resource curse 1 0.2%
Rest area 1 0.2%
Restaurant 1 0.2%
Restriction of Hazardous Substances Directive 1 0.2%
Reuse 1 0.2%
Revenue bond 1 0.2%
Rhine–Main–Danube Canal 1 0.2%
Right to food 1 0.2%
Risk aversion 1 0.2%
Risk-free interest rate 1 0.2%
River Rouge (Michigan) 1 0.2%
Road traffic control 1 0.2%
Robust decision-making 1 0.2%
Rocket 1 0.2%
Rolling resistance 1 0.2%
Rolling stock 1 0.2%
Rounding 1 0.2%
Royal Borough of Kensington and Chelsea 1 0.2%
Royal assent 1 0.2%
Russia in the European energy sector 1 0.2%
Russification of Finland 1 0.2%
Réseau express métropolitain 1 0.2%
SAE J1772 1 0.2%
Sagar Mala project 1 0.2%
Saginaw, Michigan 1 0.2%
Salary 1 0.2%
Sample mean and covariance 1 0.2%
Samson and Goliath (cranes) 1 0.2%
San Antonio River Walk 1 0.2%
San Francisco–Oakland Bay Bridge 1 0.2%
San Joaquin Valley 1 0.2%
San José, Costa Rica 1 0.2%
Sanctions against Iran 1 0.2%
Sanitary sewer overflow 1 0.2%
Santa Clara County, California 1 0.2%
Saving 1 0.2%
Scalability 1 0.2%
School voucher 1 0.2%
Scientific method 1 0.2%
Scrappage program 1 0.2%
Second Industrial Revolution 1 0.2%
Second law of thermodynamics 1 0.2%
Secondary suite 1 0.2%
Security token 1 0.2%
Seismic retrofit 1 0.2%
Self-care 1 0.2%
Self-insurance 1 0.2%
Semi-trailer 1 0.2%
Sentiment analysis 1 0.2%
Serious game 1 0.2%
Service (economics) 1 0.2%
Severe acute respiratory syndrome coronavirus 2 1 0.2%
Severn Barrage 1 0.2%
Severn Estuary 1 0.2%
Severn Tidal Power Feasibility Study 1 0.2%
Seward Highway 1 0.2%
Shadow banking system 1 0.2%
Shale gas 1 0.2%
Shannon Airport 1 0.2%
Share taxi 1 0.2%
Shared lane marking 1 0.2%
Shepparton 1 0.2%
Sherman Heights, San Diego 1 0.2%
Shinkansen 1 0.2%
Shotton railway station 1 0.2%
Signage 1 0.2%
Signal passed at danger 1 0.2%
Signal timing 1 0.2%
Significant figures 1 0.2%
Silver Line (Washington Metro) 1 0.2%
Singapore Area Licensing Scheme 1 0.2%
Singaporean nationality law 1 0.2%
Single European Sky 1 0.2%
Sisters' Islands Marine Park 1 0.2%
Situation awareness 1 0.2%
Skewness 1 0.2%
Skyactiv 1 0.2%
Small business 1 0.2%
Smart card 1 0.2%
Smart lighting 1 0.2%
Smart port 1 0.2%
Smart thermostat 1 0.2%
Smelting 1 0.2%
Snow 1 0.2%
Snow removal 1 0.2%
Social capital 1 0.2%
Social determinants of health 1 0.2%
Social distancing 1 0.2%
Social isolation 1 0.2%
Social market economy 1 0.2%
Social network 1 0.2%
Social protection 1 0.2%
Socioeconomic status 1 0.2%
Sociotechnical system 1 0.2%
Software 1 0.2%
Soil 1 0.2%
Solar lamp 1 0.2%
Solar water heating 1 0.2%
Solvency II 1 0.2%
Sonoma–Marin Area Rail Transit 1 0.2%
South America 1 0.2%
South East Queensland 1 0.2%
South End, Boston 1 0.2%
South Lake Union, Seattle 1 0.2%
South Wales 1 0.2%
South Wales Main Line 1 0.2%
South Wales Metro 1 0.2%
Southcrest, San Diego 1 0.2%
Southern Gas Corridor 1 0.2%
Southern United States 1 0.2%
Southwest Power Pool 1 0.2%
Space heater 1 0.2%
Spaceflight 1 0.2%
Special Report on Emissions Scenarios 1 0.2%
Special Report on Global Warming of 1.5 °C 1 0.2%
Special education 1 0.2%
Special member state territories and the European Union 1 0.2%
Special-purpose acquisition company 1 0.2%
Stadthaus 1 0.2%
Stagflation 1 0.2%
Staggers Rail Act 1 0.2%
Standby power 1 0.2%
Stationary process 1 0.2%
Statistic 1 0.2%
Steelmaking 1 0.2%
Sterling Highway 1 0.2%
Stevens Creek (California) 1 0.2%
Stock exchange 1 0.2%
Stock market 1 0.2%
Stop sign 1 0.2%
Stranded asset 1 0.2%
Stratford, London 1 0.2%
Stress (mechanics) 1 0.2%
Stress testing 1 0.2%
Subordinated debt 1 0.2%
Subscription business model 1 0.2%
Sullivan Square 1 0.2%
Sullivan Square station 1 0.2%
Sungei Buloh Wetland Reserve 1 0.2%
Super grid 1 0.2%
Supercharger 1 0.2%
Supercritical carbon dioxide 1 0.2%
Superfund 1 0.2%
Supply chain management 1 0.2%
Surface roughness 1 0.2%
Surveying 1 0.2%
Sustainable Communities and Climate Protection Act of 2008 1 0.2%
Sustainable Development Goal 11 1 0.2%
Sustainable Development Goal 12 1 0.2%
Sustainable Development Goal 3 1 0.2%
Sustainable Development Goal 6 1 0.2%
Sustainable business 1 0.2%
Swansea 1 0.2%
Swansea railway station 1 0.2%
Switching barriers 1 0.2%
Sydney Coordinated Adaptive Traffic System 1 0.2%
Synergy 1 0.2%
System dynamics 1 0.2%
System of National Accounts 1 0.2%
Systems theory 1 0.2%
TRAX (light rail) 1 0.2%
Tachograph 1 0.2%
Tank car 1 0.2%
Tax deduction 1 0.2%
Tax exemption 1 0.2%
Tax refund 1 0.2%
Taxicabs of the United Kingdom 1 0.2%
Taxis of New York City 1 0.2%
Taxpayer 1 0.2%
Taxpayer Bill of Rights 1 0.2%
Team 1 0.2%
Technological change 1 0.2%
Technological transitions 1 0.2%
Telehealth 1 0.2%
Tenerife 1 0.2%
Tennessee State Route 386 1 0.2%
Term life insurance 1 0.2%
Terraced house 1 0.2%
Terrorism financing 1 0.2%
Tertiary sector of the economy 1 0.2%
Tesla Autopilot 1 0.2%
Tesla Supercharger 1 0.2%
Texas State Highway 130 1 0.2%
Text messaging 1 0.2%
Tf–idf 1 0.2%
Thai Canal 1 0.2%
The Avenues, Salt Lake City 1 0.2%
The Green Deal 1 0.2%
The Ride (MBTA) 1 0.2%
Theory of change 1 0.2%
Thermal efficiency 1 0.2%
Thermal insulation 1 0.2%
Third rail 1 0.2%
Threat model 1 0.2%
Throttle 1 0.2%
Tidal barrage 1 0.2%
Tijuana River 1 0.2%
Time Sharing Option 1 0.2%
Tire 1 0.2%
Tire recycling 1 0.2%
Tire-pressure monitoring system 1 0.2%
Titanic Quarter 1 0.2%
Tokenization (data security) 1 0.2%
Toll roads in Texas 1 0.2%
Tomato 1 0.2%
Tonne 1 0.2%
Top-down and bottom-up design 1 0.2%
Topic model 1 0.2%
Total fertility rate 1 0.2%
Tottenham 1 0.2%
Toyota Camry 1 0.2%
Toyota Mirai 1 0.2%
Toyota Prius Plug-in Hybrid 1 0.2%
Track (rail transport) 1 0.2%
Track geometry car 1 0.2%
Trade agreement 1 0.2%
Trade facilitation 1 0.2%
Traditional Chinese medicine 1 0.2%
Traffic barrier 1 0.2%
Traffic enforcement camera 1 0.2%
Train Protection & Warning System 1 0.2%
Train stop 1 0.2%
Train-related introductions 1 0.2%
Training 1 0.2%
Trans-African Highway network 1 0.2%
Trans-Texas Corridor 1 0.2%
Transit bus 1 0.2%
Transition economy 1 0.2%
Transport economics 1 0.2%
Triple bottom line 1 0.2%
Tropospheric ozone 1 0.2%
Troubled Asset Relief Program 1 0.2%
Trust (social science) 1 0.2%
Trust law 1 0.2%
Tunnel boring machine 1 0.2%
TurkStream 1 0.2%
Two-part tariff 1 0.2%
Two-stroke engine 1 0.2%
Types of concrete 1 0.2%
U-turn 1 0.2%
U.S. Route 1 in Florida 1 0.2%
U.S. Route 1 in Massachusetts 1 0.2%
U.S. Route 202 in New Jersey 1 0.2%
U.S. Route 220 1 0.2%
U.S. Route 31A 1 0.2%
U.S. Route 322 in New Jersey 1 0.2%
U.S. Route 395 in California 1 0.2%
U.S. Route 41 in Georgia 1 0.2%
U.S. Route 9 in New Jersey 1 0.2%
Ukraine–European Union Association Agreement 1 0.2%
Unconventional oil 1 0.2%
Unfair dismissal in the United Kingdom 1 0.2%
University Heights, San Diego 1 0.2%
Uptown Houston 1 0.2%
Uptown, Dallas 1 0.2%
Uranium mining 1 0.2%
Urban density 1 0.2%
Urban enterprise zone 1 0.2%
Urban geography 1 0.2%
Urban runoff 1 0.2%
Valletta 1 0.2%
Value at risk 1 0.2%
Value of life 1 0.2%
Variable compression ratio 1 0.2%
Variable displacement 1 0.2%
Vector autoregression 1 0.2%
Vector space 1 0.2%
Vegetable 1 0.2%
Vehicle electrification 1 0.2%
Vehicle for hire 1 0.2%
Vehicle insurance 1 0.2%
Verification and validation 1 0.2%
Vickrey auction 1 0.2%
Victoria (District Electoral Area) 1 0.2%
Village 1 0.2%
Violence 1 0.2%
Virtual reality 1 0.2%
Voice vote 1 0.2%
Volatility (finance) 1 0.2%
Volt-ampere 1 0.2%
Volunteering 1 0.2%
Vulnerability 1 0.2%
Wage 1 0.2%
WannaCry ransomware attack 1 0.2%
Warner Center, Los Angeles 1 0.2%
Warning sign 1 0.2%
Washing machine 1 0.2%
Washington State Route 99 1 0.2%
Washington Street (Boston) 1 0.2%
Wassily Leontief 1 0.2%
Waste Electrical and Electronic Equipment Directive 1 0.2%
Water conservation 1 0.2%
Water pollution 1 0.2%
Water tariff 1 0.2%
Water vapor 1 0.2%
Web of Science 1 0.2%
Weighted arithmetic mean 1 0.2%
Weighted average cost of capital 1 0.2%
West Gate Tunnel 1 0.2%
West Hills, Los Angeles 1 0.2%
West Side, Chicago 1 0.2%
Whistleblower 1 0.2%
White Americans 1 0.2%
White certificates 1 0.2%
Wind 1 0.2%
Winston Churchill 1 0.2%
Wood 1 0.2%
Workforce Innovation and Opportunity Act 1 0.2%
Workforce Investment Act of 1998 1 0.2%
Workforce housing 1 0.2%
Working time 1 0.2%
World 1 0.2%
World Energy Outlook 1 0.2%
World Inequality Report 1 0.2%
World population 1 0.2%
Worldwide harmonized light vehicles test procedure 1 0.2%
Wrexham 1 0.2%
Youth 1 0.2%
ZoneCard 1 0.2%

wikitags: per year

1995

abs rel
Asphalt concrete 1 100.0%
CANAMEX Corridor 1 100.0%
Clean Air Act of 1963 1 100.0%
Crumb rubber 1 100.0%
Debt 1 100.0%
Federal Bridge Gross Weight Formula 1 100.0%
Highway 1 100.0%
Human activities 1 100.0%
Land transport 1 100.0%
Loan 1 100.0%
New Jersey Turnpike 1 100.0%
Pennsylvania Turnpike 1 100.0%
Road surface 1 100.0%
Road transport 1 100.0%
Tax 1 100.0%
Toll road 1 100.0%
Transport 1 100.0%
U.S. Route 220 1 100.0%
U.S. state 1 100.0%
United States Code 1 100.0%

1998

abs rel
Economy 2 100.0%
Government budget balance 2 100.0%
Highway 2 100.0%
Highway Trust Fund 2 100.0%
Human activities 2 100.0%
Infrastructure 2 100.0%
Tax 2 100.0%
U.S. state 2 100.0%
Advisory board 1 50.0%
Air traffic control 1 50.0%
Airport 1 50.0%
Alcohol intoxication 1 50.0%
Appropriations bill (United States) 1 50.0%
Automotive lighting 1 50.0%
Bank 1 50.0%
Bill (law) 1 50.0%
Bill Clinton 1 50.0%
Blood alcohol content 1 50.0%
Bond (finance) 1 50.0%
Car 1 50.0%
Clean Air Act of 1963 1 50.0%
Competition (companies) 1 50.0%
Credit 1 50.0%
Debt 1 50.0%
Deficit spending 1 50.0%
Driving under the influence 1 50.0%
Employment 1 50.0%
Environmental protection 1 50.0%
Golf cart 1 50.0%
Government 1 50.0%
Innovation 1 50.0%
Loan 1 50.0%
Low-speed vehicle 1 50.0%
Metropolitan planning organization 1 50.0%
PAYGO 1 50.0%
Personal Responsibility and Work Opportunity Act 1 50.0%
Plug-in electric vehicle 1 50.0%
Pollution 1 50.0%
Public transport 1 50.0%
Rail transport 1 50.0%
Research 1 50.0%
Risk 1 50.0%
Road traffic safety 1 50.0%
Safety 1 50.0%
Seat belt 1 50.0%
Securitization 1 50.0%
Tax refund 1 50.0%
Taxpayer 1 50.0%
Technology 1 50.0%
Traffic 1 50.0%
Traffic collision 1 50.0%
Transport 1 50.0%
United States Code 1 50.0%
Vehicle 1 50.0%
Welfare 1 50.0%

2002

abs rel
Economy 3 75.0%
Human activities 3 75.0%
Rail transport 3 75.0%
Transport 3 75.0%
Air pollution 2 50.0%
Car 2 50.0%
Cargo 2 50.0%
Economics 2 50.0%
Engine 2 50.0%
Exhaust gas 2 50.0%
Logistics 2 50.0%
Pollution 2 50.0%
Public transport 2 50.0%
Rail freight transport 2 50.0%
Research 2 50.0%
Road 2 50.0%
Sustainability 2 50.0%
Technology 2 50.0%
Benefit–cost ratio 1 25.0%
Carbon 1 25.0%
Carbon dioxide 1 25.0%
Carbon monoxide 1 25.0%
Computer program 1 25.0%
Cost 1 25.0%
Cost-effectiveness analysis 1 25.0%
Cost–benefit analysis 1 25.0%
Database 1 25.0%
Decision-making 1 25.0%
Diesel engine 1 25.0%
Discounted cash flow 1 25.0%
Discounting 1 25.0%
Driving 1 25.0%
Dynamometer 1 25.0%
Economic growth 1 25.0%
Europe 1 25.0%
Evaluation 1 25.0%
Externality 1 25.0%
Failure rate 1 25.0%
Fuel economy in automobiles 1 25.0%
Globalization 1 25.0%
Goal 1 25.0%
Gross domestic product 1 25.0%
High-occupancy vehicle lane 1 25.0%
Highway 1 25.0%
Incoterms 1 25.0%
Infrared 1 25.0%
Infrastructure 1 25.0%
Inspection 1 25.0%
Intelligent transportation system 1 25.0%
Interchange (road) 1 25.0%
Intermodal passenger transport 1 25.0%
International trade 1 25.0%
Intersection (road) 1 25.0%
Inventory 1 25.0%
Liquefied petroleum gas 1 25.0%
Market (economics) 1 25.0%
Mathematical optimization 1 25.0%
Matrix (mathematics) 1 25.0%
Metropolitan planning organization 1 25.0%
Mode (statistics) 1 25.0%
Money 1 25.0%
Multimodal distribution 1 25.0%
Multimodal interaction 1 25.0%
Multimodality 1 25.0%
NOx 1 25.0%
Natural gas 1 25.0%
Net present value 1 25.0%
On-board diagnostics 1 25.0%
Particulates 1 25.0%
Poverty 1 25.0%
Present value 1 25.0%
Remote sensing 1 25.0%
Risk 1 25.0%
Road traffic safety 1 25.0%
Safety 1 25.0%
Sensitivity analysis 1 25.0%
Service industries 1 25.0%
Short-sea shipping 1 25.0%
State Implementation Plan 1 25.0%
Statistics 1 25.0%
System 1 25.0%
Taxpayer Bill of Rights 1 25.0%
Telematics 1 25.0%
Time 1 25.0%
Traffic 1 25.0%
Traffic collision 1 25.0%
Trans-European Transport Network 1 25.0%
Transportation demand management 1 25.0%
Transportation planning 1 25.0%
Truck 1 25.0%
Vehicle 1 25.0%
Vehicle emissions control 1 25.0%
Volatile organic compound 1 25.0%
Water 1 25.0%

2004

abs rel
Air pollution 1 100.0%
Best management practice for water pollution 1 100.0%
Bioretention 1 100.0%
CMAQ 1 100.0%
Cargo 1 100.0%
Clean Air Act of 1963 1 100.0%
Clean Water Act 1 100.0%
Construction 1 100.0%
Design 1 100.0%
Environmental impact assessment 1 100.0%
Groundwater 1 100.0%
Groundwater recharge 1 100.0%
High-occupancy vehicle lane 1 100.0%
Highway 1 100.0%
Human activities 1 100.0%
Infiltration (hydrology) 1 100.0%
Metropolitan planning organization 1 100.0%
National Ambient Air Quality Standards 1 100.0%
National Environmental Policy Act 1 100.0%
Ozone 1 100.0%
Particulates 1 100.0%
Permeable paving 1 100.0%
Pollution 1 100.0%
Road 1 100.0%
Road pricing 1 100.0%
Road traffic safety 1 100.0%
Safety 1 100.0%
Stormwater 1 100.0%
Surface runoff 1 100.0%
Tax 1 100.0%
Toll road 1 100.0%
Traditional Chinese medicine 1 100.0%
Traffic 1 100.0%
Transport 1 100.0%
Transportation planning 1 100.0%
U.S. state 1 100.0%
United States Code 1 100.0%
Water pollution 1 100.0%
Wetland 1 100.0%

2005

abs rel
Human activities 6 85.7%
Tax 6 85.7%
Transport 6 85.7%
Economy 5 71.4%
Cost–benefit analysis 4 57.1%
Economics 4 57.1%
Greenhouse gas 4 57.1%
Gross domestic product 4 57.1%
Productivity 4 57.1%
Road pricing 4 57.1%
Artificial objects 3 42.9%
Audit 3 42.9%
Best practice 3 42.9%
Car 3 42.9%
Competition 3 42.9%
Congestion pricing 3 42.9%
Construction 3 42.9%
Cost-effectiveness analysis 3 42.9%
Economic efficiency 3 42.9%
Economic interventionism 3 42.9%
Efficient energy use 3 42.9%
Electric power transmission 3 42.9%
Electricity generation 3 42.9%
Energy 3 42.9%
Energy conservation 3 42.9%
Energy demand management 3 42.9%
Energy efficiency gap 3 42.9%
Evaluation 3 42.9%
Externality 3 42.9%
Fuel efficiency 3 42.9%
Highway 3 42.9%
Incentive 3 42.9%
Market (economics) 3 42.9%
Market failure 3 42.9%
Policy 3 42.9%
Rebound effect (conservation) 3 42.9%
Refrigerator 3 42.9%
Resource 3 42.9%
Risk 3 42.9%
Road 3 42.9%
Subsidy 3 42.9%
Technology 3 42.9%
Traffic 3 42.9%
Welfare 3 42.9%
World energy consumption 3 42.9%
Business 2 28.6%
Demand 2 28.6%
Economic growth 2 28.6%
Fossil fuel 2 28.6%
Gasoline 2 28.6%
High-occupancy vehicle lane 2 28.6%
Income 2 28.6%
Metropolitan planning organization 2 28.6%
National Environmental Policy Act 2 28.6%
Petroleum 2 28.6%
Price 2 28.6%
Public transport 2 28.6%
Road traffic safety 2 28.6%
Toll road 2 28.6%
Traffic congestion 2 28.6%
U.S. state 2 28.6%
Air conditioning 1 14.3%
Air pollution 1 14.3%
Annual average daily traffic 1 14.3%
Brownfield land 1 14.3%
Bypass (road) 1 14.3%
CMAQ 1 14.3%
Capital (economics) 1 14.3%
Carbon dioxide 1 14.3%
Clean Air Act of 1963 1 14.3%
Clean Water Act 1 14.3%
Climate change 1 14.3%
Coal 1 14.3%
Commercial driver's license 1 14.3%
Common carrier 1 14.3%
Constant elasticity of substitution 1 14.3%
Consumption (economics) 1 14.3%
Controlled-access highway 1 14.3%
Dangerous goods 1 14.3%
De-icing 1 14.3%
Demography 1 14.3%
Driver's license 1 14.3%
Economic development 1 14.3%
Economic equilibrium 1 14.3%
Economic sectors 1 14.3%
Economics of climate change mitigation 1 14.3%
Economy of the United States 1 14.3%
Efficiency 1 14.3%
Elasticity (economics) 1 14.3%
Electricity 1 14.3%
Electricity pricing 1 14.3%
Emission intensity 1 14.3%
Emissions trading 1 14.3%
Employment 1 14.3%
Energy development 1 14.3%
Energy industry 1 14.3%
Energy policy 1 14.3%
Energy policy of the United States 1 14.3%
Energy service company 1 14.3%
Energy system 1 14.3%
Energy transformation 1 14.3%
Environmental impact assessment 1 14.3%
Excise 1 14.3%
Fuel 1 14.3%
Fuel economy in automobiles 1 14.3%
Fuel tax 1 14.3%
General equilibrium theory 1 14.3%
Goal 1 14.3%
Goods 1 14.3%
Greenhouse gas emissions 1 14.3%
HVAC 1 14.3%
Hours of service 1 14.3%
Indian reservation 1 14.3%
Innovation 1 14.3%
Input–output model 1 14.3%
Interchange (road) 1 14.3%
Interstate 465 1 14.3%
Interstate 65 1 14.3%
Interstate 69 in Indiana 1 14.3%
Interstate 70 in Indiana 1 14.3%
Kilowatt hour 1 14.3%
Labour economics 1 14.3%
Land transport 1 14.3%
Level of service 1 14.3%
Mathematical optimization 1 14.3%
Microeconomics 1 14.3%
Minutes 1 14.3%
National Income and Product Accounts 1 14.3%
Natural gas 1 14.3%
Nature 1 14.3%
Net present value 1 14.3%
Oil refinery 1 14.3%
Overlapping generations model 1 14.3%
Ozone 1 14.3%
Particulates 1 14.3%
Pollution 1 14.3%
Price elasticity of demand 1 14.3%
Pricing 1 14.3%
Primary energy 1 14.3%
Production (economics) 1 14.3%
Production function 1 14.3%
Public good 1 14.3%
Rail transport 1 14.3%
Regulation 1 14.3%
Regulatory compliance 1 14.3%
Renewable energy 1 14.3%
Retail 1 14.3%
Rush hour 1 14.3%
Safety 1 14.3%
Solar power 1 14.3%
Special Report on Emissions Scenarios 1 14.3%
State Implementation Plan 1 14.3%
Stormwater 1 14.3%
Tariff 1 14.3%
Tourism 1 14.3%
Transportation planning 1 14.3%
U.S. Route 31 1 14.3%
Unemployment 1 14.3%
United States Code 1 14.3%
United States congressional apportionment 1 14.3%
Utility 1 14.3%
Water heating 1 14.3%
Wealth 1 14.3%
Wetland 1 14.3%
Wind power 1 14.3%

2006

abs rel
Automotive industry 1 100.0%
Automotive industry in the United States 1 100.0%
Big Three (automobile manufacturers) 1 100.0%
Business 1 100.0%
Car 1 100.0%
Corporate average fuel economy 1 100.0%
Economy 1 100.0%
Efficient energy use 1 100.0%
Employment 1 100.0%
Human activities 1 100.0%
Pickup truck 1 100.0%
Powertrain 1 100.0%
Self-driving car 1 100.0%
Technology 1 100.0%
Transport 1 100.0%
Troubled Asset Relief Program 1 100.0%
Vehicles 1 100.0%

2007

abs rel
Economy 3 100.0%
Highway 3 100.0%
Human activities 3 100.0%
Infrastructure 3 100.0%
Traffic congestion 3 100.0%
Transport 3 100.0%
Cargo 2 66.7%
Competition (economics) 2 66.7%
Economic impact analysis 2 66.7%
Economics 2 66.7%
Income 2 66.7%
Investment 2 66.7%
Market (economics) 2 66.7%
Personal income 2 66.7%
Public transport 2 66.7%
Public–private partnership 2 66.7%
Rail transport 2 66.7%
Road 2 66.7%
Accessibility 1 33.3%
Air pollution 1 33.3%
Asset 1 33.3%
Bus 1 33.3%
Business 1 33.3%
Commodity 1 33.3%
Computable general equilibrium 1 33.3%
Constitution of Texas 1 33.3%
Construction 1 33.3%
Consumption (economics) 1 33.3%
Controlled-access highway 1 33.3%
Cycling infrastructure 1 33.3%
Demand 1 33.3%
Economic growth 1 33.3%
Economic model 1 33.3%
Employment 1 33.3%
Fair Labor Standards Act of 1938 1 33.3%
Goal 1 33.3%
Government spending 1 33.3%
Gross domestic product 1 33.3%
Interstate 69 in Texas 1 33.3%
Labour economics 1 33.3%
Leverage (finance) 1 33.3%
Metro Detroit 1 33.3%
Michigan State Trunkline Highway System 1 33.3%
Modernization theory 1 33.3%
National Environmental Policy Act 1 33.3%
Overtime 1 33.3%
Pedestrian 1 33.3%
Policy 1 33.3%
Road surface 1 33.3%
Service industries 1 33.3%
Shoulder (road) 1 33.3%
Simulation 1 33.3%
Supply (economics) 1 33.3%
Supply and demand 1 33.3%
Sustainability 1 33.3%
System 1 33.3%
Tax 1 33.3%
Texas State Highway 130 1 33.3%
Toll road 1 33.3%
Toll roads in Texas 1 33.3%
Traffic 1 33.3%
Trans-Texas Corridor 1 33.3%
Transport network analysis 1 33.3%
Truck 1 33.3%

2008

abs rel
Demand 2 66.7%
Electric power transmission 2 66.7%
Electrical grid 2 66.7%
Risk 2 66.7%
Simulation 2 66.7%
Wind power 2 66.7%
Asphalt concrete 1 33.3%
Autocorrelation 1 33.3%
Backward induction 1 33.3%
Behavior 1 33.3%
Car 1 33.3%
Carbon dioxide 1 33.3%
Cement 1 33.3%
Climate change 1 33.3%
Climate change mitigation 1 33.3%
Cogeneration 1 33.3%
Collaboration 1 33.3%
Competition 1 33.3%
Concrete 1 33.3%
Construction 1 33.3%
Contract for difference 1 33.3%
Correlation and dependence 1 33.3%
Covariance matrix 1 33.3%
Demand curve 1 33.3%
Economic equilibrium 1 33.3%
Economics 1 33.3%
Economy 1 33.3%
Efficient energy use 1 33.3%
Elasticity (economics) 1 33.3%
Electricity generation 1 33.3%
Electricity pricing 1 33.3%
Energy 1 33.3%
Errors and residuals 1 33.3%
European Union Emission Trading Scheme 1 33.3%
Feed-in tariff 1 33.3%
Fly ash 1 33.3%
Fuel 1 33.3%
Fuel efficiency 1 33.3%
Generalized method of moments 1 33.3%
Global Warming Solutions Act of 2006 1 33.3%
Greenhouse gas 1 33.3%
Highway 1 33.3%
Human activities 1 33.3%
Hydroelectricity 1 33.3%
Imperfect competition 1 33.3%
Infrastructure 1 33.3%
Instrumental variables estimation 1 33.3%
Intelligent transportation system 1 33.3%
Interest 1 33.3%
Interest rate 1 33.3%
Kilowatt-hour 1 33.3%
Life-cycle assessment 1 33.3%
Long run and short run 1 33.3%
Market (economics) 1 33.3%
Market power 1 33.3%
Markov decision process 1 33.3%
Mathematical optimization 1 33.3%
Matrix (mathematics) 1 33.3%
Mean 1 33.3%
Microeconomics 1 33.3%
Monopoly 1 33.3%
Nature 1 33.3%
Non-Fossil Fuel Obligation 1 33.3%
Nordic countries 1 33.3%
Nuclear power 1 33.3%
Oligopoly 1 33.3%
Ordinary least squares 1 33.3%
Parameter 1 33.3%
Pollution 1 33.3%
Power station 1 33.3%
Prediction 1 33.3%
Price 1 33.3%
Probability distribution 1 33.3%
Public transport 1 33.3%
Public–private partnership 1 33.3%
Radio-frequency identification 1 33.3%
Ramp meter 1 33.3%
Recycling 1 33.3%
Regression analysis 1 33.3%
Reliability engineering 1 33.3%
Renewable energy 1 33.3%
Renewables Obligation (United Kingdom) 1 33.3%
Research 1 33.3%
Research and development 1 33.3%
Reservoir 1 33.3%
Road 1 33.3%
Road pricing 1 33.3%
Road surface 1 33.3%
Sample mean and covariance 1 33.3%
Severn Barrage 1 33.3%
Severn Estuary 1 33.3%
Severn Tidal Power Feasibility Study 1 33.3%
Skewness 1 33.3%
Standard deviation 1 33.3%
Stationary process 1 33.3%
Statistic 1 33.3%
Statistics 1 33.3%
Stock 1 33.3%
Subsidy 1 33.3%
Supply (economics) 1 33.3%
Supply and demand 1 33.3%
Sustainability 1 33.3%
Tax 1 33.3%
Technology 1 33.3%
Thermal power station 1 33.3%
Tidal barrage 1 33.3%
Tire 1 33.3%
Tire recycling 1 33.3%
Toll road 1 33.3%
Traffic 1 33.3%
Traffic congestion 1 33.3%
Traffic light 1 33.3%
Traffic simulation 1 33.3%
Transport 1 33.3%
Types of concrete 1 33.3%
United States vehicle emission standards 1 33.3%
Variance 1 33.3%
Vehicle 1 33.3%
Waste 1 33.3%
Water 1 33.3%

2009

abs rel
Human activities 6 85.7%
Transport 6 85.7%
Economy 4 57.1%
Efficient energy use 4 57.1%
Fuel 4 57.1%
Greenhouse gas 4 57.1%
Traffic congestion 4 57.1%
Air pollution 3 42.9%
Climate change 3 42.9%
Construction 3 42.9%
Fuel economy in automobiles 3 42.9%
Highway 3 42.9%
Infrastructure 3 42.9%
Nature 3 42.9%
Road transport 3 42.9%
Sustainability 3 42.9%
Vehicle 3 42.9%
Car 2 28.6%
Cargo 2 28.6%
Civil engineering 2 28.6%
Controlled-access highway 2 28.6%
Economic growth 2 28.6%
Fuel efficiency 2 28.6%
Hybrid vehicle 2 28.6%
Interstate 35W (Minnesota) 2 28.6%
Interstate 694 2 28.6%
Interstate 94 in Minnesota 2 28.6%
Land transport 2 28.6%
National Bridge Inventory 2 28.6%
Plug-in hybrid 2 28.6%
Rail transport 2 28.6%
Renewable energy 2 28.6%
Road 2 28.6%
Road infrastructure 2 28.6%
Road traffic safety 2 28.6%
Semi-trailer truck 2 28.6%
Sustainable energy 2 28.6%
Sustainable transport 2 28.6%
Technology 2 28.6%
Traffic 2 28.6%
Transport infrastructure 2 28.6%
Transportation engineering 2 28.6%
Truck 2 28.6%
Vehicle technology 2 28.6%
Vehicles 2 28.6%
Aerodynamics 1 14.3%
Automobile drag coefficient 1 14.3%
Automotive engineering 1 14.3%
BMW X6 1 14.3%
Battery electric vehicle 1 14.3%
Best practice 1 14.3%
Biodiesel 1 14.3%
Biofuel 1 14.3%
Brake 1 14.3%
Bus 1 14.3%
Business 1 14.3%
Carbon dioxide 1 14.3%
Carbon offset 1 14.3%
Carbon price 1 14.3%
Carbon tax 1 14.3%
Climate change mitigation 1 14.3%
Coal 1 14.3%
Collision avoidance system 1 14.3%
Combustion 1 14.3%
Common ethanol fuel mixtures 1 14.3%
Community 1 14.3%
Competition (companies) 1 14.3%
Computer network 1 14.3%
Concrete 1 14.3%
Congestion pricing 1 14.3%
Consumption (economics) 1 14.3%
Context-sensitive solutions 1 14.3%
Cost–benefit analysis 1 14.3%
Demand 1 14.3%
Diesel engine 1 14.3%
Distracted driving 1 14.3%
Dividend 1 14.3%
Drag (physics) 1 14.3%
Driving 1 14.3%
Driving under the influence 1 14.3%
Earmark (politics) 1 14.3%
Economics 1 14.3%
Electric battery 1 14.3%
Electric vehicle 1 14.3%
Electricity 1 14.3%
Emissions trading 1 14.3%
Employment 1 14.3%
Energy 1 14.3%
Energy efficiency in transport 1 14.3%
Energy industry 1 14.3%
Energy storage 1 14.3%
Engine 1 14.3%
Enlargement of the European Union 1 14.3%
Environmental policy 1 14.3%
Euro 1 14.3%
Europe 1 14.3%
European Union law 1 14.3%
Exhaust gas 1 14.3%
Finance 1 14.3%
Financial crisis of 2007–2008 1 14.3%
Flexible-fuel vehicle 1 14.3%
Fossil fuel 1 14.3%
FreedomCAR and Vehicle Technologies 1 14.3%
Fuel cell 1 14.3%
Fuel cell vehicle 1 14.3%
Gasoline 1 14.3%
Globalization 1 14.3%
Goal 1 14.3%
Gross domestic product 1 14.3%
Health 1 14.3%
Heat of combustion 1 14.3%
Hybrid electric vehicle 1 14.3%
Hybrid vehicle drivetrain 1 14.3%
Hydrogen 1 14.3%
Hydrogen fuel 1 14.3%
Hydrogen vehicle 1 14.3%
Idle reduction 1 14.3%
Innovation 1 14.3%
Intelligent transportation system 1 14.3%
Interest rate 1 14.3%
Internal combustion engine 1 14.3%
James Hansen 1 14.3%
John Christy 1 14.3%
Labour economics 1 14.3%
Land-use planning 1 14.3%
Layoff 1 14.3%
Life-cycle assessment 1 14.3%
Logistics 1 14.3%
Longer Heavier Vehicle 1 14.3%
Low-carbon economy 1 14.3%
Manufactured goods 1 14.3%
Manufacturing 1 14.3%
Market (economics) 1 14.3%
Market liquidity 1 14.3%
Mechanical engineering 1 14.3%
Member state of the European Union 1 14.3%
Metrology 1 14.3%
Mild hybrid 1 14.3%
Mobile phone 1 14.3%
Mobile phones and driving safety 1 14.3%
Mode of transport 1 14.3%
Motor vehicles 1 14.3%
Natural environment 1 14.3%
Natural gas 1 14.3%
Next Generation Air Transportation System 1 14.3%
Nuclear power 1 14.3%
Occupational safety and health 1 14.3%
Option (finance) 1 14.3%
Payload 1 14.3%
Petroleum 1 14.3%
Physical quantities 1 14.3%
Policy 1 14.3%
Powertrain 1 14.3%
Pricing 1 14.3%
Productivity 1 14.3%
Public transport 1 14.3%
Qualitative research 1 14.3%
Quality of life 1 14.3%
Quantitative research 1 14.3%
Quantity 1 14.3%
Recession 1 14.3%
Recycling 1 14.3%
Regenerative brake 1 14.3%
Reliability engineering 1 14.3%
Research 1 14.3%
Research and development 1 14.3%
Road pricing 1 14.3%
Rolling resistance 1 14.3%
Safety 1 14.3%
San Francisco Bay Area 1 14.3%
Semi-trailer 1 14.3%
Smart city 1 14.3%
Solar energy 1 14.3%
Speed limit 1 14.3%
Strategic planning 1 14.3%
Supply chain 1 14.3%
Sustainable community 1 14.3%
System 1 14.3%
Tachograph 1 14.3%
Tax 1 14.3%
Traffic collision 1 14.3%
Triple bottom line 1 14.3%
Trucking industry in the United States 1 14.3%
Turbocharger 1 14.3%
Turnover (employment) 1 14.3%
Unemployment 1 14.3%
Vehicle weight 1 14.3%
Vignette (road tax) 1 14.3%
Waste heat 1 14.3%
Whole-life cost 1 14.3%
Workforce 1 14.3%
Working time 1 14.3%

2010

abs rel
Economy 5 83.3%
Business 3 50.0%
Innovation 3 50.0%
Market (economics) 3 50.0%
Public transport 3 50.0%
Transport 3 50.0%
Carbon capture and storage 2 33.3%
Coal 2 33.3%
Economic development 2 33.3%
Economic growth 2 33.3%
Electricity generation 2 33.3%
Electricity pricing 2 33.3%
Energy 2 33.3%
Energy development 2 33.3%
Energy security 2 33.3%
Governance 2 33.3%
Greenhouse gas 2 33.3%
Gross domestic product 2 33.3%
Human activities 2 33.3%
Infrastructure 2 33.3%
Labour economics 2 33.3%
Low-carbon economy 2 33.3%
Nature 2 33.3%
Nuclear power 2 33.3%
Rail transport 2 33.3%
Renewable energy 2 33.3%
Sustainability 2 33.3%
Traffic 2 33.3%
Accessibility 1 16.7%
Advanced Gas-cooled Reactor 1 16.7%
Affordable housing 1 16.7%
Airport 1 16.7%
American Recovery and Reinvestment Act of 2009 1 16.7%
Audit 1 16.7%
Biomass 1 16.7%
Bridge 1 16.7%
Capital asset pricing model 1 16.7%
Car 1 16.7%
Carbon price 1 16.7%
Carbon pricing in Australia 1 16.7%
Carbon sequestration 1 16.7%
City 1 16.7%
Climate change 1 16.7%
Clothes dryer 1 16.7%
Coal-fired power station 1 16.7%
Cofiring 1 16.7%
Combined cycle power plant 1 16.7%
Communication 1 16.7%
Commuting 1 16.7%
Comparative advantage 1 16.7%
Competition 1 16.7%
Competition (economics) 1 16.7%
Contract for difference 1 16.7%
Cost 1 16.7%
Cost of capital 1 16.7%
Cost of equity 1 16.7%
Cost–benefit analysis 1 16.7%
Debt 1 16.7%
Decarbonisation measures in proposed UK electricity market reform 1 16.7%
Deep geological repository 1 16.7%
Demand 1 16.7%
Deregulation 1 16.7%
Discounting 1 16.7%
Economic equilibrium 1 16.7%
Economic geography 1 16.7%
Economic inequality 1 16.7%
Economics 1 16.7%
Economics of climate change mitigation 1 16.7%
Economies of scale 1 16.7%
Edinburgh 1 16.7%
Education 1 16.7%
Efficient energy use 1 16.7%
Elasticity (economics) 1 16.7%
Electric power 1 16.7%
Electric power transmission 1 16.7%
Electrical grid 1 16.7%
Employment 1 16.7%
Energy industry 1 16.7%
Energy policy of the United States 1 16.7%
Energy production 1 16.7%
Energy technology 1 16.7%
Entrepreneurship 1 16.7%
Environmental impact assessment 1 16.7%
Equity (finance) 1 16.7%
European Union Emission Trading Scheme 1 16.7%
Externality 1 16.7%
Factor market 1 16.7%
Factors of production 1 16.7%
Feed-in tariff 1 16.7%
Finance 1 16.7%
Financial risk 1 16.7%
Force 1 16.7%
Forth Road Bridge 1 16.7%
Fossil fuel 1 16.7%
Fossil fuel power station 1 16.7%
Fuel 1 16.7%
Generation IV reactor 1 16.7%
Globalization 1 16.7%
Golden Horseshoe 1 16.7%
Greater Toronto Area 1 16.7%
High-speed rail 1 16.7%
Human capital 1 16.7%
Human migration 1 16.7%
Hydroelectricity 1 16.7%
Immigration 1 16.7%
Income 1 16.7%
Insurance 1 16.7%
Interurban 1 16.7%
Investment 1 16.7%
Investor 1 16.7%
Kilowatt-hour 1 16.7%
Low-carbon power 1 16.7%
Macroeconomics 1 16.7%
Manufacturing 1 16.7%
Marginal cost 1 16.7%
Microeconomics 1 16.7%
Natural gas 1 16.7%
Non-Fossil Fuel Obligation 1 16.7%
Nuclear Waste Policy Act 1 16.7%
Nuclear fuel cycle 1 16.7%
Nuclear marine propulsion 1 16.7%
Nuclear proliferation 1 16.7%
Nuclear reactor 1 16.7%
Nuclear safety and security 1 16.7%
Nuclear weapon 1 16.7%
Offshore wind power 1 16.7%
Option (finance) 1 16.7%
Paul Krugman 1 16.7%
Perfect competition 1 16.7%
Photovoltaics 1 16.7%
Policy 1 16.7%
Power outage 1 16.7%
Prestressed concrete 1 16.7%
Price 1 16.7%
Productivity 1 16.7%
Profit (economics) 1 16.7%
Project management 1 16.7%
Queensferry Crossing 1 16.7%
Radioactive waste 1 16.7%
Railway electrification system 1 16.7%
Renewables Obligation (United Kingdom) 1 16.7%
Research 1 16.7%
Risk 1 16.7%
Risk-free interest rate 1 16.7%
Science 1 16.7%
Smart grid 1 16.7%
Solar power 1 16.7%
Stock 1 16.7%
Strategic environmental assessment 1 16.7%
Tax 1 16.7%
Technology 1 16.7%
Thin-film solar cell 1 16.7%
Traffic congestion 1 16.7%
Train 1 16.7%
Urban economics 1 16.7%
Value (economics) 1 16.7%
Washing machine 1 16.7%
Waste 1 16.7%
Waste management 1 16.7%
Water heating 1 16.7%
Weighted arithmetic mean 1 16.7%
Weighted average cost of capital 1 16.7%
Wind power 1 16.7%
Yucca Mountain nuclear waste repository 1 16.7%

2011

abs rel
Energy 3 100.0%
Efficient energy use 2 66.7%
Electric battery 2 66.7%
Electric power 2 66.7%
Electrical grid 2 66.7%
Human activities 2 66.7%
Market (economics) 2 66.7%
Solar power 2 66.7%
Technology 2 66.7%
Agriculture 1 33.3%
Air pollution 1 33.3%
Automation 1 33.3%
Automotive industry in Sweden 1 33.3%
Battery electric vehicle 1 33.3%
Biofuel 1 33.3%
Biogas 1 33.3%
Bus 1 33.3%
Car 1 33.3%
Carbon capture and storage 1 33.3%
Carbon dioxide 1 33.3%
Chemistry 1 33.3%
Coal 1 33.3%
Corporate average fuel economy 1 33.3%
Demand response 1 33.3%
Electric car 1 33.3%
Electric motor 1 33.3%
Electric power transmission 1 33.3%
Electric vehicle 1 33.3%
Emerging technologies 1 33.3%
Emission standard 1 33.3%
Energy production 1 33.3%
Energy storage 1 33.3%
Energy technology 1 33.3%
Entrepreneurship 1 33.3%
Environmental remediation 1 33.3%
Environmental technology 1 33.3%
Exhaust gas 1 33.3%
Exhaust gas recirculation 1 33.3%
Fuel 1 33.3%
Fuel cell 1 33.3%
Fuel economy in automobiles 1 33.3%
Fuel efficiency 1 33.3%
Gas turbine 1 33.3%
Gasoline 1 33.3%
General Motors EV1 1 33.3%
Generation IV reactor 1 33.3%
Governance 1 33.3%
Government incentives for plug-in electric vehicles 1 33.3%
Green job 1 33.3%
Greenhouse gas 1 33.3%
Honda Accord 1 33.3%
Honda Civic 1 33.3%
Honda Insight 1 33.3%
Hybrid electric vehicle 1 33.3%
Hybrid vehicle 1 33.3%
Hybrid vehicle drivetrain 1 33.3%
Innovation 1 33.3%
Internal combustion engine 1 33.3%
Jon Wellinghoff 1 33.3%
Land vehicles 1 33.3%
Liquefied natural gas 1 33.3%
Low-carbon economy 1 33.3%
Manufacturing 1 33.3%
Mining 1 33.3%
Molten salt reactor 1 33.3%
Motor vehicles 1 33.3%
Nanomaterials 1 33.3%
Nanotechnology 1 33.3%
Natural gas 1 33.3%
Nature 1 33.3%
New product development 1 33.3%
Nuclear power 1 33.3%
Nuclear reactor 1 33.3%
Occupational safety and health 1 33.3%
Offshore wind power 1 33.3%
Particulates 1 33.3%
Photovoltaics 1 33.3%
Plug-in hybrid 1 33.3%
Powertrain 1 33.3%
Pressurized water reactor 1 33.3%
Price 1 33.3%
Recycling 1 33.3%
Regional transmission organization (North America) 1 33.3%
Reliability engineering 1 33.3%
Renewable energy 1 33.3%
Research and development 1 33.3%
Smog 1 33.3%
Solar energy 1 33.3%
Sport utility vehicle 1 33.3%
Start-stop system 1 33.3%
Subsidy 1 33.3%
Sustainable development 1 33.3%
Sustainable technologies 1 33.3%
Toyota Prius 1 33.3%
Train 1 33.3%
Transmission (mechanics) 1 33.3%
Transport 1 33.3%
Transportation engineering 1 33.3%
Truck 1 33.3%
Utility frequency 1 33.3%
Vehicle 1 33.3%
Vehicle technology 1 33.3%
Vehicles 1 33.3%
Waste 1 33.3%
Wind power 1 33.3%
Zero-emissions vehicle 1 33.3%

2012

abs rel
Economy 9 90.0%
Human activities 8 80.0%
Infrastructure 7 70.0%
Transport 6 60.0%
Economic growth 5 50.0%
Market (economics) 5 50.0%
Rail transport 5 50.0%
Technology 5 50.0%
Air pollution 4 40.0%
Business 4 40.0%
Public transport 4 40.0%
Tax 4 40.0%
Bus 3 30.0%
Car 3 30.0%
Cargo 3 30.0%
Climate change mitigation 3 30.0%
Competition 3 30.0%
Construction 3 30.0%
Demand 3 30.0%
Efficient energy use 3 30.0%
Electric power transmission 3 30.0%
Fuel economy in automobiles 3 30.0%
Low-carbon economy 3 30.0%
Plug-in hybrid 3 30.0%
Road 3 30.0%
Subsidy 3 30.0%
Sustainability 3 30.0%
Sustainable transport 3 30.0%
Traffic 3 30.0%
Vehicle 3 30.0%
Artificial objects 2 20.0%
Battery electric vehicle 2 20.0%
Catalytic converter 2 20.0%
City 2 20.0%
Clean Air Act (United States) 2 20.0%
Containerization 2 20.0%
Contract 2 20.0%
Controlled-access highway 2 20.0%
Corporate average fuel economy 2 20.0%
Economics 2 20.0%
Electric power 2 20.0%
Electricity 2 20.0%
Energy 2 20.0%
Energy development 2 20.0%
Engine 2 20.0%
Fossil fuel 2 20.0%
Fuel cell 2 20.0%
Fuel cell vehicle 2 20.0%
Fuel efficiency 2 20.0%
Greenhouse gas 2 20.0%
High-occupancy vehicle lane 2 20.0%
Highway 2 20.0%
Hybrid electric vehicle 2 20.0%
Hydroelectricity 2 20.0%
Incentive 2 20.0%
Innovation 2 20.0%
Labour economics 2 20.0%
Logistics 2 20.0%
Manufacturing 2 20.0%
Power (physics) 2 20.0%
Pricing 2 20.0%
Profit (economics) 2 20.0%
R&D intensity 2 20.0%
Research 2 20.0%
Research and development 2 20.0%
Risk 2 20.0%
Road traffic safety 2 20.0%
Road transport 2 20.0%
Toll road 2 20.0%
Traffic congestion 2 20.0%
Train 2 20.0%
Zero-emissions vehicle 2 20.0%
Abidjan 1 10.0%
Africa 1 10.0%
Agriculture 1 10.0%
Aid 1 10.0%
Airline 1 10.0%
Airport 1 10.0%
Analytics 1 10.0%
Ancillary services (electric power) 1 10.0%
Apportionment 1 10.0%
Asset management 1 10.0%
Auction 1 10.0%
Audit 1 10.0%
Automation 1 10.0%
Automotive industry 1 10.0%
Automotive safety 1 10.0%
Bank 1 10.0%
Basslink 1 10.0%
Best practice 1 10.0%
Bond credit rating 1 10.0%
Budget 1 10.0%
Bus rapid transit 1 10.0%
Carbon pricing in Australia 1 10.0%
Clean Air Act of 1963 1 10.0%
Coal 1 10.0%
Colonialism 1 10.0%
Commercial driver's license 1 10.0%
Competition (companies) 1 10.0%
Competition (economics) 1 10.0%
Computable general equilibrium 1 10.0%
Computer network 1 10.0%
Computer security 1 10.0%
Congestion pricing 1 10.0%
Corruption 1 10.0%
Credit 1 10.0%
Credit rating agency 1 10.0%
Dangerous goods 1 10.0%
Debt 1 10.0%
Demand curve 1 10.0%
Demand response 1 10.0%
Demand responsive transport 1 10.0%
Developing country 1 10.0%
Development aid 1 10.0%
Development economics 1 10.0%
Diesel fuel 1 10.0%
Distributed generation 1 10.0%
Distribution management system 1 10.0%
Driver's license 1 10.0%
Driving under the influence 1 10.0%
Dynamic pricing 1 10.0%
Economic interventionism 1 10.0%
Economy of Africa 1 10.0%
Education 1 10.0%
Elasticity (economics) 1 10.0%
Electric car 1 10.0%
Electric power distribution 1 10.0%
Electric power quality 1 10.0%
Electric vehicle 1 10.0%
Electrical engineering 1 10.0%
Electrical fault 1 10.0%
Electrical grid 1 10.0%
Electrical substation 1 10.0%
Electricity generation 1 10.0%
Electromagnetism 1 10.0%
Emission standard 1 10.0%
Energy demand management 1 10.0%
Energy policy of the United States 1 10.0%
Entrepreneurship 1 10.0%
European emission standards 1 10.0%
Exhaust gas 1 10.0%
Externality 1 10.0%
Finance 1 10.0%
Financial crisis of 2007–2008 1 10.0%
Fragile state 1 10.0%
Fuel 1 10.0%
Gasoline 1 10.0%
Global financial system 1 10.0%
Governance 1 10.0%
Green vehicle 1 10.0%
Grid energy storage 1 10.0%
Gross domestic product 1 10.0%
High-occupancy toll lane 1 10.0%
High-voltage direct current 1 10.0%
Hours of service 1 10.0%
Ignition interlock device 1 10.0%
Industry 1 10.0%
Inspection 1 10.0%
Intelligent transportation system 1 10.0%
Interchange (road) 1 10.0%
Intercity bus service 1 10.0%
Interest 1 10.0%
Internet 1 10.0%
Interoperability 1 10.0%
Interstate 35E (Minnesota) 1 10.0%
Interstate 35W (Minnesota) 1 10.0%
Interstate 394 1 10.0%
Interstate 494 1 10.0%
Interstate 694 1 10.0%
Interstate 94 in Minnesota 1 10.0%
LKW-Maut 1 10.0%
Land transport 1 10.0%
Light rail 1 10.0%
Loan 1 10.0%
Local government 1 10.0%
Low-carbon fuel standard 1 10.0%
Maintenance (technical) 1 10.0%
Management 1 10.0%
Market power 1 10.0%
Market segmentation 1 10.0%
Marketing 1 10.0%
Metropolitan planning organization 1 10.0%
Microeconomics 1 10.0%
Minneapolis–Saint Paul 1 10.0%
Mitigation banking 1 10.0%
MnPASS 1 10.0%
National Ambient Air Quality Standards 1 10.0%
National Bridge Inventory 1 10.0%
Nature 1 10.0%
Northstar Line 1 10.0%
Open Automated Demand Response 1 10.0%
Paratransit 1 10.0%
Partnership 1 10.0%
Petroleum 1 10.0%
Photovoltaic system 1 10.0%
Photovoltaics 1 10.0%
Plug-in electric vehicle 1 10.0%
Policy 1 10.0%
Politics of global warming 1 10.0%
Pollution 1 10.0%
Population 1 10.0%
Port 1 10.0%
Poverty 1 10.0%
Power electronics 1 10.0%
Power inverter 1 10.0%
Power purchase agreement 1 10.0%
Power station 1 10.0%
Price 1 10.0%
Production function 1 10.0%
Productivity 1 10.0%
Public–private partnership 1 10.0%
Purchasing power parity 1 10.0%
Ramp meter 1 10.0%
Rebate (marketing) 1 10.0%
Recession 1 10.0%
Regulatory compliance 1 10.0%
Reliability engineering 1 10.0%
Renewable energy 1 10.0%
Resource 1 10.0%
Retail 1 10.0%
Road pricing 1 10.0%
Rush hour 1 10.0%
Safety 1 10.0%
Service industries 1 10.0%
Simulation 1 10.0%
Smart grid 1 10.0%
Smart meter 1 10.0%
Solar power 1 10.0%
Standardization 1 10.0%
Sub-Saharan Africa 1 10.0%
Supply (economics) 1 10.0%
Supply chain 1 10.0%
System 1 10.0%
Technology roadmap 1 10.0%
Trade 1 10.0%
Traffic collision 1 10.0%
Trans-African Highway network 1 10.0%
Truck 1 10.0%
U.S. state 1 10.0%
United States Code 1 10.0%
United States congressional apportionment 1 10.0%
Vehicle emission standard 1 10.0%
Wind power 1 10.0%
World Wide Web 1 10.0%

2013

abs rel
Economy 8 61.5%
Human activities 8 61.5%
Public transport 6 46.2%
Renewable energy 6 46.2%
Sustainability 6 46.2%
Technology 6 46.2%
Transport 6 46.2%
Biofuel 5 38.5%
Car 5 38.5%
Economic growth 5 38.5%
Fuel efficiency 5 38.5%
Pollution 5 38.5%
Rail transport 5 38.5%
Tax 5 38.5%
Air pollution 4 30.8%
Distributed generation 4 30.8%
Efficient energy use 4 30.8%
Electric vehicle 4 30.8%
Electrical grid 4 30.8%
Energy 4 30.8%
Fuel 4 30.8%
Greenhouse gas 4 30.8%
Innovation 4 30.8%
Mode of transport 4 30.8%
Nature 4 30.8%
Photovoltaics 4 30.8%
Road 4 30.8%
Road pricing 4 30.8%
Train 4 30.8%
Vehicle 4 30.8%
Artificial objects 3 23.1%
Battery electric vehicle 3 23.1%
Bicycle-sharing system 3 23.1%
Bus 3 23.1%
Compressed natural gas 3 23.1%
Cost 3 23.1%
Economics 3 23.1%
Electric power transmission 3 23.1%
Employment 3 23.1%
Engine 3 23.1%
Gasoline 3 23.1%
Infrastructure 3 23.1%
Market (economics) 3 23.1%
Natural gas 3 23.1%
Petroleum 3 23.1%
Solar power 3 23.1%
Wind power 3 23.1%
AC power 2 15.4%
Alternating current 2 15.4%
Ancillary services (electric power) 2 15.4%
Business 2 15.4%
Cargo 2 15.4%
Carsharing 2 15.4%
Cogeneration 2 15.4%
Competition (companies) 2 15.4%
Construction 2 15.4%
Cost–benefit analysis 2 15.4%
Cycling 2 15.4%
Decision-making 2 15.4%
Demand 2 15.4%
Demand response 2 15.4%
Design 2 15.4%
Eco-efficiency 2 15.4%
Economic development 2 15.4%
Electric generator 2 15.4%
Electric power 2 15.4%
Electric power distribution 2 15.4%
Electric power quality 2 15.4%
Electrical engineering 2 15.4%
Electrical substation 2 15.4%
Electricity 2 15.4%
Electricity generation 2 15.4%
Electromagnetism 2 15.4%
Energy demand management 2 15.4%
Energy development 2 15.4%
European emission standards 2 15.4%
Evaluation 2 15.4%
Federal Power Act 2 15.4%
Fuel economy in automobiles 2 15.4%
Global warming 2 15.4%
Gross domestic product 2 15.4%
Hazard 2 15.4%
Hybrid vehicle 2 15.4%
Induction generator 2 15.4%
Insurance 2 15.4%
Labour economics 2 15.4%
Life-cycle assessment 2 15.4%
Load management 2 15.4%
Manufacturing 2 15.4%
Mathematical optimization 2 15.4%
NOx 2 15.4%
Option (finance) 2 15.4%
Physical quantities 2 15.4%
Policy 2 15.4%
Power (physics) 2 15.4%
Power station 2 15.4%
Price 2 15.4%
Productivity 2 15.4%
Public Utility Regulatory Policies Act 2 15.4%
Rebound effect (conservation) 2 15.4%
Recycling 2 15.4%
Regulatory compliance 2 15.4%
Reliability engineering 2 15.4%
Risk 2 15.4%
Science and Technology Options Assessment 2 15.4%
Simulation 2 15.4%
Smart grid 2 15.4%
Subsidy 2 15.4%
Sustainable development 2 15.4%
Sustainable transport 2 15.4%
Transformer 2 15.4%
Truck 2 15.4%
Unemployment 2 15.4%
Vehicle emission standard 2 15.4%
Watt 2 15.4%
Welfare 2 15.4%
Workforce 2 15.4%
World energy consumption 2 15.4%
Accessibility 1 7.7%
Aftermarket (automotive) 1 7.7%
Airport 1 7.7%
Alaskan Way 1 7.7%
Alaskan Way Viaduct 1 7.7%
Alternative fuel vehicle 1 7.7%
Assembly line 1 7.7%
Automation 1 7.7%
Automotive industry 1 7.7%
Best practice 1 7.7%
Bioenergy 1 7.7%
Biofuel in the European Union 1 7.7%
Biofuel in the United States 1 7.7%
Biogas 1 7.7%
Biomass 1 7.7%
Bridge scour 1 7.7%
Broadway (Seattle) 1 7.7%
Budget 1 7.7%
Burke–Gilman Trail 1 7.7%
Bus rapid transit 1 7.7%
Capitol Hill station 1 7.7%
Car platform 1 7.7%
Carbon capture and storage 1 7.7%
Charging station 1 7.7%
Check-in 1 7.7%
Chevrolet Volt 1 7.7%
Chinatown–International District, Seattle 1 7.7%
Clean Air Act (United States) 1 7.7%
Climate resilience 1 7.7%
Coal 1 7.7%
Coal pollution mitigation 1 7.7%
Communications-based train control 1 7.7%
Competition 1 7.7%
Compressed-air energy storage 1 7.7%
Concentrated solar power 1 7.7%
Contract 1 7.7%
Corporate average fuel economy 1 7.7%
Cost curve 1 7.7%
Criteria air pollutants 1 7.7%
Curb 1 7.7%
Cycling infrastructure 1 7.7%
Derivative 1 7.7%
Directive (European Union) 1 7.7%
Discounted cash flow 1 7.7%
Discrete choice 1 7.7%
Dose–response relationship 1 7.7%
East Side Access 1 7.7%
Econometrics 1 7.7%
Economic equilibrium 1 7.7%
Economics of climate change mitigation 1 7.7%
Economies of scale 1 7.7%
Economy of Australia 1 7.7%
Educational technology 1 7.7%
Electric battery 1 7.7%
Electric power industry 1 7.7%
Electric power system 1 7.7%
Electronic ticket 1 7.7%
Elliott Bay 1 7.7%
Emergency management 1 7.7%
Emerging technologies 1 7.7%
Emission standard 1 7.7%
Emissions trading 1 7.7%
Energy security 1 7.7%
Energy storage 1 7.7%
Engineering 1 7.7%
Enhanced oil recovery 1 7.7%
Environmental impact assessment 1 7.7%
Environmental policy 1 7.7%
Environmental protection 1 7.7%
Environmental technology 1 7.7%
Ethanol fuel 1 7.7%
Expected value 1 7.7%
Export 1 7.7%
Externality 1 7.7%
Factory 1 7.7%
Finance 1 7.7%
Financial crisis of 2007–2008 1 7.7%
First Hill Streetcar 1 7.7%
Flexible-fuel vehicle 1 7.7%
Flood 1 7.7%
Force 1 7.7%
Fossil fuel 1 7.7%
Fossil fuel power station 1 7.7%
Fuel cell vehicle 1 7.7%
Fuel tax 1 7.7%
Function (mathematics) 1 7.7%
Gasoline and diesel usage and pricing 1 7.7%
Green building 1 7.7%
Green infrastructure 1 7.7%
Green job 1 7.7%
Health 1 7.7%
HealthLine 1 7.7%
Heat wave 1 7.7%
Heating, ventilation, and air conditioning 1 7.7%
Hurricane Sandy 1 7.7%
Hybrid electric vehicle 1 7.7%
Incentive 1 7.7%
Industry 1 7.7%
Information 1 7.7%
Intermodal passenger transport 1 7.7%
Internal combustion engine 1 7.7%
Intersection (road) 1 7.7%
Inventory 1 7.7%
Investment 1 7.7%
Journey planner 1 7.7%
Kilowatt hour 1 7.7%
Kilowatt-hour 1 7.7%
Land transport 1 7.7%
Layoff 1 7.7%
Light rail 1 7.7%
Log-normal distribution 1 7.7%
Loss function 1 7.7%
Low-carbon economy 1 7.7%
Luxury vehicle 1 7.7%
Marginal abatement cost 1 7.7%
Market economy 1 7.7%
Marketing 1 7.7%
Matrix (mathematics) 1 7.7%
Melbourne 1 7.7%
Metrology 1 7.7%
Microeconomics 1 7.7%
Motorcycle 1 7.7%
Nanomaterials 1 7.7%
Nanotechnology 1 7.7%
Natural disaster 1 7.7%
Natural environment 1 7.7%
Net present value 1 7.7%
New York City Subway 1 7.7%
New product development 1 7.7%
Newark Liberty International Airport 1 7.7%
Noise 1 7.7%
Nuclear power 1 7.7%
Occupational safety and health 1 7.7%
Oil sands 1 7.7%
Optimal tax 1 7.7%
Othello station 1 7.7%
Ozone 1 7.7%
Parameter 1 7.7%
Particulates 1 7.7%
Peak oil 1 7.7%
Pedestrian 1 7.7%
Physics 1 7.7%
Pickup truck 1 7.7%
Plug-in hybrid 1 7.7%
Port 1 7.7%
Porter's five forces analysis 1 7.7%
Power factor 1 7.7%
Power outage 1 7.7%
Precipitation 1 7.7%
Prediction 1 7.7%
Price discrimination 1 7.7%
Price of oil 1 7.7%
Profit (economics) 1 7.7%
Race and ethnicity in the United States Census 1 7.7%
Rail freight transport 1 7.7%
Rapid transit 1 7.7%
Regulation 1 7.7%
Renewable resource 1 7.7%
Research 1 7.7%
Resource 1 7.7%
Risk management 1 7.7%
Road surface 1 7.7%
Road transport 1 7.7%
Safety 1 7.7%
Sea 1 7.7%
Sea level rise 1 7.7%
Selective catalytic reduction 1 7.7%
Service industries 1 7.7%
Sidewalk 1 7.7%
Social cost 1 7.7%
Solar energy 1 7.7%
South Lake Union, Seattle 1 7.7%
Sport utility vehicle 1 7.7%
Standard deviation 1 7.7%
Statistics 1 7.7%
Stormwater 1 7.7%
Strategic management 1 7.7%
Street 1 7.7%
Supply chain 1 7.7%
Sustainable technologies 1 7.7%
Switching barriers 1 7.7%
System 1 7.7%
Tariff 1 7.7%
Tonnage 1 7.7%
Total fertility rate 1 7.7%
Toyota Camry 1 7.7%
Toyota Prius Plug-in Hybrid 1 7.7%
Trade 1 7.7%
Traffic 1 7.7%
Traffic congestion 1 7.7%
Trail 1 7.7%
Transport infrastructure 1 7.7%
Transportation engineering 1 7.7%
Transportation forecasting 1 7.7%
Tunnel 1 7.7%
Type approval 1 7.7%
Uncertainty 1 7.7%
Unconventional oil 1 7.7%
Value-added tax 1 7.7%
Variance 1 7.7%
Vignette (road tax) 1 7.7%
Volatile organic compound 1 7.7%
Volt-ampere 1 7.7%
Washington State Route 99 1 7.7%
Waste 1 7.7%
Waste Electrical and Electronic Equipment Directive 1 7.7%
Waste management 1 7.7%
Wetland 1 7.7%
Workforce development 1 7.7%

2014

abs rel
Economy 21 70.0%
Human activities 21 70.0%
Sustainability 19 63.3%
Efficient energy use 15 50.0%
Technology 15 50.0%
Transport 14 46.7%
Renewable energy 13 43.3%
Electrical grid 12 40.0%
Energy 12 40.0%
Infrastructure 12 40.0%
Demand 11 36.7%
Power station 11 36.7%
Electricity 10 33.3%
Electricity generation 10 33.3%
Fuel 10 33.3%
Road 10 33.3%
Air pollution 9 30.0%
Car 9 30.0%
Electric power transmission 9 30.0%
Greenhouse gas 9 30.0%
Hydroelectricity 9 30.0%
Liquefied natural gas 9 30.0%
Nature 9 30.0%
Public transport 9 30.0%
Wind power 9 30.0%
Distributed generation 8 26.7%
Economics 8 26.7%
Electric power distribution 8 26.7%
Electrical substation 8 26.7%
Energy development 8 26.7%
Evaluation 8 26.7%
Forecasting 8 26.7%
Fossil fuel 8 26.7%
Innovation 8 26.7%
Load profile 8 26.7%
Natural gas 8 26.7%
Peak demand 8 26.7%
Simulation 8 26.7%
Tax 8 26.7%
Traffic 8 26.7%
Watt 8 26.7%
Capacity factor 7 23.3%
Electric power 7 23.3%
Energy storage 7 23.3%
Low-carbon economy 7 23.3%
Photovoltaics 7 23.3%
Rail transport 7 23.3%
Safety 7 23.3%
Smart grid 7 23.3%
Variable renewable energy 7 23.3%
Ancillary services (electric power) 6 20.0%
Combined cycle power plant 6 20.0%
Concentrated solar power 6 20.0%
Demand response 6 20.0%
Electric power industry 6 20.0%
Electric vehicle 6 20.0%
Electrical engineering 6 20.0%
Energy production 6 20.0%
Geothermal power 6 20.0%
Net metering 6 20.0%
Ocean thermal energy conversion 6 20.0%
Option (finance) 6 20.0%
Photovoltaic system 6 20.0%
Power (physics) 6 20.0%
Power purchase agreement 6 20.0%
Reliability engineering 6 20.0%
Resource 6 20.0%
Rooftop photovoltaic power station 6 20.0%
Solar power 6 20.0%
Sustainable technologies 6 20.0%
System 6 20.0%
Tidal power 6 20.0%
Traffic congestion 6 20.0%
Construction 5 16.7%
Economic growth 5 16.7%
Employment 5 16.7%
Energy industry 5 16.7%
Fuel economy in automobiles 5 16.7%
Goal 5 16.7%
Market (economics) 5 16.7%
Power supply 5 16.7%
Research 5 16.7%
Risk 5 16.7%
Road traffic safety 5 16.7%
Accessibility 4 13.3%
Artificial objects 4 13.3%
Carbon dioxide 4 13.3%
Climate change mitigation 4 13.3%
Cycling 4 13.3%
Gross domestic product 4 13.3%
High-voltage direct current 4 13.3%
Life-cycle assessment 4 13.3%
Mode of transport 4 13.3%
Pumped-storage hydroelectricity 4 13.3%
Road pricing 4 13.3%
Sensitivity analysis 4 13.3%
Solar energy 4 13.3%
Supply chain 4 13.3%
Sustainable energy 4 13.3%
Traffic collision 4 13.3%
Urban planning 4 13.3%
Vehicle 4 13.3%
Airport 3 10.0%
Best practice 3 10.0%
Biofuel 3 10.0%
Biomass 3 10.0%
Bus 3 10.0%
Cargo 3 10.0%
Competition 3 10.0%
Computer network 3 10.0%
Controlled-access highway 3 10.0%
Cost of electricity by source 3 10.0%
Cost–benefit analysis 3 10.0%
Electric power system 3 10.0%
Electromagnetism 3 10.0%
Energy technology 3 10.0%
European emission standards 3 10.0%
Exhaust gas 3 10.0%
Finance 3 10.0%
Investment 3 10.0%
Kilowatt-hour 3 10.0%
Labour economics 3 10.0%
Levelized cost of energy 3 10.0%
Logistics 3 10.0%
Nameplate capacity 3 10.0%
Natural environment 3 10.0%
Natural resource 3 10.0%
Parking 3 10.0%
Petroleum 3 10.0%
Photovoltaic power station 3 10.0%
Physical quantities 3 10.0%
Pollution 3 10.0%
Public utility 3 10.0%
Rail freight transport 3 10.0%
Rebound effect (conservation) 3 10.0%
Service industries 3 10.0%
Smart city 3 10.0%
Speed limit 3 10.0%
Standardization 3 10.0%
Sustainable transport 3 10.0%
Thermal power station 3 10.0%
Traffic flow 3 10.0%
Transportation engineering 3 10.0%
World energy consumption 3 10.0%
Analytic hierarchy process 2 6.7%
Availability 2 6.7%
Carbon dioxide in Earth's atmosphere 2 6.7%
Carbon price 2 6.7%
Clean Development Mechanism 2 6.7%
Coal 2 6.7%
Collision avoidance system 2 6.7%
Combined sewer 2 6.7%
Commercial driver's license 2 6.7%
Community 2 6.7%
Compressed natural gas 2 6.7%
Culture 2 6.7%
Database 2 6.7%
Diesel engine 2 6.7%
Economic development 2 6.7%
Economic equilibrium 2 6.7%
Economics of climate change mitigation 2 6.7%
Elasticity (economics) 2 6.7%
Electric car 2 6.7%
Electric generator 2 6.7%
Emission intensity 2 6.7%
Emissions trading 2 6.7%
Employee retention 2 6.7%
Energy-efficient driving 2 6.7%
Environmental impact assessment 2 6.7%
Environmental social science 2 6.7%
Externality 2 6.7%
Fossil fuel power station 2 6.7%
Fuel efficiency 2 6.7%
Global warming potential 2 6.7%
Grid energy storage 2 6.7%
HVDC Inter-Island 2 6.7%
Health 2 6.7%
Hedge (finance) 2 6.7%
Hours of service 2 6.7%
Information 2 6.7%
Input–output model 2 6.7%
Intelligent transportation system 2 6.7%
Internal Market in Electricity Directive 2 6.7%
Internal combustion engine 2 6.7%
Investor 2 6.7%
Kilowatt hour 2 6.7%
Land management 2 6.7%
Lane 2 6.7%
Light-sport aircraft 2 6.7%
Mains electricity 2 6.7%
Management 2 6.7%
Mathematical optimization 2 6.7%
Mean time between failures 2 6.7%
Mining 2 6.7%
Net present value 2 6.7%
Next Generation Air Transportation System 2 6.7%
Nuclear power 2 6.7%
Organization Designation Authorization 2 6.7%
Particulates 2 6.7%
Peaking power plant 2 6.7%
Performance indicator 2 6.7%
Positive train control 2 6.7%
Power outage 2 6.7%
Price elasticity of demand 2 6.7%
Productivity 2 6.7%
Profit (economics) 2 6.7%
Rapid transit 2 6.7%
Recycling 2 6.7%
Regulatory compliance 2 6.7%
Renewable portfolio standard 2 6.7%
Research and development 2 6.7%
Road transport 2 6.7%
Safety management system 2 6.7%
Self-driving car 2 6.7%
Smart meter 2 6.7%
Stormwater 2 6.7%
Strategic planning 2 6.7%
Supply (economics) 2 6.7%
Tariff 2 6.7%
Total harmonic distortion 2 6.7%
Trade-off 2 6.7%
Train 2 6.7%
Trans-European Transport Network 2 6.7%
Truck 2 6.7%
Truck driver 2 6.7%
Unmanned aerial vehicle 2 6.7%
Urban sprawl 2 6.7%
Urbanization 2 6.7%
Utility 2 6.7%
Vehicular automation 2 6.7%
Volt 2 6.7%
Waste 2 6.7%
Wind farm 2 6.7%
World energy resources 2 6.7%
Zoning 2 6.7%
Absorptive capacity 1 3.3%
Administrative divisions of South Korea 1 3.3%
Affordable housing 1 3.3%
Aggregate demand 1 3.3%
Airline 1 3.3%
All-way stop 1 3.3%
Alternative fuel 1 3.3%
Americans with Disabilities Act of 1990 1 3.3%
Architecture 1 3.3%
Asphalt 1 3.3%
Auction 1 3.3%
Autogas 1 3.3%
Autonomous cruise control system 1 3.3%
Autonomy 1 3.3%
Barking, London 1 3.3%
Bicycle-sharing system 1 3.3%
Bus lane 1 3.3%
Bus rapid transit 1 3.3%
Business 1 3.3%
California Environmental Quality Act 1 3.3%
Capitalism 1 3.3%
Carbon credit 1 3.3%
Carbon footprint 1 3.3%
Carbon pricing in Australia 1 3.3%
Carbon tax 1 3.3%
Carpool 1 3.3%
Carsharing 1 3.3%
Cedar River (Washington) 1 3.3%
Cement 1 3.3%
Charging station 1 3.3%
Check-in 1 3.3%
Chelsea, London 1 3.3%
Citizenship 1 3.3%
Clean Water Act 1 3.3%
Climate change 1 3.3%
Climate change adaptation 1 3.3%
Climate resilience 1 3.3%
Cobb–Douglas production function 1 3.3%
Combustion 1 3.3%
Compact city 1 3.3%
Competition (companies) 1 3.3%
Computable general equilibrium 1 3.3%
Computer security 1 3.3%
Concrete 1 3.3%
Congestion pricing 1 3.3%
Construction aggregate 1 3.3%
Consumer choice 1 3.3%
Copyright 1 3.3%
Cost-effectiveness analysis 1 3.3%
Creativity 1 3.3%
Crime 1 3.3%
Crime prevention 1 3.3%
Crime prevention through environmental design 1 3.3%
Cross-laminated timber 1 3.3%
Cruise control 1 3.3%
Curb 1 3.3%
Curb extension 1 3.3%
Cycling infrastructure 1 3.3%
Debt 1 3.3%
Delivery (commerce) 1 3.3%
Design 1 3.3%
Diamond interchange 1 3.3%
Diesel fuel 1 3.3%
Dimethyl ether 1 3.3%
Directive (European Union) 1 3.3%
Discrete choice 1 3.3%
Disease 1 3.3%
Disruptive innovation 1 3.3%
Driving under the influence 1 3.3%
Dual carriageway 1 3.3%
Ecodesign 1 3.3%
Ecolabel 1 3.3%
Ecological footprint 1 3.3%
Ecology 1 3.3%
Economic interventionism 1 3.3%
Economic model 1 3.3%
Economy-wide material flow accounts 1 3.3%
Ecotax 1 3.3%
Education 1 3.3%
Electric battery 1 3.3%
Electronic ticket 1 3.3%
Emission standard 1 3.3%
Empathy 1 3.3%
Energy Star 1 3.3%
Energy conservation 1 3.3%
Energy efficiency in transport 1 3.3%
Energy intensity 1 3.3%
Energy market 1 3.3%
Energy policy of the United Kingdom 1 3.3%
Engine 1 3.3%
Entrepreneurship 1 3.3%
Environmental policy 1 3.3%
European Union law 1 3.3%
Feed-in tariff 1 3.3%
Filling station 1 3.3%
Fischer–Tropsch process 1 3.3%
Flooring 1 3.3%
Fly ash 1 3.3%
Food 1 3.3%
Fuel oil 1 3.3%
Fuels 1 3.3%
Gas flare 1 3.3%
Gasoline 1 3.3%
Gasoline and diesel usage and pricing 1 3.3%
General equilibrium theory 1 3.3%
General practitioner 1 3.3%
Geometric design of roads 1 3.3%
Geothermal energy 1 3.3%
Glued laminated timber 1 3.3%
Governance 1 3.3%
Green building 1 3.3%
Green infrastructure 1 3.3%
Hackney Wick 1 3.3%
Health system 1 3.3%
High-rise building 1 3.3%
Highway 1 3.3%
Hospital 1 3.3%
Hybrid electric vehicle 1 3.3%
Hybrid vehicle 1 3.3%
Hydrogen vehicle 1 3.3%
Income 1 3.3%
Independent Power Producer 1 3.3%
Independent power producer 1 3.3%
Induced demand 1 3.3%
Information asymmetry 1 3.3%
Institution 1 3.3%
Intelligent speed adaptation 1 3.3%
Interchange (road) 1 3.3%
Intermodal passenger transport 1 3.3%
Internal rate of return 1 3.3%
International System of Units 1 3.3%
International performance measurement and verification protocol 1 3.3%
Internet 1 3.3%
Interoperability 1 3.3%
Intersection (road) 1 3.3%
Jevons paradox 1 3.3%
Joseph Schumpeter 1 3.3%
Journey planner 1 3.3%
Knowledge 1 3.3%
Kyoto Protocol 1 3.3%
Land transport 1 3.3%
Land use 1 3.3%
Land-use planning 1 3.3%
Lane departure warning system 1 3.3%
Leadership in Energy and Environmental Design 1 3.3%
Legible London 1 3.3%
Level crossing 1 3.3%
Level of service 1 3.3%
Lidar 1 3.3%
Lighting 1 3.3%
Liquefied petroleum gas 1 3.3%
Liquid fuel 1 3.3%
Litre 1 3.3%
Load management 1 3.3%
London Underground 1 3.3%
Lumber 1 3.3%
MOT test 1 3.3%
Manual on Uniform Traffic Control Devices 1 3.3%
Manual transmission 1 3.3%
Manufacturing 1 3.3%
Maritime transport 1 3.3%
Market failure 1 3.3%
Market penetration 1 3.3%
Market power 1 3.3%
Materials 1 3.3%
Matrix (mathematics) 1 3.3%
Mechanical engineering 1 3.3%
Median strip 1 3.3%
Medicine 1 3.3%
Member state of the European Union 1 3.3%
Metre 1 3.3%
Microeconomics 1 3.3%
Millennials 1 3.3%
Monopoly 1 3.3%
Motorcycle 1 3.3%
Multiculturalism 1 3.3%
Multiple-criteria decision analysis 1 3.3%
NOx 1 3.3%
National accounts 1 3.3%
Natural gas vehicle 1 3.3%
Needs assessment 1 3.3%
Noise 1 3.3%
Noise pollution 1 3.3%
Nuclear reactor 1 3.3%
Oahu 1 3.3%
Offshore wind power 1 3.3%
Open access 1 3.3%
Ounce 1 3.3%
Park 1 3.3%
Parking lot 1 3.3%
Pedestrian 1 3.3%
Pedestrian crossing 1 3.3%
Petroleum industry 1 3.3%
Physical design (electronics) 1 3.3%
Pigovian tax 1 3.3%
Planning 1 3.3%
Plaster 1 3.3%
Policy 1 3.3%
Polyvinyl chloride 1 3.3%
Port 1 3.3%
Prediction 1 3.3%
Preventive healthcare 1 3.3%
Price 1 3.3%
Procurement 1 3.3%
Production function 1 3.3%
Program evaluation 1 3.3%
Public housing 1 3.3%
Public policy 1 3.3%
Public–private partnership 1 3.3%
Qualitative research 1 3.3%
Quantitative research 1 3.3%
Queen Elizabeth Olympic Park 1 3.3%
Raised pavement marker 1 3.3%
Rate of return 1 3.3%
Real estate appraisal 1 3.3%
Reducing emissions from deforestation and forest degradation 1 3.3%
Regional policy of the European Union 1 3.3%
Renewable natural gas 1 3.3%
Rent regulation 1 3.3%
Renting 1 3.3%
Restaurant 1 3.3%
Retail 1 3.3%
Road infrastructure 1 3.3%
Road safety 1 3.3%
Road surface 1 3.3%
Road surface marking 1 3.3%
Roundabout 1 3.3%
Royal Borough of Kensington and Chelsea 1 3.3%
Rumble strip 1 3.3%
Run-off-road collision 1 3.3%
Science 1 3.3%
Scientific method 1 3.3%
Self-care 1 3.3%
Shale gas 1 3.3%
Ship 1 3.3%
Short-sea shipping 1 3.3%
Shoulder (road) 1 3.3%
Sidewalk 1 3.3%
Small modular reactor 1 3.3%
Social network 1 3.3%
Spatial planning 1 3.3%
Specification (technical standard) 1 3.3%
Stadthaus 1 3.3%
Standards organization 1 3.3%
Statistics 1 3.3%
Stop sign 1 3.3%
Strategic management 1 3.3%
Stratford, London 1 3.3%
Street 1 3.3%
Suburb 1 3.3%
Sustainable development 1 3.3%
Synthetic fuel 1 3.3%
System of National Accounts 1 3.3%
Systems theory 1 3.3%
Taxicab 1 3.3%
Technological change 1 3.3%
Third Energy Package 1 3.3%
Time 1 3.3%
Tonne 1 3.3%
Top-down and bottom-up design 1 3.3%
Tottenham 1 3.3%
Traffic barrier 1 3.3%
Traffic light 1 3.3%
Trail 1 3.3%
Trans-European Transport Networks 1 3.3%
Transformer 1 3.3%
Transmission (mechanics) 1 3.3%
Transport Biofuels Directive 2003 1 3.3%
Transport infrastructure 1 3.3%
Transportation forecasting 1 3.3%
Transportation planning 1 3.3%
Treaties of the European Union 1 3.3%
U-turn 1 3.3%
Uncertainty 1 3.3%
United Nations Framework Convention on Climate Change 1 3.3%
Urban design 1 3.3%
Urban enterprise zone 1 3.3%
Urban renewal 1 3.3%
Urban runoff 1 3.3%
Vehicle emission standard 1 3.3%
Vehicles 1 3.3%
Verification and validation 1 3.3%
Vickrey auction 1 3.3%
Volatile organic compound 1 3.3%
Warning sign 1 3.3%
Wassily Leontief 1 3.3%
Waste management 1 3.3%
Water 1 3.3%
Wind turbine 1 3.3%
Wood 1 3.3%
Zero-emissions vehicle 1 3.3%

2015

abs rel
Human activities 31 77.5%
Transport 28 70.0%
Economy 21 52.5%
Sustainability 18 45.0%
Technology 17 42.5%
Infrastructure 16 40.0%
Air pollution 15 37.5%
Car 15 37.5%
Economics 15 37.5%
Economic growth 13 32.5%
Efficient energy use 13 32.5%
Natural gas 13 32.5%
Rail transport 13 32.5%
Energy 12 30.0%
Fuel 12 30.0%
Gross domestic product 12 30.0%
Petroleum 12 30.0%
Public transport 12 30.0%
Greenhouse gas 11 27.5%
Road 11 27.5%
Electrical grid 10 25.0%
Innovation 10 25.0%
Electric vehicle 9 22.5%
Energy development 9 22.5%
Liquefied natural gas 9 22.5%
Market (economics) 9 22.5%
Pollution 9 22.5%
Renewable energy 9 22.5%
Tax 9 22.5%
Traffic congestion 9 22.5%
Vehicle 9 22.5%
Electric power transmission 8 20.0%
Electricity 8 20.0%
Electricity generation 8 20.0%
Particulates 8 20.0%
Risk 8 20.0%
Traffic 8 20.0%
World energy consumption 8 20.0%
Biofuel 7 17.5%
Coal 7 17.5%
Competition 7 17.5%
Demand 7 17.5%
Economic development 7 17.5%
Employment 7 17.5%
Low-carbon economy 7 17.5%
Self-driving car 7 17.5%
Truck 7 17.5%
Artificial objects 6 15.0%
Climate change mitigation 6 15.0%
Competition (companies) 6 15.0%
Gasoline 6 15.0%
Investment 6 15.0%
Liquefied petroleum gas 6 15.0%
Nature 6 15.0%
Power station 6 15.0%
Productivity 6 15.0%
Research 6 15.0%
Subsidy 6 15.0%
Sustainable energy 6 15.0%
Trade 6 15.0%
Train 6 15.0%
Urban planning 6 15.0%
Carbon dioxide 5 12.5%
Clean Air Act (United States) 5 12.5%
Electricity pricing 5 12.5%
Energy industry 5 12.5%
Environmental impact assessment 5 12.5%
Exhaust gas 5 12.5%
Globalization 5 12.5%
Health 5 12.5%
Highway 5 12.5%
Labour economics 5 12.5%
Life-cycle assessment 5 12.5%
Noise 5 12.5%
Port 5 12.5%
Profit (economics) 5 12.5%
Retail 5 12.5%
System 5 12.5%
Accessibility 4 10.0%
Affordable housing 4 10.0%
Airline 4 10.0%
Airport 4 10.0%
Automation 4 10.0%
Built environment 4 10.0%
Business 4 10.0%
California Environmental Quality Act 4 10.0%
Cargo 4 10.0%
Construction 4 10.0%
Cost 4 10.0%
Cost–benefit analysis 4 10.0%
Emission standard 4 10.0%
Energy conservation 4 10.0%
Energy policy of the United States 4 10.0%
Energy security 4 10.0%
Engine 4 10.0%
Environmental justice 4 10.0%
European emission standards 4 10.0%
Finance 4 10.0%
Fuel economy in automobiles 4 10.0%
Fuel oil 4 10.0%
Governance 4 10.0%
Heating, ventilation, and air conditioning 4 10.0%
Interstate 805 4 10.0%
Investor 4 10.0%
Logistics 4 10.0%
Manufacturing 4 10.0%
Mixed-use development 4 10.0%
Monopoly 4 10.0%
Parking 4 10.0%
Price 4 10.0%
Public health 4 10.0%
Public–private partnership 4 10.0%
Ship 4 10.0%
Street 4 10.0%
Transit-oriented development 4 10.0%
Urban open space 4 10.0%
Volatile organic compound 4 10.0%
Walkability 4 10.0%
Zoning 4 10.0%
Architecture 3 7.5%
Boiler 3 7.5%
Charging station 3 7.5%
Collision avoidance system 3 7.5%
Combustion 3 7.5%
Containerization 3 7.5%
Contract 3 7.5%
Diesel engine 3 7.5%
Diesel fuel 3 7.5%
Economic equilibrium 3 7.5%
Elasticity (economics) 3 7.5%
Electric car 3 7.5%
Electric power 3 7.5%
Emission intensity 3 7.5%
Emissions trading 3 7.5%
Environmental law 3 7.5%
Food 3 7.5%
Forecasting 3 7.5%
Fossil fuel 3 7.5%
Fuel efficiency 3 7.5%
High-occupancy vehicle lane 3 7.5%
Hydroelectricity 3 7.5%
Insurance 3 7.5%
Land management 3 7.5%
Land transport 3 7.5%
Land use 3 7.5%
Macroeconomics 3 7.5%
Mining 3 7.5%
National Bridge Inventory 3 7.5%
Price of oil 3 7.5%
Primary energy 3 7.5%
Regression analysis 3 7.5%
Regulation 3 7.5%
Regulatory compliance 3 7.5%
Resource 3 7.5%
Selective catalytic reduction 3 7.5%
Statistics 3 7.5%
Tariff 3 7.5%
Thermal power station 3 7.5%
Traffic collision 3 7.5%
United States Code 3 7.5%
Urban sprawl 3 7.5%
Vehicle emissions control 3 7.5%
Vehicular ad-hoc network 3 7.5%
Wealth 3 7.5%
Wind power 3 7.5%
Air conditioning 2 5.0%
Alternative fuel 2 5.0%
Appropriations bill (United States) 2 5.0%
Auction 2 5.0%
Autogas 2 5.0%
Automotive safety 2 5.0%
BRIC 2 5.0%
Barnett Shale 2 5.0%
Bicycle 2 5.0%
Bond (finance) 2 5.0%
Bus 2 5.0%
Bus rapid transit 2 5.0%
California State Route 94 2 5.0%
Carbon tax 2 5.0%
Cement 2 5.0%
Cement kiln 2 5.0%
Central heating 2 5.0%
City 2 5.0%
City Heights, San Diego 2 5.0%
Cobb–Douglas production function 2 5.0%
Commuting 2 5.0%
Compressed natural gas 2 5.0%
Compressor 2 5.0%
Computer security 2 5.0%
Consumer price index 2 5.0%
Corporate average fuel economy 2 5.0%
Dallas–Fort Worth metroplex 2 5.0%
Day trading 2 5.0%
Debt 2 5.0%
Delivery (commerce) 2 5.0%
Demand response 2 5.0%
Diesel particulate filter 2 5.0%
Dimethyl ether 2 5.0%
Directive (European Union) 2 5.0%
Discounted cash flow 2 5.0%
Economics of climate change mitigation 2 5.0%
Electric battery 2 5.0%
Electric energy consumption 2 5.0%
Electrification 2 5.0%
Emerging market 2 5.0%
Endogeneity (econometrics) 2 5.0%
Energy market 2 5.0%
Energy policy 2 5.0%
Energy returned on energy invested 2 5.0%
Energy subsidy 2 5.0%
Environmental policy 2 5.0%
Evaluation 2 5.0%
Fuel cell vehicle 2 5.0%
Fuels 2 5.0%
Gentrification 2 5.0%
Geothermal heat pump 2 5.0%
Goal 2 5.0%
Government 2 5.0%
Heat pump 2 5.0%
Horsepower 2 5.0%
Hydraulic fracturing 2 5.0%
Hydrogen vehicle 2 5.0%
Idle reduction 2 5.0%
Incentive 2 5.0%
Incineration 2 5.0%
Indirect land use change impacts of biofuels 2 5.0%
Indonesian rupiah 2 5.0%
Industry 2 5.0%
Inflation 2 5.0%
Instrumental variables estimation 2 5.0%
Internal Market in Electricity Directive 2 5.0%
Internal combustion engine 2 5.0%
Internet of things 2 5.0%
Interoperability 2 5.0%
Investment management 2 5.0%
Kiln 2 5.0%
Learner's permit 2 5.0%
Level of service 2 5.0%
Linear regression 2 5.0%
Management 2 5.0%
Maritime transport 2 5.0%
Mathematical optimization 2 5.0%
Monopolistic competition 2 5.0%
Motorcycle 2 5.0%
NOx 2 5.0%
National Ambient Air Quality Standards 2 5.0%
Natural gas prices 2 5.0%
Natural gas vehicle 2 5.0%
Natural resource 2 5.0%
Natural resources 2 5.0%
Nuclear power 2 5.0%
Oil well 2 5.0%
Ozone 2 5.0%
Package delivery 2 5.0%
Park 2 5.0%
Pension 2 5.0%
Perfect competition 2 5.0%
Petroleum industry 2 5.0%
Photovoltaics 2 5.0%
Point of order 2 5.0%
Policy 2 5.0%
Recession 2 5.0%
Regional transmission organization (North America) 2 5.0%
Reliability engineering 2 5.0%
Road traffic safety 2 5.0%
Sea 2 5.0%
Shelltown, San Diego 2 5.0%
Simulation 2 5.0%
Single-family detached home 2 5.0%
Smart grid 2 5.0%
Solar energy 2 5.0%
Solar power 2 5.0%
Specification (technical standard) 2 5.0%
Standardization 2 5.0%
Standards organization 2 5.0%
State Implementation Plan 2 5.0%
Supply chain 2 5.0%
Sustainable development 2 5.0%
Synthetic fuel 2 5.0%
Technology roadmap 2 5.0%
Time 2 5.0%
Toll road 2 5.0%
Tourism 2 5.0%
Trans-European Transport Network 2 5.0%
Trans-Pacific Partnership 2 5.0%
Urban agriculture 2 5.0%
Urban area 2 5.0%
Urban design 2 5.0%
Urbanization 2 5.0%
Utility 2 5.0%
Vehicles 2 5.0%
Vehicular automation 2 5.0%
Warehouse 2 5.0%
Water heating 2 5.0%
A-weighting 1 2.5%
Aberdeen 1 2.5%
Acid rain 1 2.5%
Africa 1 2.5%
Agriculture 1 2.5%
Air cargo 1 2.5%
Aircraft noise pollution 1 2.5%
Alternative energy 1 2.5%
American Recovery and Reinvestment Act of 2009 1 2.5%
Analytics 1 2.5%
Ancillary services (electric power) 1 2.5%
Anti-fouling paint 1 2.5%
Apartment 1 2.5%
Asia 1 2.5%
Asset 1 2.5%
Asset Management Plan 1 2.5%
Asset management 1 2.5%
Atmosphere of Earth 1 2.5%
Auto rickshaw 1 2.5%
Automatic Warning System 1 2.5%
Automobile dependency 1 2.5%
Balance of trade 1 2.5%
Base load 1 2.5%
Białystok 1 2.5%
Bicycle-sharing system 1 2.5%
Big data 1 2.5%
Biocide 1 2.5%
Biofouling 1 2.5%
Biomass 1 2.5%
Bootstrapping (statistics) 1 2.5%
Border 1 2.5%
Bridge 1 2.5%
Brownfield land 1 2.5%
Budget 1 2.5%
Building code 1 2.5%
Business model 1 2.5%
Capital (economics) 1 2.5%
Carbon capture and storage 1 2.5%
Carbon footprint 1 2.5%
Carpool 1 2.5%
Carsharing 1 2.5%
Chevron U.S.A., Inc. v. Natural Resources Defense Council, Inc. 1 2.5%
Clean Development Mechanism 1 2.5%
Clean Power Plan 1 2.5%
Climate change 1 2.5%
Clinker (cement) 1 2.5%
Cogeneration 1 2.5%
Combined cycle 1 2.5%
Commercial driver's license 1 2.5%
Community 1 2.5%
Community gardening 1 2.5%
Comparative advantage 1 2.5%
Comparative statics 1 2.5%
Comprehensive planning 1 2.5%
Concentrated solar power 1 2.5%
Condensing boiler 1 2.5%
Conservation (ethic) 1 2.5%
Container ship 1 2.5%
Controlled-access highway 1 2.5%
Cracking (chemistry) 1 2.5%
Culture 1 2.5%
Customer experience 1 2.5%
Dangerous goods 1 2.5%
Deficit spending 1 2.5%
Dependent and independent variables 1 2.5%
Deregulation 1 2.5%
Developed country 1 2.5%
Developing country 1 2.5%
Didcot Parkway railway station 1 2.5%
Discounting 1 2.5%
Disease burden 1 2.5%
Disruptive innovation 1 2.5%
Distributed generation 1 2.5%
District heating 1 2.5%
Division of labour 1 2.5%
Downtown San Diego 1 2.5%
Driving 1 2.5%
Driving cycle 1 2.5%
ECall 1 2.5%
Ecolabel 1 2.5%
Ecological footprint 1 2.5%
Economic geography 1 2.5%
Economic globalization 1 2.5%
Economic inequality 1 2.5%
Economic surplus 1 2.5%
Economies of agglomeration 1 2.5%
Economies of scale 1 2.5%
Economy of Canada 1 2.5%
Economy of Japan 1 2.5%
Educational technology 1 2.5%
Elasticity (physics) 1 2.5%
Electric generator 1 2.5%
Electric motor 1 2.5%
Electric rickshaw 1 2.5%
Emergence 1 2.5%
Emergency management 1 2.5%
Energiewende in Germany 1 2.5%
Energy Community 1 2.5%
Energy Star 1 2.5%
Energy intensity 1 2.5%
Energy management 1 2.5%
Energy production 1 2.5%
Energy system 1 2.5%
Environment ministries 1 2.5%
Equation 1 2.5%
Errors and residuals 1 2.5%
Euro 1 2.5%
Europe 1 2.5%
European Union legislative procedure 1 2.5%
European debt crisis 1 2.5%
European integration 1 2.5%
Euston railway station 1 2.5%
Executive Order 12866 1 2.5%
Expense 1 2.5%
Experiment 1 2.5%
Export 1 2.5%
Externality 1 2.5%
FTP-75 1 2.5%
Factors of production 1 2.5%
Fast food 1 2.5%
Feasibility study 1 2.5%
Federal Bridge Gross Weight Formula 1 2.5%
Feed-in tariff 1 2.5%
Filling station 1 2.5%
Financial crisis 1 2.5%
Financial crisis of 2007–2008 1 2.5%
Financial plan 1 2.5%
Financial statement 1 2.5%
Fischer–Tropsch process 1 2.5%
Fixed effects model 1 2.5%
Flood 1 2.5%
Floor area 1 2.5%
Flue 1 2.5%
Fossil fuel power station 1 2.5%
Four-stroke engine 1 2.5%
Fuel injection 1 2.5%
Fuel tax 1 2.5%
Fund accounting 1 2.5%
Furnace 1 2.5%
Gas engine 1 2.5%
Geostationary orbit 1 2.5%
Geothermal energy 1 2.5%
Golden Hill, San Diego 1 2.5%
Government budget balance 1 2.5%
Green vehicle 1 2.5%
Grocery store 1 2.5%
Ground-coupled heat exchanger 1 2.5%
HVAC 1 2.5%
Healthy diet 1 2.5%
Heat 1 2.5%
High-occupancy toll lane 1 2.5%
High-speed rail 1 2.5%
Highway Trust Fund 1 2.5%
Historic districts in the United States 1 2.5%
Historic preservation 1 2.5%
Human activities with impact on the environment 1 2.5%
Human capital 1 2.5%
Human migration 1 2.5%
Hybrid vehicle 1 2.5%
IEC 62196 1 2.5%
Income 1 2.5%
Index (economics) 1 2.5%
Infill 1 2.5%
Information 1 2.5%
Infrastructure ministries 1 2.5%
Interest 1 2.5%
Interest rate 1 2.5%
International trade 1 2.5%
Interstate 495 (Capital Beltway) 1 2.5%
Interstate 5 in California 1 2.5%
Inventory 1 2.5%
Investment fund 1 2.5%
Journey planner 1 2.5%
Kilowatt hour 1 2.5%
Kyoto Protocol 1 2.5%
Land-use planning 1 2.5%
Lane departure warning system 1 2.5%
Law 1 2.5%
Least Developed Countries 1 2.5%
Level crossing 1 2.5%
Light rail 1 2.5%
Lighting 1 2.5%
Liquid fuel 1 2.5%
Local government 1 2.5%
Managed lane 1 2.5%
Marine propulsion 1 2.5%
Mathematical model 1 2.5%
Mathematics 1 2.5%
Mean 1 2.5%
Microeconomics 1 2.5%
Mode of transport 1 2.5%
Motor vehicle 1 2.5%
Mount Hope, San Diego 1 2.5%
Municipal bond 1 2.5%
National Environmental Policy Act 1 2.5%
National security 1 2.5%
Navigation 1 2.5%
Net metering 1 2.5%
Net present value 1 2.5%
Network topology 1 2.5%
New European Driving Cycle 1 2.5%
Noise regulation 1 2.5%
Nominal power (photovoltaic) 1 2.5%
North America 1 2.5%
Northern Powerhouse Rail 1 2.5%
Northwest Passage 1 2.5%
Nuclear power plant 1 2.5%
Oil refinery 1 2.5%
Oil reserves 1 2.5%
On-board diagnostics 1 2.5%
Open access 1 2.5%
Option (finance) 1 2.5%
Output (economics) 1 2.5%
Ownership 1 2.5%
Oxford railway station 1 2.5%
Pallet 1 2.5%
Parameter 1 2.5%
Pareto distribution 1 2.5%
Peer-to-peer ridesharing 1 2.5%
Petroleum reservoir 1 2.5%
Pipeline transport 1 2.5%
Piston 1 2.5%
Planning 1 2.5%
Plug-in electric vehicle 1 2.5%
Plug-in hybrid 1 2.5%
Population 1 2.5%
Port of Long Beach 1 2.5%
Positive train control 1 2.5%
Pothole 1 2.5%
Present value 1 2.5%
Price-cap regulation 1 2.5%
Privacy 1 2.5%
Privatization 1 2.5%
Probability 1 2.5%
Project finance 1 2.5%
Property 1 2.5%
Provinces and territories of Canada 1 2.5%
Public service obligation 1 2.5%
Public works ministries 1 2.5%
Purchasing power parity 1 2.5%
Race and ethnicity in the United States Census 1 2.5%
Rail freight transport 1 2.5%
Rail infrastructure 1 2.5%
Railway safety 1 2.5%
Railway signalling 1 2.5%
Real interest rate 1 2.5%
Rebound effect (conservation) 1 2.5%
Refrigerator 1 2.5%
Renewable natural gas 1 2.5%
Residential area 1 2.5%
Retrofitting 1 2.5%
Revenue 1 2.5%
Risk management 1 2.5%
Road pricing 1 2.5%
Road surface 1 2.5%
Road transport 1 2.5%
Robot 1 2.5%
Roundabout 1 2.5%
Rulemaking 1 2.5%
Russification of Finland 1 2.5%
Safety 1 2.5%
Satellite 1 2.5%
Scenario planning 1 2.5%
Scrubber 1 2.5%
Sensitivity analysis 1 2.5%
Service industries 1 2.5%
Sherman Heights, San Diego 1 2.5%
Signal passed at danger 1 2.5%
Situation awareness 1 2.5%
Smart meter 1 2.5%
Smog 1 2.5%
Social cost of carbon 1 2.5%
Social discount rate 1 2.5%
Solar water heating 1 2.5%
Southcrest, San Diego 1 2.5%
Southern United States 1 2.5%
Space heater 1 2.5%
Speed limit 1 2.5%
Standby power 1 2.5%
Strategic environmental assessment 1 2.5%
Strategy 1 2.5%
Stress (biology) 1 2.5%
Stress (mechanics) 1 2.5%
Suburb 1 2.5%
Supply and demand 1 2.5%
Surface roughness 1 2.5%
Sustainable transport 1 2.5%
Systems engineering 1 2.5%
Tank car 1 2.5%
Tax credit 1 2.5%
Taxicab 1 2.5%
Telecommuting 1 2.5%
Telematics 1 2.5%
Terraced house 1 2.5%
Thermal efficiency 1 2.5%
Time Sharing Option 1 2.5%
Traceability 1 2.5%
Trade-off 1 2.5%
Traffic flow 1 2.5%
Trail 1 2.5%
Train Protection & Warning System 1 2.5%
Train stop 1 2.5%
Transit bus 1 2.5%
Transition economy 1 2.5%
Transport Biofuels Directive 2003 1 2.5%
Transportation demand management 1 2.5%
Transportation engineering 1 2.5%
Transportation planning 1 2.5%
Treaties of the European Union 1 2.5%
Trucking industry in the United States 1 2.5%
Trust law 1 2.5%
Tunnel 1 2.5%
Two-stroke engine 1 2.5%
U.S. state 1 2.5%
Ukraine–European Union Association Agreement 1 2.5%
Unemployment 1 2.5%
United Nations Framework Convention on Climate Change 1 2.5%
Units of transportation measurement 1 2.5%
Unmanned aerial vehicle 1 2.5%
Urban economics 1 2.5%
Value (economics) 1 2.5%
Value chain 1 2.5%
Value of life 1 2.5%
Variable renewable energy 1 2.5%
Vector autoregression 1 2.5%
Waste 1 2.5%
Waste management 1 2.5%
Water 1 2.5%
Water vapor 1 2.5%
Watt 1 2.5%
Welfare 1 2.5%
West Coast Main Line 1 2.5%
West Texas Intermediate 1 2.5%
Whole-life cost 1 2.5%

2016

abs rel
Human activities 18 78.3%
Transport 17 73.9%
Technology 14 60.9%
Public transport 11 47.8%
Economy 9 39.1%
Traffic 9 39.1%
Efficient energy use 8 34.8%
Electrical grid 8 34.8%
Innovation 8 34.8%
Renewable energy 8 34.8%
Self-driving car 8 34.8%
Sustainability 8 34.8%
Car 7 30.4%
Controlled-access highway 6 26.1%
Cycling 6 26.1%
Distributed generation 6 26.1%
Economics 6 26.1%
Electric vehicle 6 26.1%
Electricity 6 26.1%
Energy 6 26.1%
Fuel 6 26.1%
Nature 6 26.1%
Pedestrian 6 26.1%
Retail 6 26.1%
Automation 5 21.7%
Complete streets 5 21.7%
Cycling infrastructure 5 21.7%
Economic growth 5 21.7%
Greenhouse gas 5 21.7%
Land transport 5 21.7%
Logistics 5 21.7%
Natural gas 5 21.7%
Parking 5 21.7%
Photovoltaics 5 21.7%
Road 5 21.7%
Solar power 5 21.7%
Street 5 21.7%
Sustainable energy 5 21.7%
Traffic congestion 5 21.7%
Trail 5 21.7%
Truck 5 21.7%
Vehicle 5 21.7%
Air pollution 4 17.4%
Bicycle 4 17.4%
Cargo 4 17.4%
Electricity generation 4 17.4%
Employment 4 17.4%
Energy development 4 17.4%
Hybrid vehicle 4 17.4%
Infrastructure 4 17.4%
Intermodal passenger transport 4 17.4%
Low-carbon economy 4 17.4%
Pedestrian crossing 4 17.4%
Petroleum 4 17.4%
Photovoltaic system 4 17.4%
Poverty 4 17.4%
Rail transport 4 17.4%
Safety 4 17.4%
Solar energy 4 17.4%
Transportation engineering 4 17.4%
Urban planning 4 17.4%
Walkability 4 17.4%
Artificial objects 3 13.0%
Biofuel 3 13.0%
Business model 3 13.0%
Carpool 3 13.0%
Construction 3 13.0%
Economic development 3 13.0%
Electric battery 3 13.0%
Electric power 3 13.0%
Electrical engineering 3 13.0%
Energy production 3 13.0%
Energy storage 3 13.0%
Engine 3 13.0%
Fuel cell 3 13.0%
Fuel cell vehicle 3 13.0%
Health 3 13.0%
Hydroelectricity 3 13.0%
Intelligent transportation system 3 13.0%
Market (economics) 3 13.0%
Noise 3 13.0%
Physical quantities 3 13.0%
Pollution 3 13.0%
Power (physics) 3 13.0%
Power inverter 3 13.0%
Road transport 3 13.0%
Service industries 3 13.0%
Simulation 3 13.0%
Smart grid 3 13.0%
Standardization 3 13.0%
Supply chain 3 13.0%
United Nations Framework Convention on Climate Change 3 13.0%
Vehicular automation 3 13.0%
Wind power 3 13.0%
World energy consumption 3 13.0%
Zoning 3 13.0%
Accessibility 2 8.7%
Battery electric vehicle 2 8.7%
Blue Line (San Diego Trolley) 2 8.7%
Built environment 2 8.7%
Business 2 8.7%
California Environmental Quality Act 2 8.7%
California State Route 905 2 8.7%
Charging station 2 8.7%
Climate change 2 8.7%
Cogeneration 2 8.7%
Collision avoidance system 2 8.7%
Commuting 2 8.7%
Computer network 2 8.7%
Consumer Expenditure Survey 2 8.7%
Corporate average fuel economy 2 8.7%
Data analysis 2 8.7%
Delivery (commerce) 2 8.7%
Economic inequality 2 8.7%
Economic sectors 2 8.7%
Electric power distribution 2 8.7%
Electric power transmission 2 8.7%
Energy and the environment 2 8.7%
Energy industry 2 8.7%
Energy security 2 8.7%
Energy service company 2 8.7%
Entrepreneurship 2 8.7%
Environmental justice 2 8.7%
Environmental law 2 8.7%
Evaluation 2 8.7%
Fossil fuel 2 8.7%
Fuel economy in automobiles 2 8.7%
Global warming 2 8.7%
Governance 2 8.7%
Grid energy storage 2 8.7%
Hardware-in-the-loop simulation 2 8.7%
High-occupancy vehicle lane 2 8.7%
Highway 2 8.7%
Hillcrest, San Diego 2 8.7%
Household income in the United States 2 8.7%
Income inequality in the United States 2 8.7%
Internal combustion engine 2 8.7%
Internet of things 2 8.7%
Interoperability 2 8.7%
Interstate 5 in California 2 8.7%
Interstate 805 2 8.7%
Investor 2 8.7%
Labour economics 2 8.7%
Life-cycle assessment 2 8.7%
Liquefied natural gas 2 8.7%
Mini-grids 2 8.7%
Nuclear power 2 8.7%
Otay Mesa, San Diego 2 8.7%
Power station 2 8.7%
Privacy 2 8.7%
Productivity 2 8.7%
Reliability engineering 2 8.7%
Renewable resources 2 8.7%
Risk 2 8.7%
Road infrastructure 2 8.7%
Road traffic safety 2 8.7%
Rooftop photovoltaic power station 2 8.7%
SCADA 2 8.7%
San Ysidro Port of Entry 2 8.7%
San Ysidro, San Diego 2 8.7%
Sidewalk 2 8.7%
Smart city 2 8.7%
Smart meter 2 8.7%
Subsidy 2 8.7%
Suburb 2 8.7%
Sustainable technologies 2 8.7%
Sustainable transport 2 8.7%
Systems engineering 2 8.7%
Tax 2 8.7%
Telecommunication 2 8.7%
Tijuana 2 8.7%
Traffic light 2 8.7%
Transport infrastructure 2 8.7%
Transportation demand management 2 8.7%
Urbanization 2 8.7%
Vehicles 2 8.7%
Vehicular ad-hoc network 2 8.7%
Visualization (graphics) 2 8.7%
2000s energy crisis 1 4.3%
A-weighting 1 4.3%
A1 road (Great Britain) 1 4.3%
A14 road (England) 1 4.3%
A30 road 1 4.3%
A303 road 1 4.3%
Advanced driver-assistance systems 1 4.3%
Ageing 1 4.3%
Agenda (meeting) 1 4.3%
Air conditioning 1 4.3%
Airbag 1 4.3%
Akaike information criterion 1 4.3%
Alternative fuel 1 4.3%
Alternative fuel vehicle 1 4.3%
Architecture 1 4.3%
Art 1 4.3%
Asset allocation 1 4.3%
Autonomous car 1 4.3%
Baltimore–Washington Parkway 1 4.3%
Bank 1 4.3%
Bankers Hill, San Diego 1 4.3%
Barnett Shale 1 4.3%
Belfast 1 4.3%
Best practice 1 4.3%
Bicycle-sharing system 1 4.3%
Biogas 1 4.3%
Biomass 1 4.3%
Boiler 1 4.3%
Bus 1 4.3%
California State Route 91 1 4.3%
Capitalism 1 4.3%
Carbon capture and storage 1 4.3%
Carbon dioxide 1 4.3%
Carbon pricing in Australia 1 4.3%
Carbon tax 1 4.3%
Carsharing 1 4.3%
Cement 1 4.3%
Cement kiln 1 4.3%
Census 1 4.3%
Centrality 1 4.3%
Circular economy 1 4.3%
City 1 4.3%
City block 1 4.3%
Clean Air Act (United States) 1 4.3%
Clean technology 1 4.3%
Climate change mitigation 1 4.3%
Clinker (cement) 1 4.3%
Cloud computing 1 4.3%
Coal 1 4.3%
Combustion 1 4.3%
Community 1 4.3%
Competition 1 4.3%
Competition (companies) 1 4.3%
Compressor 1 4.3%
Computer security 1 4.3%
Consent 1 4.3%
Container ship 1 4.3%
Containerization 1 4.3%
Cooperative 1 4.3%
Correlation and dependence 1 4.3%
Cost of electricity by source 1 4.3%
Cost–benefit analysis 1 4.3%
Creativity 1 4.3%
Cruise control 1 4.3%
Cultural identity 1 4.3%
Culture 1 4.3%
Dallas–Fort Worth metroplex 1 4.3%
Demand 1 4.3%
Demand response 1 4.3%
Department of Motor Vehicles 1 4.3%
Dependent and independent variables 1 4.3%
Developing country 1 4.3%
Diesel engine 1 4.3%
Digital Revolution 1 4.3%
Digitization 1 4.3%
Disability 1 4.3%
Driving 1 4.3%
E-commerce 1 4.3%
Eastside, Birmingham 1 4.3%
Elasticity (economics) 1 4.3%
Electric generator 1 4.3%
Electric motor 1 4.3%
Electromagnetic field 1 4.3%
Electromagnetism 1 4.3%
Emission intensity 1 4.3%
Emission standard 1 4.3%
Energiewende 1 4.3%
Energy conservation 1 4.3%
Energy market 1 4.3%
Energy policy 1 4.3%
Energy poverty 1 4.3%
Energy system 1 4.3%
Energy transition 1 4.3%
Energy-efficient driving 1 4.3%
Engineering 1 4.3%
Entropy 1 4.3%
Equity (finance) 1 4.3%
European Train Control System 1 4.3%
Event data recorder 1 4.3%
Exhaust gas 1 4.3%
Externality 1 4.3%
Feed-in tariff 1 4.3%
Finance 1 4.3%
Forecasting 1 4.3%
Freight bicycle 1 4.3%
Fuel efficiency 1 4.3%
Gasoline 1 4.3%
Geographic mobility 1 4.3%
Glider (Belfast) 1 4.3%
Global governance 1 4.3%
Globalization 1 4.3%
Great Western main line 1 4.3%
Green vehicle 1 4.3%
Grid plan 1 4.3%
Gross domestic product 1 4.3%
HVAC 1 4.3%
Heat pump 1 4.3%
Heating, ventilation, and air conditioning 1 4.3%
Hedge fund 1 4.3%
Horsepower 1 4.3%
Hybrid electric vehicle 1 4.3%
Hydrogen 1 4.3%
Hydrogen economy 1 4.3%
Idle reduction 1 4.3%
Immigration 1 4.3%
Incineration 1 4.3%
Income 1 4.3%
Industrial Revolution 1 4.3%
Information 1 4.3%
Institutional investor 1 4.3%
Insurance 1 4.3%
Interchange (road) 1 4.3%
Intermodal freight transport 1 4.3%
Internet 1 4.3%
Interstate 270 (Maryland) 1 4.3%
Interstate 370 1 4.3%
Interstate 495 (Capital Beltway) 1 4.3%
Interstate 695 (Maryland) 1 4.3%
Interstate 70 in Maryland 1 4.3%
Interstate 895 1 4.3%
Interstate 95 in Maryland 1 4.3%
Investment 1 4.3%
Investment fund 1 4.3%
Islanding 1 4.3%
Kiln 1 4.3%
Kilowatt-hour 1 4.3%
Land management 1 4.3%
Land use 1 4.3%
Lane departure warning system 1 4.3%
Leadership 1 4.3%
Level of service 1 4.3%
Lidar 1 4.3%
Light rail 1 4.3%
Lighting 1 4.3%
Low-carbon power 1 4.3%
M1 motorway 1 4.3%
Manufacturing 1 4.3%
Market economy 1 4.3%
Market liquidity 1 4.3%
Market penetration 1 4.3%
Marketing 1 4.3%
Maryland Route 144 1 4.3%
Maryland Route 197 1 4.3%
Maryland Route 200 1 4.3%
Maryland Route 7 1 4.3%
Microgrid 1 4.3%
Mission Hills, San Diego 1 4.3%
Mixed-use development 1 4.3%
Mode of transport 1 4.3%
Motorcycle 1 4.3%
Multimodal interaction 1 4.3%
National Ambient Air Quality Standards 1 4.3%
Net metering 1 4.3%
Nissan Leaf 1 4.3%
North Park, San Diego 1 4.3%
Ozone 1 4.3%
Package delivery 1 4.3%
Pallet 1 4.3%
Paratransit 1 4.3%
Paris Agreement 1 4.3%
Particulates 1 4.3%
Petroleum industry 1 4.3%
Planetary boundaries 1 4.3%
Planning 1 4.3%
Plug-in hybrid 1 4.3%
Policy 1 4.3%
Politics of global warming 1 4.3%
Port 1 4.3%
Port of Long Beach 1 4.3%
Power outage 1 4.3%
Power-to-gas 1 4.3%
Primary energy 1 4.3%
Private equity 1 4.3%
Prototype 1 4.3%
Public art 1 4.3%
Public–private partnership 1 4.3%
Purchasing power parity 1 4.3%
Rail freight transport 1 4.3%
Rapid transit 1 4.3%
Rate of return 1 4.3%
Rebound effect (conservation) 1 4.3%
Regional integration 1 4.3%
Regression analysis 1 4.3%
Renewable energy in the European Union 1 4.3%
Resampling (statistics) 1 4.3%
Research 1 4.3%
Ring road 1 4.3%
Rush hour 1 4.3%
Samson and Goliath (cranes) 1 4.3%
Second Industrial Revolution 1 4.3%
Second law of thermodynamics 1 4.3%
Selective catalytic reduction 1 4.3%
Services (economics) 1 4.3%
Shared lane marking 1 4.3%
Shared mobility 1 4.3%
Ship 1 4.3%
Small and medium-sized enterprises 1 4.3%
Smart motorway 1 4.3%
Social cost 1 4.3%
State Implementation Plan 1 4.3%
Statistics 1 4.3%
Superfund 1 4.3%
Sustainable city 1 4.3%
Sustainable development 1 4.3%
System 1 4.3%
Tax deduction 1 4.3%
Taxicab 1 4.3%
Technology roadmap 1 4.3%
Telematics 1 4.3%
The Avenues, Salt Lake City 1 4.3%
Time 1 4.3%
Titanic Quarter 1 4.3%
Toll road 1 4.3%
Tourism 1 4.3%
Traffic calming 1 4.3%
Traffic collision 1 4.3%
Train 1 4.3%
Transactive energy 1 4.3%
Transit-oriented development 1 4.3%
Transportation planning 1 4.3%
U.S. Route 1 in Maryland 1 4.3%
U.S. Route 15 in Maryland 1 4.3%
U.S. Route 29 in Maryland 1 4.3%
U.S. Route 301 in Maryland 1 4.3%
U.S. Route 40 in Maryland 1 4.3%
U.S. Route 50 in Maryland 1 4.3%
U.S. state 1 4.3%
University Heights, San Diego 1 4.3%
Unmanned aerial vehicle 1 4.3%
Uptown, Dallas 1 4.3%
Urban freight distribution 1 4.3%
Urban geography 1 4.3%
Urban open space 1 4.3%
Utility 1 4.3%
Utility ratemaking 1 4.3%
Vehicle emissions control 1 4.3%
Vehicle insurance 1 4.3%
Vehicle miles traveled tax 1 4.3%
Vehicle-to-everything 1 4.3%
Vehicular ad hoc network 1 4.3%
Venture capital 1 4.3%
Victoria (District Electoral Area) 1 4.3%
Village 1 4.3%
Volatile organic compound 1 4.3%
Walking 1 4.3%
Warehouse 1 4.3%
Wind turbine 1 4.3%
Workforce 1 4.3%
Zero-emissions vehicle 1 4.3%

2017

abs rel
Human activities 59 81.9%
Transport 54 75.0%
Economy 50 69.4%
Technology 48 66.7%
Public transport 37 51.4%
Car 30 41.7%
Infrastructure 28 38.9%
Innovation 26 36.1%
Electric vehicle 24 33.3%
Greenhouse gas 24 33.3%
Road 24 33.3%
Self-driving car 24 33.3%
Sustainability 24 33.3%
Traffic 24 33.3%
Air pollution 22 30.6%
Land transport 22 30.6%
Rail transport 22 30.6%
Economic growth 21 29.2%
Employment 21 29.2%
Electrical grid 19 26.4%
Energy 19 26.4%
Tax 19 26.4%
Traffic congestion 19 26.4%
Vehicle 19 26.4%
Efficient energy use 18 25.0%
Energy development 17 23.6%
Highway 17 23.6%
Automation 16 22.2%
Electricity 15 20.8%
Nature 15 20.8%
Service industries 15 20.8%
Electric power 14 19.4%
Renewable energy 14 19.4%
Services (economics) 14 19.4%
Economic development 13 18.1%
Electric power transmission 13 18.1%
Electricity generation 13 18.1%
Market (economics) 13 18.1%
Road transport 13 18.1%
Smart grid 13 18.1%
Transportation engineering 13 18.1%
Artificial objects 12 16.7%
Charging station 12 16.7%
Demand response 12 16.7%
Distributed generation 12 16.7%
Logistics 12 16.7%
Low-carbon economy 12 16.7%
Smart meter 12 16.7%
Bus 11 15.3%
Cargo 11 15.3%
Cycling infrastructure 11 15.3%
Economics 11 15.3%
Grid energy storage 11 15.3%
Parking 11 15.3%
Subsidy 11 15.3%
Toll road 11 15.3%
Wind power 11 15.3%
Pedestrian 10 13.9%
Poverty 10 13.9%
Power (physics) 10 13.9%
Pricing 10 13.9%
Rapid transit 10 13.9%
Bus rapid transit 9 12.5%
Cycling 9 12.5%
Natural gas 9 12.5%
Pollution 9 12.5%
Power station 9 12.5%
Solar power 9 12.5%
Street 9 12.5%
Train 9 12.5%
Vehicular automation 9 12.5%
World energy consumption 9 12.5%
Commuting 8 11.1%
Electrical engineering 8 11.1%
Energy storage 8 11.1%
Fuel 8 11.1%
Petroleum 8 11.1%
Photovoltaics 8 11.1%
Policy 8 11.1%
Traffic collision 8 11.1%
Truck 8 11.1%
Affordable housing 7 9.7%
Carsharing 7 9.7%
Climate change mitigation 7 9.7%
Competition 7 9.7%
Demand 7 9.7%
Energy industry 7 9.7%
Finance 7 9.7%
Fuel economy in automobiles 7 9.7%
Hybrid vehicle 7 9.7%
Internet of things 7 9.7%
Kilowatt hour 7 9.7%
Mattapan 7 9.7%
Particulates 7 9.7%
Photovoltaic system 7 9.7%
Roxbury, Boston 7 9.7%
Rush hour 7 9.7%
Sidewalk 7 9.7%
Walkability 7 9.7%
Accessibility 6 8.3%
Climate resilience 6 8.3%
Computer network 6 8.3%
Controlled-access highway 6 8.3%
Cost of electricity by source 6 8.3%
Cost–benefit analysis 6 8.3%
Dorchester, Boston 6 8.3%
Electric power distribution 6 8.3%
Health 6 8.3%
Orange Line (MBTA) 6 8.3%
Retail 6 8.3%
Risk 6 8.3%
Road infrastructure 6 8.3%
Road traffic safety 6 8.3%
Sea level rise 6 8.3%
Supply chain 6 8.3%
Transport infrastructure 6 8.3%
Airport 5 6.9%
Bicycle 5 6.9%
Brighton, Boston 5 6.9%
Business 5 6.9%
Carbon tax 5 6.9%
Climate change 5 6.9%
Construction 5 6.9%
Diesel engine 5 6.9%
Disruptive innovation 5 6.9%
Economic inequality 5 6.9%
Education 5 6.9%
Electric battery 5 6.9%
Electricity pricing 5 6.9%
Emission standard 5 6.9%
Evaluation 5 6.9%
Flood 5 6.9%
Forest Hills station (MBTA) 5 6.9%
Green Line (MBTA) 5 6.9%
Light rail 5 6.9%
Performance indicator 5 6.9%
Physical quantities 5 6.9%
Port 5 6.9%
Power outage 5 6.9%
Public–private partnership 5 6.9%
Research 5 6.9%
Road pricing 5 6.9%
Sea 5 6.9%
Shared mobility 5 6.9%
Transactive energy 5 6.9%
Bicycle-sharing system 4 5.6%
City 4 5.6%
Complete streets 4 5.6%
Curb 4 5.6%
Economic sectors 4 5.6%
Electrical substation 4 5.6%
Emergency management 4 5.6%
Energy demand management 4 5.6%
Engine 4 5.6%
European emission standards 4 5.6%
Fossil fuel 4 5.6%
Gasoline 4 5.6%
Globalization 4 5.6%
Gross domestic product 4 5.6%
Health care 4 5.6%
High-occupancy vehicle lane 4 5.6%
Homelessness 4 5.6%
Household income in the United States 4 5.6%
Hydroelectricity 4 5.6%
Intersection (road) 4 5.6%
Investment 4 5.6%
Life-cycle assessment 4 5.6%
Mode of transport 4 5.6%
Next Generation Air Transportation System 4 5.6%
Nuclear power 4 5.6%
Price 4 5.6%
Price of oil 4 5.6%
Red Line (MBTA) 4 5.6%
Regional transmission organization (North America) 4 5.6%
Reliability engineering 4 5.6%
Rooftop photovoltaic power station 4 5.6%
Suburb 4 5.6%
Sustainable transport 4 5.6%
Taxicab 4 5.6%
Telecommuting 4 5.6%
Urban open space 4 5.6%
Urbanization 4 5.6%
Virtual power plant 4 5.6%
Wealth 4 5.6%
Zero-emissions vehicle 4 5.6%
Airbag 3 4.2%
Airline 3 4.2%
Analytics 3 4.2%
Ancillary services (electric power) 3 4.2%
Battery electric vehicle 3 4.2%
Carbon dioxide 3 4.2%
Carbon neutrality 3 4.2%
Civil engineering 3 4.2%
Coal 3 4.2%
Competition (economics) 3 4.2%
Congestion pricing 3 4.2%
Containerization 3 4.2%
Dudley Square station 3 4.2%
Dynamic pricing 3 4.2%
Electric car 3 4.2%
Emission intensity 3 4.2%
Emissions trading 3 4.2%
Energiewende in Germany 3 4.2%
Exhaust gas 3 4.2%
Externality 3 4.2%
Fuel efficiency 3 4.2%
Fuel tax 3 4.2%
Global warming 3 4.2%
High-speed rail 3 4.2%
Hurricane Maria 3 4.2%
Hybrid electric vehicle 3 4.2%
Income 3 4.2%
Interchange (road) 3 4.2%
Interest 3 4.2%
Intermodal freight transport 3 4.2%
Intermodal passenger transport 3 4.2%
Interstate 270 (Maryland) 3 4.2%
Interstate 495 (Capital Beltway) 3 4.2%
Investor 3 4.2%
Jamaica Plain 3 4.2%
Lane 3 4.2%
Low-carbon fuel standard 3 4.2%
Maintenance (technical) 3 4.2%
Manufacturing 3 4.2%
Mission Hill, Boston 3 4.2%
Mixed-use development 3 4.2%
Net metering 3 4.2%
Paratransit 3 4.2%
Park 3 4.2%
Pedestrian crossing 3 4.2%
Photovoltaic power station 3 4.2%
Pipeline transport 3 4.2%
Plug-in electric vehicle 3 4.2%
Plug-in hybrid 3 4.2%
Profit (economics) 3 4.2%
Projects of Common Interest 3 4.2%
Public policy 3 4.2%
Rail freight transport 3 4.2%
Recession 3 4.2%
Regulation 3 4.2%
Rumble strip 3 4.2%
Seat belt 3 4.2%
Ship 3 4.2%
Solar energy 3 4.2%
Systems engineering 3 4.2%
Tariff 3 4.2%
Transportation network company 3 4.2%
Urban planning 3 4.2%
Urban sprawl 3 4.2%
Variable renewable energy 3 4.2%
Vehicles 3 4.2%
Vehicular ad hoc network 3 4.2%
Agriculture 2 2.8%
Air traffic control 2 2.8%
Allston 2 2.8%
Appropriations bill (United States) 2 2.8%
Athens 2 2.8%
Automatic dependent surveillance – broadcast 2 2.8%
Automobile safety 2 2.8%
Automotive industry 2 2.8%
Availability 2 2.8%
Baltimore–Washington Parkway 2 2.8%
Bank 2 2.8%
Battery charger 2 2.8%
Best practice 2 2.8%
Biodiesel 2 2.8%
Bioswale 2 2.8%
Blue Line (MBTA) 2 2.8%
Business model 2 2.8%
Carbon footprint 2 2.8%
Carpool 2 2.8%
Charlestown, Boston 2 2.8%
Chesapeake Bay Bridge 2 2.8%
Commodity 2 2.8%
Community 2 2.8%
Community Development Block Grant 2 2.8%
Competition (companies) 2 2.8%
Connected car 2 2.8%
Corporate average fuel economy 2 2.8%
Credit 2 2.8%
Cyberattack 2 2.8%
Database 2 2.8%
Discounted cash flow 2 2.8%
Driving under the influence 2 2.8%
Duck curve 2 2.8%
Ecotax 2 2.8%
Effects of global warming 2 2.8%
Electrification 2 2.8%
Electromagnetism 2 2.8%
Emerald Necklace 2 2.8%
Environmental policy 2 2.8%
Expense 2 2.8%
Fee 2 2.8%
Fenway–Kenmore 2 2.8%
Forecasting 2 2.8%
Fossil fuel power station 2 2.8%
Fourth Amendment to the United States Constitution 2 2.8%
Freight transport 2 2.8%
Fuel cell vehicle 2 2.8%
Government 2 2.8%
Government spending 2 2.8%
Green Line Extension 2 2.8%
Green infrastructure 2 2.8%
Green vehicle 2 2.8%
Horsecar 2 2.8%
Human impact on the environment 2 2.8%
Hurricane Katrina 2 2.8%
Hurricane Sandy 2 2.8%
Hyde Park, Boston 2 2.8%
Hydraulic fracturing 2 2.8%
Impact evaluation 2 2.8%
Incentive 2 2.8%
Income inequality in the United States 2 2.8%
Industry 2 2.8%
Insurance 2 2.8%
Intelligent transportation system 2 2.8%
International development 2 2.8%
Interstate 370 2 2.8%
Interstate 49 in Louisiana 2 2.8%
Interstate 695 (Maryland) 2 2.8%
Interstate 70 in Maryland 2 2.8%
Interstate 795 (Maryland) 2 2.8%
Interstate 81 in Maryland 2 2.8%
Interstate 83 2 2.8%
Interstate 895 (Maryland) 2 2.8%
Interstate 95 in Maryland 2 2.8%
Interstate 97 2 2.8%
JFK/UMass station 2 2.8%
Jurong 2 2.8%
Knowledge economy 2 2.8%
Levelized cost of energy 2 2.8%
Load profile 2 2.8%
MBTA key bus routes 2 2.8%
Macroeconomics 2 2.8%
Managed lane 2 2.8%
Map 2 2.8%
Market penetration 2 2.8%
Maryland Route 144 2 2.8%
Maryland Route 198 2 2.8%
Maryland Route 2 2 2.8%
Maryland Route 200 2 2.8%
Maryland Route 206 2 2.8%
Maryland Route 210 2 2.8%
Maryland Route 235 2 2.8%
Maryland Route 4 2 2.8%
Maryland Route 586 2 2.8%
Maryland Route 675 2 2.8%
Mean time between failures 2 2.8%
Methane 2 2.8%
Metropolitan planning organization 2 2.8%
Mexico City 2 2.8%
Microgrid 2 2.8%
Millennials 2 2.8%
Mining 2 2.8%
Minneapolis–Saint Paul 2 2.8%
Mobile payment 2 2.8%
Mobility Pricing 2 2.8%
Narrative 2 2.8%
Net present value 2 2.8%
New Jersey Route 21 2 2.8%
Oil refinery 2 2.8%
Panama Canal 2 2.8%
Paris Agreement 2 2.8%
Parking lot 2 2.8%
Peaking power plant 2 2.8%
Pension 2 2.8%
Petroleum industry 2 2.8%
Population 2 2.8%
Port of Los Angeles 2 2.8%
Poverty reduction 2 2.8%
Productivity 2 2.8%
Property tax 2 2.8%
Psychological resilience 2 2.8%
Public transport accessibility level 2 2.8%
Regulatory compliance 2 2.8%
Resource 2 2.8%
Retirement 2 2.8%
Ridesharing company 2 2.8%
Ring road 2 2.8%
Risk management 2 2.8%
River Line (NJ Transit) 2 2.8%
Road space rationing 2 2.8%
Roslindale 2 2.8%
Safety 2 2.8%
Satellite 2 2.8%
Section 8 (housing) 2 2.8%
Sensitivity analysis 2 2.8%
Severe weather 2 2.8%
Slum 2 2.8%
Social exclusion 2 2.8%
Social media 2 2.8%
Stock 2 2.8%
Storm 2 2.8%
Storm surge 2 2.8%
Stormwater 2 2.8%
Streets of Albany, New York 2 2.8%
Supply-chain management 2 2.8%
Sustainable development 2 2.8%
Sustainable energy 2 2.8%
Tight oil 2 2.8%
Total harmonic distortion 2 2.8%
Tourism 2 2.8%
Traffic flow 2 2.8%
Trail 2 2.8%
Tree 2 2.8%
Tropical cyclone 2 2.8%
U.S. Route 1 in Maryland 2 2.8%
U.S. Route 13 Business (Salisbury, Maryland) 2 2.8%
U.S. Route 13 in Maryland 2 2.8%
U.S. Route 15 in Maryland 2 2.8%
U.S. Route 206 2 2.8%
U.S. Route 29 in Maryland 2 2.8%
U.S. Route 301 in Maryland 2 2.8%
U.S. Route 40 in Maryland 2 2.8%
U.S. Route 50 in Maryland 2 2.8%
United States Virgin Islands 2 2.8%
Unmanned aerial vehicle 2 2.8%
Urban renewal 2 2.8%
Utility 2 2.8%
Value capture 2 2.8%
Vehicle-to-grid 2 2.8%
Ventra 2 2.8%
Vignette (road tax) 2 2.8%
Warehouse 2 2.8%
Weather 2 2.8%
West Roxbury 2 2.8%
World Wide Web 2 2.8%
Zoning 2 2.8%
1973 oil crisis 1 1.4%
Academic degree 1 1.4%
Adverse selection 1 1.4%
Advertising 1 1.4%
Africa 1 1.4%
Airline hub 1 1.4%
Alewife station 1 1.4%
Alex Yam 1 1.4%
American Recovery and Reinvestment Act of 2009 1 1.4%
American Samoa 1 1.4%
Americans with Disabilities Act of 1990 1 1.4%
Annuity (European) 1 1.4%
Anti-lock braking system 1 1.4%
Aquaculture 1 1.4%
Arborist 1 1.4%
Architecture 1 1.4%
Asia 1 1.4%
Asian Highway Network 1 1.4%
Assembly line 1 1.4%
Asset management 1 1.4%
Assisted living 1 1.4%
Auction 1 1.4%
Autonomous car 1 1.4%
Bakken Formation 1 1.4%
Bankruptcy 1 1.4%
Barack Obama 1 1.4%
Barksdale Air Force Base 1 1.4%
Barrel (unit) 1 1.4%
Base load 1 1.4%
Behavior 1 1.4%
Big Sur 1 1.4%
Big Sur Coast Highway 1 1.4%
Biodiversity 1 1.4%
Biofuel 1 1.4%
Biogas 1 1.4%
Blockchain 1 1.4%
Blue economy 1 1.4%
Bond (finance) 1 1.4%
Boulevard 1 1.4%
Bridge 1 1.4%
Bridge scour 1 1.4%
Bridgewater, Nova Scotia 1 1.4%
Build to order (HDB) 1 1.4%
Bus contracting model of Singapore 1 1.4%
Business improvement district 1 1.4%
California County Routes in zone G 1 1.4%
Capacity building 1 1.4%
Capacity factor 1 1.4%
Capital market 1 1.4%
Car-free movement 1 1.4%
Carbon offset 1 1.4%
Carbon price 1 1.4%
Carbon pricing in Australia 1 1.4%
Cash transfer 1 1.4%
Cash transfers 1 1.4%
Catastrophe bond 1 1.4%
Census 1 1.4%
Chabahar Port 1 1.4%
Chemical equilibrium 1 1.4%
Chicago Metropolitan Agency for Planning 1 1.4%
Child labour 1 1.4%
Child poverty 1 1.4%
Chinatown, Boston 1 1.4%
Clean Air Act (United States) 1 1.4%
Cobalt 1 1.4%
Cobequid Pass 1 1.4%
Coefficient of determination 1 1.4%
Cogeneration 1 1.4%
Coliseum–Oakland International Airport line 1 1.4%
Collision avoidance system 1 1.4%
Combined cycle power plant 1 1.4%
Combined sewer 1 1.4%
Commodity market 1 1.4%
Compressed air energy storage 1 1.4%
Compressed natural gas 1 1.4%
Computable general equilibrium 1 1.4%
Computer programming 1 1.4%
Computer security 1 1.4%
Computing 1 1.4%
Consumer behaviour 1 1.4%
Consumer choice 1 1.4%
Consumption (economics) 1 1.4%
Contract 1 1.4%
Coral 1 1.4%
Coral reef 1 1.4%
Corporate finance 1 1.4%
Cost 1 1.4%
County Route 506 (New Jersey) 1 1.4%
County Route 514 (New Jersey) 1 1.4%
County Route 537 (New Jersey) 1 1.4%
County Route 544 (New Jersey) 1 1.4%
County Route 547 (New Jersey) 1 1.4%
County Route 551 (New Jersey) 1 1.4%
County Route 563 (New Jersey) 1 1.4%
County Route 571 (New Jersey) 1 1.4%
Creative industries 1 1.4%
Critical illness insurance 1 1.4%
Cross Island MRT line 1 1.4%
Cruise ship 1 1.4%
Cryptocurrency 1 1.4%
Cryptography 1 1.4%
Culture 1 1.4%
Cupertino, California 1 1.4%
Curb extension 1 1.4%
Cyberwarfare 1 1.4%
Dakota Access Pipeline 1 1.4%
Day trading 1 1.4%
Decentralization 1 1.4%
Deductible 1 1.4%
Deflation 1 1.4%
Delivery (commerce) 1 1.4%
Demand curve 1 1.4%
Derivative (finance) 1 1.4%
Desalination 1 1.4%
Developing country 1 1.4%
Diesel fuel 1 1.4%
Discrete choice 1 1.4%
Dividend 1 1.4%
Dividend policy 1 1.4%
Donald Trump 1 1.4%
Downtown 1 1.4%
Downtown MRT line 1 1.4%
Driver's license 1 1.4%
Dry port 1 1.4%
Due diligence 1 1.4%
Earthquake 1 1.4%
Earthquake insurance 1 1.4%
East Side Access 1 1.4%
Econometrics 1 1.4%
Economic equilibrium 1 1.4%
Economics of climate change mitigation 1 1.4%
Economy of China 1 1.4%
Economy of the United States 1 1.4%
Electric bicycle 1 1.4%
Electric bus 1 1.4%
Electric generator 1 1.4%
Electric power industry 1 1.4%
Electric power quality 1 1.4%
Electric power system 1 1.4%
Electronic toll collection 1 1.4%
Emergency medical services 1 1.4%
Emerging market 1 1.4%
Emerging technologies 1 1.4%
Endogeneity (econometrics) 1 1.4%
Energy conservation 1 1.4%
Energy efficiency in transport 1 1.4%
Energy management 1 1.4%
Energy policy 1 1.4%
Energy policy of the United Kingdom 1 1.4%
Energy production 1 1.4%
Energy security 1 1.4%
Energy transition 1 1.4%
Entrepreneurship 1 1.4%
Environmental justice 1 1.4%
Environmental law 1 1.4%
Environmental, social and corporate governance 1 1.4%
Equation 1 1.4%
Errors and residuals 1 1.4%
Euclidean vector 1 1.4%
Europe 1 1.4%
European Union Emission Trading Scheme 1 1.4%
Expo MRT station 1 1.4%
Factory 1 1.4%
Financial law 1 1.4%
Financial literacy 1 1.4%
Financial risk 1 1.4%
Financial services 1 1.4%
Financial statement 1 1.4%
Fiscal year 1 1.4%
Fishing 1 1.4%
Fixed point (mathematics) 1 1.4%
Food 1 1.4%
Fort Point, Boston 1 1.4%
Fraction 1 1.4%
Freelancer 1 1.4%
Fuel cell 1 1.4%
Fuerteventura 1 1.4%
Function (mathematics) 1 1.4%
Fund accounting 1 1.4%
Future proof 1 1.4%
Futures contract 1 1.4%
Garden State Parkway 1 1.4%
Gas 1 1.4%
Gasoline and diesel usage and pricing 1 1.4%
General equilibrium theory 1 1.4%
Goal 1 1.4%
Governance 1 1.4%
Government budget balance 1 1.4%
Government incentives for plug-in electric vehicles 1 1.4%
Gran Canaria 1 1.4%
Great Recession 1 1.4%
Green Line (Washington Metro) 1 1.4%
Greenhouse gas emissions 1 1.4%
Group home 1 1.4%
Harmonized sales tax 1 1.4%
Hazard 1 1.4%
Head-on collision 1 1.4%
Health insurance 1 1.4%
Health insurance coverage in the United States 1 1.4%
Heating, ventilation, and air conditioning 1 1.4%
Herbert Hoover 1 1.4%
Highway patrol 1 1.4%
Hillview, Singapore 1 1.4%
Hoboken Terminal 1 1.4%
Home insurance 1 1.4%
Household 1 1.4%
Housing First 1 1.4%
Housing discrimination (United States) 1 1.4%
Housing discrimination in the United States 1 1.4%
Housing trust fund 1 1.4%
Human resources 1 1.4%
Hydrogen economy 1 1.4%
Hydrogen vehicle 1 1.4%
Induced demand 1 1.4%
Inflation 1 1.4%
Input–output model 1 1.4%
Insurance-Linked Securities (ILS) 1 1.4%
Intermodal container 1 1.4%
Internal combustion engine 1 1.4%
International North–South Transport Corridor 1 1.4%
Internet 1 1.4%
Internship 1 1.4%
Interoperability 1 1.4%
Interstate 24 1 1.4%
Interstate 287 1 1.4%
Interstate 295 (Delaware–Pennsylvania) 1 1.4%
Interstate 40 in Tennessee 1 1.4%
Interstate 440 (Tennessee) 1 1.4%
Interstate 45 1 1.4%
Interstate 64 in Virginia 1 1.4%
Interstate 65 in Tennessee 1 1.4%
Interstate 76 (Ohio–New Jersey) 1 1.4%
Interstate 840 (Tennessee) 1 1.4%
Interstate 95 1 1.4%
Invasive species 1 1.4%
Iron ore 1 1.4%
Iterated function 1 1.4%
Jacobian matrix and determinant 1 1.4%
Jersey barrier 1 1.4%
John F. Kennedy International Airport 1 1.4%
Keystone Pipeline 1 1.4%
Kilowatt-hour 1 1.4%
Kusu Island 1 1.4%
La Gomera 1 1.4%
La Palma 1 1.4%
LaGuardia Airport 1 1.4%
Labour economics 1 1.4%
Labrador Nature Reserve 1 1.4%
Land management 1 1.4%
Land use 1 1.4%
Landscape 1 1.4%
Lane departure warning system 1 1.4%
Lanzarote 1 1.4%
Last mile 1 1.4%
Launch vehicle 1 1.4%
Lee Hsien Loong 1 1.4%
License 1 1.4%
Life annuity 1 1.4%
Life insurance 1 1.4%
Light pollution 1 1.4%
Liquefied natural gas 1 1.4%
Literacy 1 1.4%
Lithium iron phosphate 1 1.4%
Lithium-ion battery 1 1.4%
Load following power plant 1 1.4%
Load management 1 1.4%
Logarithm 1 1.4%
Logistic function 1 1.4%
London congestion charge 1 1.4%
Los Cristianos 1 1.4%
Lunch 1 1.4%
Luxury vehicle 1 1.4%
M-Pesa 1 1.4%
MBTA Commuter Rail 1 1.4%
Macroeconomic model 1 1.4%
Marine biology 1 1.4%
Maritime transport 1 1.4%
Market economy 1 1.4%
Market liquidity 1 1.4%
Market power 1 1.4%
Mass Rapid Transit (Singapore) 1 1.4%
Mathematical optimization 1 1.4%
Matrix (mathematics) 1 1.4%
Median strip 1 1.4%
Merit order 1 1.4%
Microeconomics 1 1.4%
Microfinance 1 1.4%
Microinsurance 1 1.4%
Microsimulation 1 1.4%
Minimum wage 1 1.4%
Mixed-income housing 1 1.4%
Mobile app 1 1.4%
Mobile phone 1 1.4%
Modularity 1 1.4%
Monopoly 1 1.4%
Moral hazard 1 1.4%
Mortgage loan 1 1.4%
Motor vehicle 1 1.4%
Motorcycle 1 1.4%
NOx 1 1.4%
National Bridge Inventory 1 1.4%
National security 1 1.4%
Natural gas vehicle 1 1.4%
Natural resource 1 1.4%
Natural resources 1 1.4%
Nature Society (Singapore) 1 1.4%
Nature reserve 1 1.4%
Neighborhoods in Boston 1 1.4%
Neighbourhood 1 1.4%
Network effect 1 1.4%
New Jersey Route 168 1 1.4%
New Jersey Route 17 1 1.4%
New Jersey Route 18 1 1.4%
New Jersey Route 3 1 1.4%
New Jersey Route 33 1 1.4%
New Jersey Route 35 1 1.4%
New Jersey Route 45 1 1.4%
New Jersey Route 47 1 1.4%
New Jersey Route 70 1 1.4%
New Jersey Route 73 1 1.4%
Newark Liberty International Airport 1 1.4%
Noise pollution 1 1.4%
Nominal power (photovoltaic) 1 1.4%
Nonlinear system 1 1.4%
North End, Boston 1 1.4%
North Station 1 1.4%
North Tarrant Express 1 1.4%
Northern line extension to Battersea 1 1.4%
Occupational safety and health 1 1.4%
Oil sands 1 1.4%
OneWeb satellite constellation 1 1.4%
Online shopping 1 1.4%
Open source 1 1.4%
Orange Line (Los Angeles Metro) 1 1.4%
Ordinary least squares 1 1.4%
Over-the-counter (finance) 1 1.4%
Parklet 1 1.4%
Passing lane 1 1.4%
Paterson Plank Road 1 1.4%
Peak demand 1 1.4%
Peak oil 1 1.4%
Permeable paving 1 1.4%
Petroleum reservoir 1 1.4%
Phencyclidine 1 1.4%
Placemaking 1 1.4%
Planning 1 1.4%
Poaching 1 1.4%
Politics of global warming 1 1.4%
Population health 1 1.4%
Port of Baku 1 1.4%
Pothole 1 1.4%
Poverty in the United States 1 1.4%
Powertrain 1 1.4%
Pre-kindergarten 1 1.4%
Primary energy 1 1.4%
Private pension 1 1.4%
Privatization 1 1.4%
Production (economics) 1 1.4%
Public Utility Regulatory Policies Act 1 1.4%
Public art 1 1.4%
Public health 1 1.4%
Public housing 1 1.4%
Public space 1 1.4%
Public transport bus service 1 1.4%
Public utility 1 1.4%
Public-key cryptography 1 1.4%
Purple Line (Maryland) 1 1.4%
Quality of life 1 1.4%
Race and ethnicity in the United States 1 1.4%
Race and ethnicity in the United States Census 1 1.4%
Raised pavement marker 1 1.4%
Rate of return 1 1.4%
Readville station 1 1.4%
Rechargeable battery 1 1.4%
Regression analysis 1 1.4%
Reinsurance 1 1.4%
Renewable energy commercialization 1 1.4%
Request for proposal 1 1.4%
Risk assessment 1 1.4%
Road surface 1 1.4%
Robot 1 1.4%
Robust decision-making 1 1.4%
Roundabout 1 1.4%
Royal assent 1 1.4%
SCADA 1 1.4%
Sagar Mala project 1 1.4%
Salary 1 1.4%
Sales tax 1 1.4%
Sanitary sewer 1 1.4%
Sanitary sewer overflow 1 1.4%
Scalability 1 1.4%
Shared space 1 1.4%
Sharing economy 1 1.4%
Shoulder (road) 1 1.4%
Silver Line (Washington Metro) 1 1.4%
Simulation 1 1.4%
Singaporean nationality law 1 1.4%
Sisters' Islands Marine Park 1 1.4%
Small and medium-sized enterprises 1 1.4%
Smart charging 1 1.4%
Smart city 1 1.4%
Smart port 1 1.4%
Smart thermostat 1 1.4%
Smelting 1 1.4%
Snow 1 1.4%
Snow removal 1 1.4%
Solar panel 1 1.4%
Solvency II Directive 2009 1 1.4%
South End, Boston 1 1.4%
Spaceflight 1 1.4%
Special education 1 1.4%
Speed limit 1 1.4%
Stagflation 1 1.4%
Standard deviation 1 1.4%
Stevens Creek (California) 1 1.4%
Strait of Malacca 1 1.4%
Strategic management 1 1.4%
Strategy 1 1.4%
Sullivan Square 1 1.4%
Sullivan Square station 1 1.4%
Sungei Buloh Wetland Reserve 1 1.4%
Surface runoff 1 1.4%
Sustainable Development Goals 1 1.4%
Sustainable technologies 1 1.4%
System dynamics 1 1.4%
Taxicabs of the United Kingdom 1 1.4%
Tenerife 1 1.4%
Tennessee State Route 155 1 1.4%
Tennessee State Route 386 1 1.4%
Term life insurance 1 1.4%
Territories of the United States 1 1.4%
Tesla Autopilot 1 1.4%
Text messaging 1 1.4%
Tf–idf 1 1.4%
Thai Canal 1 1.4%
Thomson–East Coast MRT line 1 1.4%
Time 1 1.4%
Traffic enforcement camera 1 1.4%
Traffic light 1 1.4%
Tram 1 1.4%
Trans-Asian Railway 1 1.4%
Transit-oriented development 1 1.4%
Transportation Investment Generating Economic Recovery 1 1.4%
Transportation planning 1 1.4%
Truck driver 1 1.4%
Trucking industry in the United States 1 1.4%
Tunnel 1 1.4%
U.S. Route 1 in Massachusetts 1 1.4%
U.S. Route 130 1 1.4%
U.S. Route 31A 1 1.4%
U.S. state 1 1.4%
Underinsurance (healthcare) 1 1.4%
Underwriting 1 1.4%
Unemployment 1 1.4%
Unfair dismissal in the United Kingdom 1 1.4%
Units of transportation measurement 1 1.4%
Uptown Houston 1 1.4%
Urban design 1 1.4%
Urban economics 1 1.4%
Urban freight distribution 1 1.4%
Urban heat island 1 1.4%
Used car 1 1.4%
Utility ratemaking 1 1.4%
Valuation (finance) 1 1.4%
Vector space 1 1.4%
Vehicle emission standard 1 1.4%
Vehicular ad-hoc network 1 1.4%
Venture capital 1 1.4%
Violence 1 1.4%
Wage 1 1.4%
Washington Street (Boston) 1 1.4%
Watt 1 1.4%
Welfare 1 1.4%
White Americans 1 1.4%
Wind turbine 1 1.4%
World energy supply and consumption 1 1.4%

2018

abs rel
Human activities 54 85.7%
Transport 53 84.1%
Economy 37 58.7%
Public transport 34 54.0%
Sustainability 32 50.8%
Infrastructure 29 46.0%
Technology 28 44.4%
Car 22 34.9%
Road 22 34.9%
Land transport 21 33.3%
Traffic 20 31.7%
Self-driving car 19 30.2%
Economic growth 18 28.6%
Parking 18 28.6%
Rail transport 18 28.6%
Street 17 27.0%
Tax 17 27.0%
Cycling 15 23.8%
Greenhouse gas 15 23.8%
Innovation 15 23.8%
Traffic congestion 15 23.8%
Bus 14 22.2%
Economic development 14 22.2%
Electric vehicle 14 22.2%
Pedestrian 14 22.2%
Service industries 14 22.2%
Transportation engineering 14 22.2%
Air pollution 13 20.6%
Bicycle-sharing system 13 20.6%
Climate change mitigation 13 20.6%
Employment 13 20.6%
Energy 13 20.6%
Low-carbon economy 12 19.0%
Market (economics) 12 19.0%
Automation 11 17.5%
Business 11 17.5%
Charging station 11 17.5%
Construction 11 17.5%
Cycling infrastructure 11 17.5%
Electrical grid 11 17.5%
Poverty 11 17.5%
Vehicle 11 17.5%
Affordable housing 10 15.9%
Complete streets 10 15.9%
Efficient energy use 10 15.9%
Investment 10 15.9%
Rapid transit 10 15.9%
Urban planning 10 15.9%
Accessibility 9 14.3%
Artificial objects 9 14.3%
Bicycle 9 14.3%
Chicago Metropolitan Agency for Planning 9 14.3%
Economics 9 14.3%
Finance 9 14.3%
Logistics 9 14.3%
Road transport 9 14.3%
Services (economics) 9 14.3%
Suburb 9 14.3%
Sustainable transport 9 14.3%
Infill 8 12.7%
Retail 8 12.7%
Stormwater 8 12.7%
Train 8 12.7%
Zoning 8 12.7%
Battery electric vehicle 7 11.1%
Cargo 7 11.1%
City 7 11.1%
Clean Air Act (United States) 7 11.1%
Commuting 7 11.1%
Flood 7 11.1%
Fuel 7 11.1%
Fuel economy in automobiles 7 11.1%
Gasoline 7 11.1%
Green infrastructure 7 11.1%
Health 7 11.1%
Highway 7 11.1%
Plug-in hybrid 7 11.1%
Renewable energy 7 11.1%
Risk 7 11.1%
Road traffic safety 7 11.1%
Sidewalk 7 11.1%
Transportation planning 7 11.1%
Urban forestry 7 11.1%
Walkability 7 11.1%
Airport 6 9.5%
Best practice 6 9.5%
Climate resilience 6 9.5%
Competition 6 9.5%
Economic inequality 6 9.5%
Electric battery 6 9.5%
Electricity 6 9.5%
Governance 6 9.5%
Hybrid electric vehicle 6 9.5%
Lane 6 9.5%
Natural gas 6 9.5%
Park 6 9.5%
Pedestrian crossing 6 9.5%
Plug-in electric vehicle 6 9.5%
Policy 6 9.5%
Public transport bus service 6 9.5%
Road infrastructure 6 9.5%
Solar power 6 9.5%
Subsidy 6 9.5%
Sustainable development 6 9.5%
Transport infrastructure 6 9.5%
Brownfield land 5 7.9%
Built environment 5 7.9%
Carpool 5 7.9%
Climate change 5 7.9%
Community 5 7.9%
Comprehensive planning 5 7.9%
Development aid 5 7.9%
Electric car 5 7.9%
Energy development 5 7.9%
Energy storage 5 7.9%
Engine 5 7.9%
Fee 5 7.9%
Fuel cell vehicle 5 7.9%
Hybrid vehicle 5 7.9%
Intersection (road) 5 7.9%
Mode of transport 5 7.9%
Nature 5 7.9%
Placemaking 5 7.9%
Property tax 5 7.9%
Redlining 5 7.9%
Resource 5 7.9%
Rush hour 5 7.9%
Strategy 5 7.9%
Traffic flow 5 7.9%
Trail 5 7.9%
Truck 5 7.9%
Vehicles 5 7.9%
Workforce 5 7.9%
Workforce development 5 7.9%
World energy consumption 5 7.9%
Bus stop 4 6.3%
Business model 4 6.3%
Computer security 4 6.3%
Culture 4 6.3%
Electricity generation 4 6.3%
Fossil fuel 4 6.3%
Global warming 4 6.3%
Metropolitan planning organization 4 6.3%
Mobility as a service 4 6.3%
Obesity 4 6.3%
Paratransit 4 6.3%
Photovoltaics 4 6.3%
Public–private partnership 4 6.3%
Research 4 6.3%
Ridesharing company 4 6.3%
Safety 4 6.3%
Shared mobility 4 6.3%
Smart city 4 6.3%
Street light 4 6.3%
Taxicab 4 6.3%
Traffic collision 4 6.3%
Unemployment 4 6.3%
Urban heat island 4 6.3%
Vehicular automation 4 6.3%
Zero-emissions vehicle 4 6.3%
Active mobility 3 4.8%
Agriculture 3 4.8%
Alternative fuel 3 4.8%
Americans with Disabilities Act of 1990 3 4.8%
Bank 3 4.8%
Bicycle boulevard 3 4.8%
Bioswale 3 4.8%
Blue Line (CTA) 3 4.8%
Bus lane 3 4.8%
Bus rapid transit 3 4.8%
Business incubator 3 4.8%
Cermak Road 3 4.8%
Competition (companies) 3 4.8%
Computer network 3 4.8%
Controlled-access highway 3 4.8%
Debt 3 4.8%
Distributed generation 3 4.8%
Drinking water 3 4.8%
Electric power 3 4.8%
Electric power transmission 3 4.8%
Electricity pricing 3 4.8%
Energy conservation 3 4.8%
Entrepreneurship 3 4.8%
Expense 3 4.8%
Frontage road 3 4.8%
Fuel cell 3 4.8%
Fuel efficiency 3 4.8%
Goal 3 4.8%
Grid energy storage 3 4.8%
Grocery store 3 4.8%
Gross domestic product 3 4.8%
Hyperloop 3 4.8%
Interest 3 4.8%
Intermodal passenger transport 3 4.8%
Internal combustion engine 3 4.8%
Investor 3 4.8%
Light rail 3 4.8%
Living wage 3 4.8%
Local government 3 4.8%
Manufacturing 3 4.8%
Market analysis 3 4.8%
Median strip 3 4.8%
Mortgage loan 3 4.8%
Natural environment 3 4.8%
Natural resource 3 4.8%
North Lawndale, Chicago 3 4.8%
Photovoltaic system 3 4.8%
Pink Line (CTA) 3 4.8%
Port 3 4.8%
Pricing 3 4.8%
Productivity 3 4.8%
Public health 3 4.8%
Rail freight transport 3 4.8%
Revenue 3 4.8%
Sales 3 4.8%
Sales tax 3 4.8%
Smart grid 3 4.8%
Solar energy 3 4.8%
Speed bump 3 4.8%
Speed limit 3 4.8%
Startup company 3 4.8%
Supply chain 3 4.8%
Sustainable technologies 3 4.8%
Tariff 3 4.8%
Tax increment financing 3 4.8%
Toll road 3 4.8%
Tourism 3 4.8%
Traffic calming 3 4.8%
Traffic light 3 4.8%
Transportation network company 3 4.8%
Vocational education 3 4.8%
Water 3 4.8%
Wind power 3 4.8%
Ageing 2 3.2%
Amtrak Cascades 2 3.2%
Analytics 2 3.2%
Apprenticeship 2 3.2%
Artificial intelligence 2 3.2%
Automotive industry 2 3.2%
Autonomous car 2 3.2%
Brisbane 2 3.2%
Brisbane Airport 2 3.2%
Brisbane central business district 2 3.2%
Bukit Panjang LRT line 2 3.2%
Bus contracting model of Singapore 2 3.2%
Business process 2 3.2%
Busways in Brisbane 2 3.2%
California Environmental Quality Act 2 3.2%
Capacity building 2 3.2%
Chūō Shinkansen 2 3.2%
Circle MRT line 2 3.2%
Civil engineering 2 3.2%
Climate change adaptation 2 3.2%
Combustion 2 3.2%
Commuter rail 2 3.2%
Concentrated poverty 2 3.2%
Congestion pricing 2 3.2%
Cost–benefit analysis 2 3.2%
Cross River Rail 2 3.2%
Curb 2 3.2%
Demand 2 3.2%
Demand responsive transport 2 3.2%
Diesel engine 2 3.2%
Disability 2 3.2%
District heating 2 3.2%
Downtown MRT line 2 3.2%
Ecological resilience 2 3.2%
Ecology 2 3.2%
Education 2 3.2%
Electrical engineering 2 3.2%
Electrification 2 3.2%
Electromagnetic suspension 2 3.2%
Emergency management 2 3.2%
Emission intensity 2 3.2%
Emission standard 2 3.2%
Emissions trading 2 3.2%
Energiewende in Germany 2 3.2%
Energy industry 2 3.2%
Energy policy of the United States 2 3.2%
Energy subsidy 2 3.2%
Exchange rate 2 3.2%
Exhaust gas 2 3.2%
Fuel tax 2 3.2%
Government incentives for plug-in electric vehicles 2 3.2%
High-occupancy vehicle lane 2 3.2%
Housing segregation in the United States 2 3.2%
Human capital 2 3.2%
Incentive 2 3.2%
Inductive charging 2 3.2%
Industry 2 3.2%
Inflation 2 3.2%
Intelligent transportation system 2 3.2%
Interest rate 2 3.2%
Internet of things 2 3.2%
Interstate 40 in Tennessee 2 3.2%
Interstate 65 in Tennessee 2 3.2%
Interstate 840 (Tennessee) 2 3.2%
Jurong 2 3.2%
Kilowatt hour 2 3.2%
Labour economics 2 3.2%
Level of service 2 3.2%
Maglev 2 3.2%
Managed lane 2 3.2%
Manufactured goods 2 3.2%
Mass Rapid Transit (Singapore) 2 3.2%
Microgrid 2 3.2%
NOx 2 3.2%
North–South Corridor, Singapore 2 3.2%
Owner-occupancy 2 3.2%
Paris Agreement 2 3.2%
Peer-to-peer ridesharing 2 3.2%
Petroleum 2 3.2%
Pollution 2 3.2%
Power (physics) 2 3.2%
Power outage 2 3.2%
Price of oil 2 3.2%
Public policy 2 3.2%
Purchasing power parity 2 3.2%
Regional transmission organization (North America) 2 3.2%
Reliability engineering 2 3.2%
Residential segregation in the United States 2 3.2%
Roundabout 2 3.2%
Shanghai maglev train 2 3.2%
Software development 2 3.2%
Streeterville 2 3.2%
Sustainable Development Goals 2 3.2%
Sustainable energy 2 3.2%
Tax policy 2 3.2%
Taxi 2 3.2%
Telecommuting 2 3.2%
Tennessee State Route 155 2 3.2%
Thomson–East Coast MRT line 2 3.2%
TransApex 2 3.2%
Transit-oriented development 2 3.2%
Transportation demand management 2 3.2%
Truck driver 2 3.2%
U.S. Route 31 2 3.2%
Urban freight distribution 2 3.2%
Urban sprawl 2 3.2%
Urbanization 2 3.2%
Value-added tax 2 3.2%
Vehicle technology 2 3.2%
Venture capital 2 3.2%
Walking 2 3.2%
Watt 2 3.2%
Welfare 2 3.2%
West Garfield Park, Chicago 2 3.2%
21st-century modernisation of the Great Western main line 1 1.6%
A48 road 1 1.6%
AC power 1 1.6%
AC power plugs and sockets 1 1.6%
Access management 1 1.6%
Advanced persistent threat 1 1.6%
Africa 1 1.6%
African Americans 1 1.6%
Airline 1 1.6%
Airplane 1 1.6%
All-electric range 1 1.6%
Alley 1 1.6%
Alternative energy 1 1.6%
Annual average daily traffic 1 1.6%
Architecture 1 1.6%
Asia 1 1.6%
Asphalt concrete 1 1.6%
Asset-backed security 1 1.6%
Atmosphere of Earth 1 1.6%
Audi R18 1 1.6%
Automobile dependency 1 1.6%
Autonomy 1 1.6%
Ballarat 1 1.6%
Baltimore–Washington Parkway 1 1.6%
Battery charger 1 1.6%
Bay Street station 1 1.6%
Belt and Road Initiative 1 1.6%
Benchmarking 1 1.6%
Big Three (automobile manufacturers) 1 1.6%
Big data 1 1.6%
Biodiesel 1 1.6%
Biofuel 1 1.6%
Blockchain 1 1.6%
Blue Line (San Diego Trolley) 1 1.6%
Body mass index 1 1.6%
Borderlands line 1 1.6%
Brisbane Metro 1 1.6%
Bristol Temple Meads railway station 1 1.6%
Building code 1 1.6%
CHAdeMO 1 1.6%
Cabin John Parkway 1 1.6%
Calcium hydroxide 1 1.6%
Caltrain 1 1.6%
Capacity factor 1 1.6%
Carbon dioxide 1 1.6%
Carbon footprint 1 1.6%
Carbon neutrality 1 1.6%
Carbon sequestration 1 1.6%
Carburetor 1 1.6%
Cardiff 1 1.6%
Cars 1 1.6%
Catalytic converter 1 1.6%
Central Asia 1 1.6%
Central heating 1 1.6%
Chesapeake Bay Bridge 1 1.6%
Cheshire 1 1.6%
Chester 1 1.6%
Chester railway station 1 1.6%
Chiller 1 1.6%
China–Pakistan Economic Corridor 1 1.6%
CityLink 1 1.6%
Clean technology 1 1.6%
Clem Jones Tunnel 1 1.6%
Coal 1 1.6%
Cogeneration 1 1.6%
Colonial Pipeline 1 1.6%
Combined Charging System 1 1.6%
Combined sewer 1 1.6%
Communications-based train control 1 1.6%
Community Development Block Grant 1 1.6%
Community health 1 1.6%
Commuter town 1 1.6%
Compact car 1 1.6%
Compression ratio 1 1.6%
Concorde 1 1.6%
Concrete 1 1.6%
Connected car 1 1.6%
Consumption (economics) 1 1.6%
Containerization 1 1.6%
Continuously variable transmission 1 1.6%
Contract 1 1.6%
Corporate average fuel economy 1 1.6%
County Route 514 (New Jersey) 1 1.6%
County Route 537 (New Jersey) 1 1.6%
County Route 551 (New Jersey) 1 1.6%
Credit 1 1.6%
Credit risk 1 1.6%
Crewe railway station 1 1.6%
Crime prevention through environmental design 1 1.6%
Crossover (automobile) 1 1.6%
Customer-relationship management 1 1.6%
Cyber insurance 1 1.6%
Cyberattack 1 1.6%
Cybercrime 1 1.6%
Cyberwarfare 1 1.6%
Dam 1 1.6%
Decentralization 1 1.6%
Deficit spending 1 1.6%
Delivery (commerce) 1 1.6%
Demography 1 1.6%
Demography of the United States 1 1.6%
Depreciation 1 1.6%
Diesel fuel 1 1.6%
Diesel generator 1 1.6%
Digitization 1 1.6%
Direct current 1 1.6%
Disaster risk reduction 1 1.6%
Discrimination 1 1.6%
Disposable household and per capita income 1 1.6%
Disruptive innovation 1 1.6%
Distribution center 1 1.6%
Dodd–Frank Wall Street Reform and Consumer Protection Act 1 1.6%
E85 1 1.6%
East West Link (Melbourne) 1 1.6%
EastLink (Melbourne) 1 1.6%
Economic development incentive 1 1.6%
Economic equilibrium 1 1.6%
Economic globalization 1 1.6%
Economics of climate change mitigation 1 1.6%
Economy of Wales 1 1.6%
Economy of the United Kingdom 1 1.6%
Economy of the United States 1 1.6%
Electric energy consumption 1 1.6%
Electric power industry 1 1.6%
Electric vehicles 1 1.6%
Electromagnetism 1 1.6%
Electronic toll collection 1 1.6%
Energiewende 1 1.6%
Energy efficiency in transport 1 1.6%
Energy in transport 1 1.6%
Energy market 1 1.6%
Energy policy 1 1.6%
Energy poverty 1 1.6%
Energy security 1 1.6%
Energy service company 1 1.6%
Energy transition 1 1.6%
Energy-efficient driving 1 1.6%
Engine-generator 1 1.6%
Engines 1 1.6%
Environmental impact assessment 1 1.6%
Environmental impact of transport 1 1.6%
Environmental justice 1 1.6%
Environmental social science 1 1.6%
Eur-Lex 1 1.6%
Euro 1 1.6%
EuroVelo 1 1.6%
Exercise 1 1.6%
Externality 1 1.6%
Fare 1 1.6%
Feasibility study 1 1.6%
Feed-in tariff 1 1.6%
Ferry 1 1.6%
Financial services 1 1.6%
Fiscal policy 1 1.6%
Flexible-fuel vehicle 1 1.6%
Flue-gas desulfurization 1 1.6%
Ford F-Series 1 1.6%
Four-stroke engine 1 1.6%
Free market 1 1.6%
Fuel poverty 1 1.6%
Fuel poverty in the United Kingdom 1 1.6%
Fuel taxes in the United States 1 1.6%
Funding 1 1.6%
G20 1 1.6%
Gasoline and diesel usage and pricing 1 1.6%
Gasoline direct injection 1 1.6%
Geelong 1 1.6%
Generalised cost 1 1.6%
Geographic information system 1 1.6%
Geopolitics 1 1.6%
Geostrategy 1 1.6%
Gini coefficient 1 1.6%
Global Warming Solutions Act of 2006 1 1.6%
Globalization 1 1.6%
Government budget balance 1 1.6%
Government debt 1 1.6%
Great Western main line 1 1.6%
Green vehicle 1 1.6%
Greenway (landscape) 1 1.6%
Grid plan 1 1.6%
HAZWOPER 1 1.6%
Health equity 1 1.6%
Heating, ventilation, and air conditioning 1 1.6%
High frequency 1 1.6%
High-speed rail 1 1.6%
Hispanic and Latino Americans 1 1.6%
Home zone 1 1.6%
Honda Clarity 1 1.6%
Housing First 1 1.6%
Human Development Index 1 1.6%
Hydrogen vehicle 1 1.6%
Hyundai Sonata 1 1.6%
Idle reduction 1 1.6%
Immigration 1 1.6%
Incandescent light bulb 1 1.6%
Income 1 1.6%
Indirect land use change impacts of biofuels 1 1.6%
Induced demand 1 1.6%
Information technology 1 1.6%
Inland Railway 1 1.6%
Insurance 1 1.6%
Intended Nationally Determined Contributions 1 1.6%
Intended nationally determined contributions 1 1.6%
Interchange (road) 1 1.6%
Intermodal freight transport 1 1.6%
Internet 1 1.6%
Interoperability 1 1.6%
Interstate 24 1 1.6%
Interstate 270 (Maryland) 1 1.6%
Interstate 278 1 1.6%
Interstate 290 (Illinois) 1 1.6%
Interstate 294 1 1.6%
Interstate 355 1 1.6%
Interstate 495 (Capital Beltway) 1 1.6%
Interstate 495 (Massachusetts) 1 1.6%
Interstate 5 1 1.6%
Interstate 55 in Illinois 1 1.6%
Interstate 695 (Maryland) 1 1.6%
Interstate 70 in Maryland 1 1.6%
Interstate 80 in Illinois 1 1.6%
Interstate 81 in Maryland 1 1.6%
Interstate 83 1 1.6%
Interstate 895 1 1.6%
Interstate 90 in Illinois 1 1.6%
Interstate 93 1 1.6%
Interstate 94 in Illinois 1 1.6%
Interstate 95 in Maryland 1 1.6%
Interstate 95 in Massachusetts 1 1.6%
Interstate 97 1 1.6%
Inventory 1 1.6%
Islanding 1 1.6%
Journey planner 1 1.6%
Kennedy Expressway 1 1.6%
Kilowatt-hour 1 1.6%
LED lamp 1 1.6%
Land management 1 1.6%
Land use 1 1.6%
Land use, land-use change, and forestry 1 1.6%
Land vehicles 1 1.6%
Land-use planning 1 1.6%
Lawn 1 1.6%
Legacy Way 1 1.6%
Levee 1 1.6%
Level of service (transportation) 1 1.6%
Leverage (finance) 1 1.6%
Life insurance 1 1.6%
Life-cycle assessment 1 1.6%
Light-emitting diode 1 1.6%
Lighting 1 1.6%
Liquefied natural gas 1 1.6%
Liquefied petroleum gas 1 1.6%
Liverpool 1 1.6%
Loan 1 1.6%
Local economic development 1 1.6%
Locomotive 1 1.6%
Logan International Airport 1 1.6%
Low-carbon fuel standard 1 1.6%
Lumen (unit) 1 1.6%
Luxury car 1 1.6%
M4 motorway 1 1.6%
M80 Ring Road, Melbourne 1 1.6%
MBTA Commuter Rail 1 1.6%
Macroeconomics 1 1.6%
Macroprudential regulation 1 1.6%
Manchester 1 1.6%
Mandatory renewable energy target 1 1.6%
Marine energy 1 1.6%
Marketing 1 1.6%
Maryland Route 140 1 1.6%
Maryland Route 2 1 1.6%
Maryland Route 32 1 1.6%
Maryland Route 5 1 1.6%
Massachusetts Turnpike 1 1.6%
Mathematical optimization 1 1.6%
Mechanical engineering 1 1.6%
Melbourne 1 1.6%
Melbourne Airport 1 1.6%
Mentorship 1 1.6%
Mercury-vapor lamp 1 1.6%
Merseyside 1 1.6%
Metro Tunnel 1 1.6%
Mexico–United States border 1 1.6%
Microeconomics 1 1.6%
Millennials 1 1.6%
Mini-grids 1 1.6%
Mining 1 1.6%
Minority group 1 1.6%
Mobile payment 1 1.6%
Monash Freeway 1 1.6%
Monopoly 1 1.6%
Monroe County, Indiana 1 1.6%
Motor vehicles 1 1.6%
Motorcycle 1 1.6%
Municipalization 1 1.6%
Murray Basin Rail Project 1 1.6%
National Flood Insurance Program 1 1.6%
National Income and Product Accounts 1 1.6%
Net metering 1 1.6%
Net present value 1 1.6%
New Jersey Route 23 1 1.6%
New Jersey Route 31 1 1.6%
New Jersey Route 33 1 1.6%
New Jersey Route 4 1 1.6%
New Jersey Route 45 1 1.6%
New Jersey Route 47 1 1.6%
New Jersey Route 49 1 1.6%
New Jersey Route 73 1 1.6%
New York City Subway 1 1.6%
Newport railway station 1 1.6%
Nordic countries 1 1.6%
North East Link 1 1.6%
North Wales Coast Line 1 1.6%
North West England 1 1.6%
NorthConnect 1 1.6%
Northeast Corridor 1 1.6%
Northern Powerhouse 1 1.6%
Northern Powerhouse Rail 1 1.6%
Off-the-grid 1 1.6%
Offshore wind power 1 1.6%
Oil refinery 1 1.6%
Old York Road 1 1.6%
Option (finance) 1 1.6%
Otay Mesa, San Diego 1 1.6%
Overhead (business) 1 1.6%
Ownership 1 1.6%
Ozone 1 1.6%
Pace (transit) 1 1.6%
Park and ride 1 1.6%
Particulates 1 1.6%
Partnership 1 1.6%
Passenger rail terminology 1 1.6%
Passenger rail transport 1 1.6%
Peak oil 1 1.6%
Pension 1 1.6%
Permeable paving 1 1.6%
Petroleum industry 1 1.6%
Physical activity 1 1.6%
Physical quantities 1 1.6%
Pickup truck 1 1.6%
Pigovian tax 1 1.6%
Pipeline transport 1 1.6%
Planning 1 1.6%
Politics 1 1.6%
Politics of global warming 1 1.6%
Population 1 1.6%
Port of Boston 1 1.6%
Port of Melbourne 1 1.6%
Positive train control 1 1.6%
Poverty threshold 1 1.6%
Power station 1 1.6%
Power-to-X 1 1.6%
Powertrain 1 1.6%
Present value 1 1.6%
Price 1 1.6%
Princes Freeway 1 1.6%
Privacy 1 1.6%
Private finance initiative 1 1.6%
Privatization 1 1.6%
Profit (economics) 1 1.6%
Protected area 1 1.6%
Protected intersection 1 1.6%
Public finance 1 1.6%
Public housing 1 1.6%
Racial segregation in the United States 1 1.6%
Rail trail 1 1.6%
Rail transportation in the United States 1 1.6%
Railroad classes 1 1.6%
Railway electrification system 1 1.6%
Ramp meter 1 1.6%
Rapibus 1 1.6%
Rare-earth element 1 1.6%
Real estate appraisal 1 1.6%
Real-time computing 1 1.6%
Reason 1 1.6%
Recession 1 1.6%
Recycling 1 1.6%
Regional integration 1 1.6%
Regulatory compliance 1 1.6%
Reinsurance 1 1.6%
Renewable energy commercialization 1 1.6%
Renewable fuels 1 1.6%
Renewable resource 1 1.6%
Rental Assistance Demonstration 1 1.6%
Research and development 1 1.6%
Reservoir 1 1.6%
Resource curse 1 1.6%
Restriction of Hazardous Substances Directive 1 1.6%
Retirement 1 1.6%
Ring road 1 1.6%
Risk assessment 1 1.6%
Risk management 1 1.6%
River Line (NJ Transit) 1 1.6%
Road pricing 1 1.6%
Road surface 1 1.6%
Rumble strip 1 1.6%
Réseau express métropolitain 1 1.6%
SAE J1772 1 1.6%
San Francisco Bay Area 1 1.6%
San Ysidro, San Diego 1 1.6%
Sanitary sewer 1 1.6%
School voucher 1 1.6%
Sea 1 1.6%
Sea level rise 1 1.6%
Section 8 (housing) 1 1.6%
Securitization 1 1.6%
Shared space 1 1.6%
Shared transport 1 1.6%
Sharing economy 1 1.6%
Shepparton 1 1.6%
Shinkansen 1 1.6%
Shotton railway station 1 1.6%
Skyactiv 1 1.6%
Small business 1 1.6%
Smart charging 1 1.6%
Smart growth 1 1.6%
Smart meter 1 1.6%
Smart motorway 1 1.6%
South East Queensland 1 1.6%
South Wales 1 1.6%
South Wales Main Line 1 1.6%
South Wales Metro 1 1.6%
Sport utility vehicle 1 1.6%
Start-stop system 1 1.6%
Stock 1 1.6%
Strategic Petroleum Reserve (United States) 1 1.6%
Strategic management 1 1.6%
Sub-Saharan Africa 1 1.6%
Super grid 1 1.6%
Supercharger 1 1.6%
Supply (economics) 1 1.6%
Supply and demand 1 1.6%
Supply-chain management 1 1.6%
Surface runoff 1 1.6%
Sustainable city 1 1.6%
Swansea 1 1.6%
Swansea railway station 1 1.6%
Systemic risk 1 1.6%
Systems engineering 1 1.6%
Tax incidence 1 1.6%
Telecommunication 1 1.6%
Tesla Supercharger 1 1.6%
The Ride (MBTA) 1 1.6%
Throttle 1 1.6%
Tidal power 1 1.6%
Tijuana 1 1.6%
Tijuana River 1 1.6%
Toyota Mirai 1 1.6%
Toyota Prius 1 1.6%
Trade 1 1.6%
Train station 1 1.6%
Tram 1 1.6%
Trans-Asian Railway 1 1.6%
Trans-European Transport Networks 1 1.6%
Transmission (mechanics) 1 1.6%
Tropospheric ozone 1 1.6%
Trucking industry in the United States 1 1.6%
Tunnel 1 1.6%
Tunnel boring machine 1 1.6%
Turbocharger 1 1.6%
U.S. Route 130 1 1.6%
U.S. Route 202 in New Jersey 1 1.6%
U.S. Route 206 1 1.6%
U.S. Route 301 in Maryland 1 1.6%
U.S. Route 40 in Maryland 1 1.6%
U.S. Route 50 in Maryland 1 1.6%
U.S. Route 9 in New Jersey 1 1.6%
Underwriting 1 1.6%
United Nations Framework Convention on Climate Change 1 1.6%
United States Code 1 1.6%
United States vehicle emission standards 1 1.6%
Urban area 1 1.6%
Urban design 1 1.6%
Valletta 1 1.6%
Value chain 1 1.6%
Value proposition 1 1.6%
Variable compression ratio 1 1.6%
Variable displacement 1 1.6%
Vehicle electrification 1 1.6%
Vehicle emissions control 1 1.6%
Vehicle-to-everything 1 1.6%
Vehicle-to-grid 1 1.6%
Vehicular ad-hoc network 1 1.6%
Volatile organic compound 1 1.6%
WannaCry ransomware attack 1 1.6%
Warehouse 1 1.6%
Waste 1 1.6%
Water footprint 1 1.6%
Water heating 1 1.6%
Water resources 1 1.6%
West Coast Main Line 1 1.6%
West Gate Tunnel 1 1.6%
West Side, Chicago 1 1.6%
Whistleblower 1 1.6%
Wrexham 1 1.6%
Zero-energy building 1 1.6%

2019

abs rel
Transport 67 84.8%
Human activities 61 77.2%
Economy 51 64.6%
Infrastructure 45 57.0%
Public transport 41 51.9%
Sustainability 39 49.4%
Technology 39 49.4%
Road 34 43.0%
Traffic 33 41.8%
Car 30 38.0%
Electric vehicle 27 34.2%
Economic growth 26 32.9%
Greenhouse gas 25 31.6%
Air pollution 24 30.4%
Innovation 24 30.4%
Electrical grid 23 29.1%
Land transport 23 29.1%
Renewable energy 23 29.1%
Self-driving car 23 29.1%
Climate change mitigation 22 27.8%
Low-carbon economy 22 27.8%
Rail transport 22 27.8%
Tax 22 27.8%
Vehicle 22 27.8%
Traffic congestion 21 26.6%
Efficient energy use 20 25.3%
Parking 19 24.1%
Energy 18 22.8%
Highway 18 22.8%
Plug-in hybrid 18 22.8%
Market (economics) 17 21.5%
Charging station 16 20.3%
Economics 16 20.3%
Nature 15 19.0%
Risk 15 19.0%
Service industries 15 19.0%
Transportation engineering 15 19.0%
Electricity generation 14 17.7%
Employment 14 17.7%
Fuel economy in automobiles 14 17.7%
Natural gas 13 16.5%
Poverty 13 16.5%
Subsidy 13 16.5%
Climate change 12 15.2%
Construction 12 15.2%
Fuel 12 15.2%
Hybrid electric vehicle 12 15.2%
Pedestrian 12 15.2%
Road transport 12 15.2%
Street 12 15.2%
Biofuel 11 13.9%
Cycling 11 13.9%
Electric battery 11 13.9%
Energy development 11 13.9%
Logistics 11 13.9%
Research 11 13.9%
Sustainable transport 11 13.9%
Bus 10 12.7%
Climate resilience 10 12.7%
Computer security 10 12.7%
Electricity 10 12.7%
Finance 10 12.7%
Hybrid vehicle 10 12.7%
Photovoltaics 10 12.7%
Policy 10 12.7%
Road traffic safety 10 12.7%
Services (economics) 10 12.7%
Urban planning 10 12.7%
Wind power 10 12.7%
Accessibility 9 11.4%
Business 9 11.4%
Cycling infrastructure 9 11.4%
Economic development 9 11.4%
Electric car 9 11.4%
Electric power transmission 9 11.4%
Fossil fuel 9 11.4%
Fuel efficiency 9 11.4%
Global warming 9 11.4%
Governance 9 11.4%
Pollution 9 11.4%
Automation 8 10.1%
Battery electric vehicle 8 10.1%
Bicycle 8 10.1%
Cargo 8 10.1%
Coal 8 10.1%
Competition (companies) 8 10.1%
Computer network 8 10.1%
Controlled-access highway 8 10.1%
Distributed generation 8 10.1%
Electric power 8 10.1%
Investment 8 10.1%
Pricing 8 10.1%
Road pricing 8 10.1%
Smart grid 8 10.1%
Sustainable Development Goals 8 10.1%
Train 8 10.1%
Truck 8 10.1%
Zero-emissions vehicle 8 10.1%
Artificial intelligence 7 8.9%
Artificial objects 7 8.9%
Bicycle-sharing system 7 8.9%
Energy storage 7 8.9%
Engine 7 8.9%
Interchange (road) 7 8.9%
Paris Agreement 7 8.9%
Petroleum 7 8.9%
Public–private partnership 7 8.9%
Retail 7 8.9%
Road infrastructure 7 8.9%
Rush hour 7 8.9%
Solar power 7 8.9%
Traffic collision 7 8.9%
Transportation planning 7 8.9%
Vehicle-to-grid 7 8.9%
Walkability 7 8.9%
World energy consumption 7 8.9%
Affordable housing 6 7.6%
Bank 6 7.6%
Carpool 6 7.6%
Carsharing 6 7.6%
Fuel cell vehicle 6 7.6%
Gasoline 6 7.6%
Globalization 6 7.6%
Goal 6 7.6%
Government incentives for plug-in electric vehicles 6 7.6%
Mode of transport 6 7.6%
Pedestrian crossing 6 7.6%
Plug-in electric vehicle 6 7.6%
Port 6 7.6%
Power (physics) 6 7.6%
Rail freight transport 6 7.6%
Risk management 6 7.6%
Safety 6 7.6%
Solar energy 6 7.6%
Supply chain 6 7.6%
Sustainable development 6 7.6%
Transport infrastructure 6 7.6%
Truck driver 6 7.6%
Vehicles 6 7.6%
Agriculture 5 6.3%
Airport 5 6.3%
Ancillary services (electric power) 5 6.3%
Battery charger 5 6.3%
Carbon capture and storage 5 6.3%
Commuting 5 6.3%
Complete streets 5 6.3%
Congestion pricing 5 6.3%
Cost–benefit analysis 5 6.3%
Developing country 5 6.3%
Diesel engine 5 6.3%
Electrical engineering 5 6.3%
Emission standard 5 6.3%
Energy demand management 5 6.3%
Environmental policy 5 6.3%
Evaluation 5 6.3%
Externality 5 6.3%
Forecasting 5 6.3%
Gross domestic product 5 6.3%
Health 5 6.3%
High-occupancy vehicle lane 5 6.3%
Incentive 5 6.3%
Internet of things 5 6.3%
Interoperability 5 6.3%
Intersection (road) 5 6.3%
Labour economics 5 6.3%
Liquefied natural gas 5 6.3%
Metropolitan planning organization 5 6.3%
Outsourcing 5 6.3%
Park 5 6.3%
Particulates 5 6.3%
Price of oil 5 6.3%
Productivity 5 6.3%
Sustainable technologies 5 6.3%
Traffic light 5 6.3%
Trail 5 6.3%
Urban sprawl 5 6.3%
Water 5 6.3%
Zoning 5 6.3%
Biodiesel 4 5.1%
Carbon dioxide 4 5.1%
Climate change adaptation 4 5.1%
Cobalt 4 5.1%
Competition 4 5.1%
Curb 4 5.1%
Curb extension 4 5.1%
Demand 4 5.1%
Demand response 4 5.1%
Energy industry 4 5.1%
Grid energy storage 4 5.1%
Hazard 4 5.1%
Intelligent transportation system 4 5.1%
Intermodal freight transport 4 5.1%
Investor 4 5.1%
Lane 4 5.1%
Leadership 4 5.1%
Light rail 4 5.1%
Low-carbon fuel standard 4 5.1%
Manufacturing 4 5.1%
Mobility as a service 4 5.1%
Monopoly 4 5.1%
Natural environment 4 5.1%
Photovoltaic system 4 5.1%
Price 4 5.1%
Psychological resilience 4 5.1%
Regulatory compliance 4 5.1%
Reliability engineering 4 5.1%
Shared mobility 4 5.1%
Smart meter 4 5.1%
Speed limit 4 5.1%
Sustainable energy 4 5.1%
Toll road 4 5.1%
Trade 4 5.1%
Transit-oriented development 4 5.1%
Trucking industry in the United States 4 5.1%
Unmanned aerial vehicle 4 5.1%
Vehicle-to-everything 4 5.1%
Active mobility 3 3.8%
Airline 3 3.8%
Alternating current 3 3.8%
Analytics 3 3.8%
Architecture 3 3.8%
Asia 3 3.8%
Automotive industry 3 3.8%
Blockchain 3 3.8%
Bond (finance) 3 3.8%
Bus rapid transit 3 3.8%
Civil engineering 3 3.8%
Clairemont, San Diego 3 3.8%
Comprehensive planning 3 3.8%
Container ship 3 3.8%
Corporate average fuel economy 3 3.8%
Delivery (commerce) 3 3.8%
E-commerce 3 3.8%
Economic sectors 3 3.8%
Economics of climate change mitigation 3 3.8%
Education 3 3.8%
Electric power distribution 3 3.8%
Electric vehicle battery 3 3.8%
Electromagnetism 3 3.8%
Emissions trading 3 3.8%
Energiewende in Germany 3 3.8%
Energy conservation 3 3.8%
Energy transition 3 3.8%
Eric Garcetti 3 3.8%
Exhaust gas 3 3.8%
Flood 3 3.8%
Food security 3 3.8%
Fossil fuel power station 3 3.8%
Government budget balance 3 3.8%
Greenhouse gas emissions 3 3.8%
High-occupancy toll lane 3 3.8%
Highway Trust Fund 3 3.8%
Hydroelectricity 3 3.8%
Hydrogen vehicle 3 3.8%
Industrial policy 3 3.8%
Inflation 3 3.8%
Information 3 3.8%
Insurance 3 3.8%
Intermodal passenger transport 3 3.8%
Internal combustion engine 3 3.8%
Interstate 8 3 3.8%
Kilowatt hour 3 3.8%
Kumeyaay 3 3.8%
Land-use planning 3 3.8%
Lithium-ion battery 3 3.8%
Machine learning 3 3.8%
Macroeconomics 3 3.8%
Managed lane 3 3.8%
Maritime transport 3 3.8%
Mini-grids 3 3.8%
Mining 3 3.8%
Mission Valley, San Diego 3 3.8%
Natural disaster 3 3.8%
Natural resource 3 3.8%
Network effect 3 3.8%
Nuclear power 3 3.8%
Performance indicator 3 3.8%
Privacy 3 3.8%
Public health 3 3.8%
Quality of life 3 3.8%
Real estate appraisal 3 3.8%
Road surface 3 3.8%
Satellite navigation 3 3.8%
Ship 3 3.8%
Simulation 3 3.8%
Sustainable city 3 3.8%
Tariff 3 3.8%
Traffic flow 3 3.8%
Transmission (mechanics) 3 3.8%
Transportation demand management 3 3.8%
United Nations Framework Convention on Climate Change 3 3.8%
Vehicle emission standard 3 3.8%
Vehicular automation 3 3.8%
Watt 3 3.8%
Africa 2 2.5%
Ageing 2 2.5%
Assisted living 2 2.5%
Automotive industry in the United States 2 2.5%
Behavior 2 2.5%
Best practice 2 2.5%
Bicycle boulevard 2 2.5%
Big data 2 2.5%
Black start 2 2.5%
Brexit 2 2.5%
Bridge 2 2.5%
Broward Boulevard 2 2.5%
Built environment 2 2.5%
Bulk carrier 2 2.5%
Business model 2 2.5%
California Environmental Quality Act 2 2.5%
California State Route 163 2 2.5%
Capacity building 2 2.5%
Carbon footprint 2 2.5%
Carbon neutrality 2 2.5%
Carbon price 2 2.5%
Chevrolet Bolt 2 2.5%
Chevrolet Volt 2 2.5%
Clean Air Act (United States) 2 2.5%
Clean Water Act 2 2.5%
Clean Water State Revolving Fund 2 2.5%
Climate Finance 2 2.5%
Cloud computing 2 2.5%
Commodity 2 2.5%
Commodity market 2 2.5%
Compressed natural gas 2 2.5%
Containerization 2 2.5%
Cost of electricity by source 2 2.5%
Credit 2 2.5%
Data analysis 2 2.5%
Debt 2 2.5%
Decentralization 2 2.5%
Decision-making 2 2.5%
Digital transformation 2 2.5%
Digitization 2 2.5%
Disaster risk reduction 2 2.5%
Disruptive innovation 2 2.5%
Drinking water 2 2.5%
Earmark (politics) 2 2.5%
Economic inequality 2 2.5%
Effects of global warming 2 2.5%
Electric bus 2 2.5%
Electric motor 2 2.5%
Electrical substation 2 2.5%
Electricity pricing 2 2.5%
Electronic toll collection 2 2.5%
Emergency management 2 2.5%
Emission intensity 2 2.5%
Energy poverty 2 2.5%
Energy production 2 2.5%
Energy security 2 2.5%
Environmental justice 2 2.5%
Environmental, social and corporate governance 2 2.5%
Estlink 2 2.5%
European Union Emission Trading Scheme 2 2.5%
Fee 2 2.5%
Financial technology 2 2.5%
Florida State Road 528 2 2.5%
Florida State Road 826 2 2.5%
Florida State Road 836 2 2.5%
Florida's Turnpike 2 2.5%
Food desert 2 2.5%
Fuel oil 2 2.5%
Fuel tax 2 2.5%
Gentrification 2 2.5%
Golden Glades Interchange 2 2.5%
Government 2 2.5%
Health care 2 2.5%
Heating, ventilation, and air conditioning 2 2.5%
High-speed rail 2 2.5%
High-voltage direct current 2 2.5%
Home insurance 2 2.5%
Homelessness 2 2.5%
Homestead Extension of Florida's Turnpike 2 2.5%
Human impact on the environment 2 2.5%
Hydrogen 2 2.5%
Hydrogen production 2 2.5%
Impact evaluation 2 2.5%
Infill 2 2.5%
Information and communications technology 2 2.5%
Intercity bus service 2 2.5%
Internal rate of return 2 2.5%
International labour law 2 2.5%
Interstate 196 2 2.5%
Interstate 205 (Oregon–Washington) 2 2.5%
Interstate 475 (Michigan) 2 2.5%
Interstate 496 2 2.5%
Interstate 5 in Oregon 2 2.5%
Interstate 5 in Washington 2 2.5%
Interstate 66 2 2.5%
Interstate 675 (Michigan) 2 2.5%
Interstate 69 in Michigan 2 2.5%
Interstate 710 and State Route 710 (California) 2 2.5%
Interstate 75 in Michigan 2 2.5%
Interstate 94 in Michigan 2 2.5%
Interstate 96 2 2.5%
Land management 2 2.5%
Last mile 2 2.5%
Legal person 2 2.5%
Level of service 2 2.5%
Life-cycle assessment 2 2.5%
Liquefied petroleum gas 2 2.5%
Loan 2 2.5%
M-13 (Michigan highway) 2 2.5%
M-21 (Michigan highway) 2 2.5%
M-44 (Michigan highway) 2 2.5%
M-54 (Michigan highway) 2 2.5%
M-59 (Michigan highway) 2 2.5%
M-6 (Michigan highway) 2 2.5%
Marine propulsion 2 2.5%
Market failure 2 2.5%
Measure R 2 2.5%
Mentorship 2 2.5%
Mergers and acquisitions 2 2.5%
Miami metropolitan area 2 2.5%
Michigan State Trunkline Highway System 2 2.5%
Mixed-use development 2 2.5%
Motorcycle 2 2.5%
Motorized scooter 2 2.5%
Nancy Pelosi 2 2.5%
National Environmental Policy Act 2 2.5%
Net metering 2 2.5%
Non-renewable resource 2 2.5%
Northeast Corridor 2 2.5%
Occupational safety and health 2 2.5%
Passenger facility charge 2 2.5%
Peak demand 2 2.5%
Peaking power plant 2 2.5%
Peer-to-peer ridesharing 2 2.5%
Physical quantities 2 2.5%
Politics of global warming 2 2.5%
Population 2 2.5%
Power inverter 2 2.5%
Power outage 2 2.5%
Power station 2 2.5%
Power-line communication 2 2.5%
Powertrain 2 2.5%
Public good 2 2.5%
Public policy 2 2.5%
Pumped-storage hydroelectricity 2 2.5%
Radio spectrum 2 2.5%
Rapid transit 2 2.5%
Rebound effect (conservation) 2 2.5%
Recycling 2 2.5%
Regional integration 2 2.5%
Reinsurance 2 2.5%
Research and development 2 2.5%
Retirement 2 2.5%
Risk assessment 2 2.5%
Rooftop photovoltaic power station 2 2.5%
SCADA 2 2.5%
SFpark 2 2.5%
Setback (architecture) 2 2.5%
Shared transport 2 2.5%
Sidewalk 2 2.5%
Social inequality 2 2.5%
Standardization 2 2.5%
Startup company 2 2.5%
Sunset provision 2 2.5%
Systems engineering 2 2.5%
Taxicab 2 2.5%
Technology roadmap 2 2.5%
Telecommunication 2 2.5%
Tesla Powerwall 2 2.5%
Time series 2 2.5%
Transformer 2 2.5%
Transportation network company 2 2.5%
Type approval 2 2.5%
U.S. Route 127 in Michigan 2 2.5%
U.S. Route 16 in Michigan 2 2.5%
U.S. Route 23 in Michigan 2 2.5%
U.S. Route 24 in Michigan 2 2.5%
U.S. Route 31 in Michigan 2 2.5%
U.S. state 2 2.5%
Unemployment 2 2.5%
Uninterruptible power supply 2 2.5%
Urban forestry 2 2.5%
Value chain 2 2.5%
Water supply network 2 2.5%
3D printing 1 1.3%
Administration of federal assistance in the United States 1 1.3%
Adolescence 1 1.3%
Advanced Technology Vehicles Manufacturing Loan Program 1 1.3%
Ageism 1 1.3%
Agile software development 1 1.3%
Aid 1 1.3%
Air cargo 1 1.3%
Alley 1 1.3%
Alternative fuel 1 1.3%
Alternative fuel vehicle 1 1.3%
Aluminium 1 1.3%
Apartment 1 1.3%
Appalachia 1 1.3%
Artificial general intelligence 1 1.3%
Artificial neural network 1 1.3%
Asset management 1 1.3%
Audience measurement 1 1.3%
Audit 1 1.3%
Audit committee 1 1.3%
Auke Bay, Juneau 1 1.3%
Automated guided vehicle 1 1.3%
Automobile dependency 1 1.3%
Automotive safety 1 1.3%
Autonomy 1 1.3%
Baltimore–Washington Parkway 1 1.3%
Battery pack 1 1.3%
Battery recycling 1 1.3%
Belt and Road Initiative 1 1.3%
BeltLine 1 1.3%
Bias 1 1.3%
Bill (law) 1 1.3%
Biomass 1 1.3%
Bioswale 1 1.3%
Blue Line (San Diego Trolley) 1 1.3%
Border 1 1.3%
Brake 1 1.3%
Budget 1 1.3%
Building 1 1.3%
Bus lane 1 1.3%
Business process 1 1.3%
CHAdeMO 1 1.3%
Cable barrier 1 1.3%
California Smog Check Program 1 1.3%
Caltrain 1 1.3%
Capacity factor 1 1.3%
Capital requirement 1 1.3%
Carbon offset 1 1.3%
Carbon tax 1 1.3%
Care work 1 1.3%
CareMore 1 1.3%
Caregiver 1 1.3%
Carl Moyer Memorial Air Quality Standards Attainment Program 1 1.3%
Catastrophe bond 1 1.3%
Central Asia 1 1.3%
Central Park 1 1.3%
Chauffeur 1 1.3%
Chemical tanker 1 1.3%
Chief risk officer 1 1.3%
China–Pakistan Economic Corridor 1 1.3%
Choice modelling 1 1.3%
Circular economy 1 1.3%
City 1 1.3%
City block 1 1.3%
Clean technology 1 1.3%
Climate 1 1.3%
Cogeneration 1 1.3%
Cognitive science 1 1.3%
Cohousing 1 1.3%
Collision avoidance system 1 1.3%
Combined Charging System 1 1.3%
Combustion 1 1.3%
Commercial mortgage 1 1.3%
Common ethanol fuel mixtures 1 1.3%
Community 1 1.3%
Competition (economics) 1 1.3%
Computer 1 1.3%
Concrete 1 1.3%
Contra Costa County, California 1 1.3%
Contract for difference 1 1.3%
Corporate social responsibility 1 1.3%
Crane (machine) 1 1.3%
Creative Commons license 1 1.3%
Credit rating 1 1.3%
Credit rating agency 1 1.3%
Credit risk 1 1.3%
Culture 1 1.3%
Cyber insurance 1 1.3%
Cyberattack 1 1.3%
Cyberwarfare 1 1.3%
DC-to-DC converter 1 1.3%
Dallas Love Field 1 1.3%
Dallas/Fort Worth International Airport 1 1.3%
Dallas–Fort Worth metroplex 1 1.3%
Dangerous goods 1 1.3%
Data 1 1.3%
Deep learning 1 1.3%
Deforestation 1 1.3%
Delivery drone 1 1.3%
Delphi method 1 1.3%
Demand management 1 1.3%
Demand responsive transport 1 1.3%
Design 1 1.3%
Diesel fuel 1 1.3%
Diesel locomotive 1 1.3%
Direct current 1 1.3%
Disability 1 1.3%
Disease 1 1.3%
Distribution of wealth 1 1.3%
Diversification (finance) 1 1.3%
Driving 1 1.3%
E85 1 1.3%
Earned income tax credit 1 1.3%
Earthquake insurance 1 1.3%
Easement 1 1.3%
East Asia 1 1.3%
Ecology 1 1.3%
Economic surplus 1 1.3%
Economies of agglomeration 1 1.3%
Economy of China 1 1.3%
Economy of the United States 1 1.3%
Elderly care 1 1.3%
Electric generator 1 1.3%
Electric multiple unit 1 1.3%
Electrification 1 1.3%
Electrification of Caltrain 1 1.3%
Emerging market 1 1.3%
Emission Control Area 1 1.3%
Energy economics 1 1.3%
Energy efficiency gap 1 1.3%
Energy management 1 1.3%
Energy market 1 1.3%
Energy policy of the United States 1 1.3%
Energy subsidies 1 1.3%
Energy-efficient driving 1 1.3%
Engineering 1 1.3%
Enterprise risk management 1 1.3%
Entrepreneurship 1 1.3%
Environmental design 1 1.3%
Environmental impact assessment 1 1.3%
Euro 1 1.3%
Europe 1 1.3%
European emission standards 1 1.3%
Exchange rate 1 1.3%
Exhaust gas recirculation 1 1.3%
Expert 1 1.3%
Exponential growth 1 1.3%
Extreme weather 1 1.3%
Feed-in tariffs in Germany 1 1.3%
Ferry 1 1.3%
Financial risk 1 1.3%
Financial services 1 1.3%
Financial statement 1 1.3%
Flexible-fuel vehicle 1 1.3%
Floating wind turbine 1 1.3%
Flood insurance 1 1.3%
Floor area 1 1.3%
Food 1 1.3%
Ford C-Max 1 1.3%
Form-based code 1 1.3%
Four-stroke engine 1 1.3%
Free trade 1 1.3%
Freight transport 1 1.3%
Fuel cell 1 1.3%
Full employment 1 1.3%
Fund accounting 1 1.3%
G20 1 1.3%
Galileo (satellite navigation) 1 1.3%
Gantry crane 1 1.3%
Gas carrier 1 1.3%
Gasoline and diesel usage and pricing 1 1.3%
General Data Protection Regulation 1 1.3%
Geographic information system 1 1.3%
Geographic mobility 1 1.3%
George Parks Highway 1 1.3%
Geriatrics 1 1.3%
German Renewable Energy Sources Act 1 1.3%
Glenn Highway 1 1.3%
Golden Gate Bridge 1 1.3%
Government debt 1 1.3%
Government spending 1 1.3%
Great Recession 1 1.3%
Green vehicle 1 1.3%
Greenhouse effect 1 1.3%
Guard rail 1 1.3%
Haines, Alaska 1 1.3%
Health insurance 1 1.3%
Health professional 1 1.3%
Health system 1 1.3%
Home care 1 1.3%
Hotel 1 1.3%
Hours of service 1 1.3%
Housing discrimination in the United States 1 1.3%
Housing segregation in the United States 1 1.3%
Humanitarian aid 1 1.3%
Hydrogen economy 1 1.3%
Hydrogen fuel 1 1.3%
Hyperloop 1 1.3%
Immigration 1 1.3%
Impact attenuator 1 1.3%
Inclusionary zoning 1 1.3%
Income distribution 1 1.3%
Independent power producers in British Columbia 1 1.3%
Indiana Rail Road 1 1.3%
Induced demand 1 1.3%
Industrial engineering 1 1.3%
Industrial internet of things 1 1.3%
Industries 1 1.3%
Industry 1 1.3%
Information asymmetry 1 1.3%
Information extraction 1 1.3%
Information privacy 1 1.3%
Innovation district 1 1.3%
Institution 1 1.3%
Institutional investor 1 1.3%
Instrumental variables estimation 1 1.3%
Integrated reporting 1 1.3%
Intellectual property 1 1.3%
Intelligence 1 1.3%
Intended Nationally Determined Contributions 1 1.3%
Interest 1 1.3%
Interest rate 1 1.3%
Intermodal container 1 1.3%
Internal control 1 1.3%
International trade 1 1.3%
Internet access 1 1.3%
Interstate 15 in California 1 1.3%
Interstate 270 (Maryland) 1 1.3%
Interstate 380 (Pennsylvania) 1 1.3%
Interstate 495 (Capital Beltway) 1 1.3%
Interstate 69 in Indiana 1 1.3%
Interstate 695 (Maryland) 1 1.3%
Interstate 70 in Maryland 1 1.3%
Interstate 80 1 1.3%
Interstate 80 in California 1 1.3%
Interstate 80 in Utah 1 1.3%
Interstate 805 1 1.3%
Interstate 81 in Maryland 1 1.3%
Interstate 83 1 1.3%
Interstate 880 (California) 1 1.3%
Interstate 895 1 1.3%
Interstate 95 in Maryland 1 1.3%
Interstate 97 1 1.3%
Inventory 1 1.3%
Investment management 1 1.3%
Joint venture 1 1.3%
LNG carrier 1 1.3%
Land use 1 1.3%
Landscape 1 1.3%
Last mile (transportation) 1 1.3%
Leadership in Energy and Environmental Design 1 1.3%
Levelized cost of energy 1 1.3%
Lexical analysis 1 1.3%
Liberty 1 1.3%
License 1 1.3%
Life expectancy 1 1.3%
Life insurance 1 1.3%
Lighting 1 1.3%
Lithium 1 1.3%
Load management 1 1.3%
Locomotive 1 1.3%
London Gateway 1 1.3%
Long-term care 1 1.3%
MARPOL 73/78 1 1.3%
Macroprudential regulation 1 1.3%
Maintenance (technical) 1 1.3%
Management 1 1.3%
Market access 1 1.3%
Market economy 1 1.3%
Market power 1 1.3%
Maryland Route 140 1 1.3%
Maryland Route 147 1 1.3%
Maryland Route 180 1 1.3%
Maryland Route 187 1 1.3%
Maryland Route 212 1 1.3%
Mathematical optimization 1 1.3%
Measurement 1 1.3%
Medicare (United States) 1 1.3%
Megacity 1 1.3%
Melbourne 1 1.3%
Member state of the European Union 1 1.3%
Mental health 1 1.3%
Microeconomics 1 1.3%
Mobile app 1 1.3%
Mode choice 1 1.3%
Monash Freeway 1 1.3%
Monetary policy 1 1.3%
Moore's law 1 1.3%
Motel 1 1.3%
Motivation 1 1.3%
Motor vehicles 1 1.3%
Multiple unit 1 1.3%
NOx 1 1.3%
NYC Ferry 1 1.3%
Named-entity recognition 1 1.3%
Napa County, California 1 1.3%
National Bridge Inventory 1 1.3%
National Renewable Energy Action Plan 1 1.3%
National debt of the United States 1 1.3%
Nationally Determined Contributions 1 1.3%
Natural hazard 1 1.3%
Natural language processing 1 1.3%
Near West Side, Chicago 1 1.3%
Net present value 1 1.3%
Network congestion 1 1.3%
Neural network 1 1.3%
New European Driving Cycle 1 1.3%
New Urbanism 1 1.3%
New product development 1 1.3%
Nissan Leaf 1 1.3%
Noise pollution 1 1.3%
North America 1 1.3%
Northgate, Seattle 1 1.3%
Nuclear reactor 1 1.3%
Nursing 1 1.3%
Nursing home care 1 1.3%
Offshore wind power 1 1.3%
Offshoring 1 1.3%
Oil tanker 1 1.3%
Old age 1 1.3%
Oligopoly 1 1.3%
Online shopping 1 1.3%
Operating model 1 1.3%
Option (finance) 1 1.3%
Orange Line (Los Angeles Metro) 1 1.3%
Ordinary least squares 1 1.3%
Organization 1 1.3%
Overhead line 1 1.3%
PAYGO 1 1.3%
Package delivery 1 1.3%
Packstation 1 1.3%
Paratransit 1 1.3%
Parking lot 1 1.3%
Parking meter 1 1.3%
Parking space 1 1.3%
Patent 1 1.3%
Payment system 1 1.3%
Peak oil 1 1.3%
Pension 1 1.3%
Petroleum industry 1 1.3%
Physical activity 1 1.3%
Pipeline transport 1 1.3%
PlaNYC 1 1.3%
Placemaking 1 1.3%
Planning 1 1.3%
Politics 1 1.3%
Population ageing 1 1.3%
Port of Long Beach 1 1.3%
Poverty reduction 1 1.3%
Power purchase agreement 1 1.3%
Preventive healthcare 1 1.3%
Printer (computing) 1 1.3%
Probability of default 1 1.3%
Profit (economics) 1 1.3%
Projects of Common Interest 1 1.3%
Propeller 1 1.3%
Propensity score matching 1 1.3%
Property insurance 1 1.3%
Prototype 1 1.3%
Public housing 1 1.3%
Public space 1 1.3%
Public utility 1 1.3%
Purchasing power parity 1 1.3%
Quasi-experiment 1 1.3%
Racial segregation 1 1.3%
Rail transportation in the United States 1 1.3%
Railroad car 1 1.3%
Railroad classes 1 1.3%
Railroad tie 1 1.3%
Railway electrification system 1 1.3%
Ramp meter 1 1.3%
Randolph Road 1 1.3%
Randomized controlled trial 1 1.3%
Range anxiety 1 1.3%
Range extender (vehicle) 1 1.3%
Recession 1 1.3%
Rectifier 1 1.3%
Regression analysis 1 1.3%
Regulation 1 1.3%
Remote work 1 1.3%
Renewable energy commercialization 1 1.3%
Renewable resource 1 1.3%
Renewable resources 1 1.3%
Representative Concentration Pathway 1 1.3%
Request for proposal 1 1.3%
Resource 1 1.3%
Ring road 1 1.3%
Robot 1 1.3%
Roundabout 1 1.3%
San Antonio River Walk 1 1.3%
San Francisco Bay Area 1 1.3%
San Francisco–Oakland Bay Bridge 1 1.3%
Sanctions against Iran 1 1.3%
Santa Clara County, California 1 1.3%
Scenario planning 1 1.3%
School bus 1 1.3%
Sea 1 1.3%
Seismic retrofit 1 1.3%
Self-insurance 1 1.3%
Sentiment analysis 1 1.3%
Service (economics) 1 1.3%
Seward Highway 1 1.3%
Share taxi 1 1.3%
Signage 1 1.3%
Small and medium-sized enterprises 1 1.3%
Smart charging 1 1.3%
Smart city 1 1.3%
Smart growth 1 1.3%
Smart lighting 1 1.3%
Social Security (United States) 1 1.3%
Social isolation 1 1.3%
Social market economy 1 1.3%
Social protection 1 1.3%
Society 1 1.3%
Solvency II Directive 2009 1 1.3%
Sonoma County, California 1 1.3%
Spatial planning 1 1.3%
Speed bump 1 1.3%
Sport utility vehicle 1 1.3%
Statistics 1 1.3%
Sterling Highway 1 1.3%
Stormwater 1 1.3%
Strategic Petroleum Reserve (United States) 1 1.3%
Strategic management 1 1.3%
Stress (biology) 1 1.3%
Stress test (financial) 1 1.3%
Suburb 1 1.3%
Supply chain management 1 1.3%
Supply-chain management 1 1.3%
Survey methodology 1 1.3%
Sustainable Development Goal 11 1 1.3%
Sustainable Development Goal 12 1 1.3%
Sustainable Development Goal 13 1 1.3%
Sustainable Development Goal 3 1 1.3%
Sustainable Development Goal 7 1 1.3%
Sustainable Development Goal 9 1 1.3%
Sustainable community 1 1.3%
Swap (finance) 1 1.3%
System 1 1.3%
Systemic risk 1 1.3%
Systemically important financial institution 1 1.3%
TRAX (light rail) 1 1.3%
Tax credit 1 1.3%
Theory of change 1 1.3%
Third rail 1 1.3%
Time 1 1.3%
Tom Carper 1 1.3%
Track (rail transport) 1 1.3%
Traction motor 1 1.3%
Trade union 1 1.3%
Traffic calming 1 1.3%
Tram 1 1.3%
Trans-Asian Railway 1 1.3%
Trans-European Transport Network 1 1.3%
Transparency (behavior) 1 1.3%
Transport economics 1 1.3%
Transportation Investment Generating Economic Recovery 1 1.3%
Tropical cyclone 1 1.3%
U.S. Route 101 in California 1 1.3%
U.S. Route 301 in Maryland 1 1.3%
U.S. Route 40 in Maryland 1 1.3%
U.S. Route 50 in Maryland 1 1.3%
Underinsurance (healthcare) 1 1.3%
Underwriting 1 1.3%
United States Code 1 1.3%
United States vehicle emission standards 1 1.3%
Urban area 1 1.3%
Urban design 1 1.3%
Urbanization 1 1.3%
Utility 1 1.3%
Value at risk 1 1.3%
Value proposition 1 1.3%
Variable renewable energy 1 1.3%
Vehicle for hire 1 1.3%
Vehicle miles traveled tax 1 1.3%
Vehicle registration plate 1 1.3%
Vehicle technology 1 1.3%
Vehicular ad hoc network 1 1.3%
Vehicular ad-hoc network 1 1.3%
Volunteering 1 1.3%
Walking 1 1.3%
Warehouse 1 1.3%
Warner Center, Los Angeles 1 1.3%
Waste 1 1.3%
Waste heat 1 1.3%
Waste management 1 1.3%
Water heating 1 1.3%
Water resources 1 1.3%
Water supply 1 1.3%
Wealth 1 1.3%
Welfare 1 1.3%
West Hills, Los Angeles 1 1.3%
West Texas Intermediate 1 1.3%
Whole-life cost 1 1.3%
Wildfire 1 1.3%
Wind turbine 1 1.3%
Workforce 1 1.3%
Workforce development 1 1.3%
Workforce housing 1 1.3%
World Energy Outlook 1 1.3%
World Inequality Report 1 1.3%
World population 1 1.3%
Worldwide harmonized light vehicles test procedure 1 1.3%
XBRL 1 1.3%
Yucca Mountain nuclear waste repository 1 1.3%
Zoning in the United States 1 1.3%

2020

abs rel
Human activities 69 81.2%
Economy 64 75.3%
Transport 50 58.8%
Sustainability 42 49.4%
Infrastructure 40 47.1%
Technology 40 47.1%
Low-carbon economy 33 38.8%
Public transport 33 38.8%
Greenhouse gas 30 35.3%
Efficient energy use 27 31.8%
Electric vehicle 27 31.8%
Innovation 27 31.8%
Renewable energy 27 31.8%
Economic growth 26 30.6%
Energy 26 30.6%
Self-driving car 26 30.6%
Car 25 29.4%
Electrical grid 22 25.9%
Market (economics) 22 25.9%
Traffic congestion 21 24.7%
Climate change mitigation 20 23.5%
Tax 19 22.4%
Vehicle 19 22.4%
Finance 18 21.2%
Road 18 21.2%
Service industries 18 21.2%
Air pollution 17 20.0%
Artificial intelligence 17 20.0%
Automation 17 20.0%
Employment 17 20.0%
Fuel 17 20.0%
Economics 16 18.8%
Global warming 16 18.8%
Nature 16 18.8%
Business 15 17.6%
Rail transport 15 17.6%
Traffic 15 17.6%
Land transport 14 16.5%
Sustainable energy 14 16.5%
Wind power 14 16.5%
Charging station 13 15.3%
Policy 13 15.3%
Electricity 12 14.1%
Photovoltaics 12 14.1%
Pollution 12 14.1%
Bank 11 12.9%
Risk 11 12.9%
Solar power 11 12.9%
Supply chain 11 12.9%
Bus 10 11.8%
Commuting 10 11.8%
Debt 10 11.8%
Electric power transmission 10 11.8%
Investment 10 11.8%
Logistics 10 11.8%
Natural gas 10 11.8%
Sustainable transport 10 11.8%
Battery electric vehicle 9 10.6%
Climate resilience 9 10.6%
Distributed generation 9 10.6%
Electric power 9 10.6%
Energy development 9 10.6%
Engine 9 10.6%
Fuel economy in automobiles 9 10.6%
Hybrid vehicle 9 10.6%
Plug-in hybrid 9 10.6%
Poverty 9 10.6%
Road traffic safety 9 10.6%
Solar energy 9 10.6%
Subsidy 9 10.6%
Vehicles 9 10.6%
World energy consumption 9 10.6%
COVID-19 pandemic 8 9.4%
Carbon price 8 9.4%
Coal 8 9.4%
Cycling 8 9.4%
Demand 8 9.4%
Electrical engineering 8 9.4%
Gross domestic product 8 9.4%
Hybrid electric vehicle 8 9.4%
Interest 8 9.4%
Internet of things 8 9.4%
Manufacturing 8 9.4%
Public–private partnership 8 9.4%
Smart grid 8 9.4%
Sustainable Development Goals 8 9.4%
Sustainable development 8 9.4%
Truck 8 9.4%
Carbon neutrality 7 8.2%
Climate change 7 8.2%
Computer security 7 8.2%
Electric battery 7 8.2%
Electricity generation 7 8.2%
Emissions trading 7 8.2%
Energiewende 7 8.2%
Energy industry 7 8.2%
Highway 7 8.2%
Investor 7 8.2%
Parking 7 8.2%
Research 7 8.2%
Urbanization 7 8.2%
Variable renewable energy 7 8.2%
Vehicular automation 7 8.2%
Behavior 6 7.1%
Carbon capture and storage 6 7.1%
Carbon tax 6 7.1%
Cargo 6 7.1%
Competition (companies) 6 7.1%
Construction 6 7.1%
Electric car 6 7.1%
Equity (finance) 6 7.1%
Fossil fuel 6 7.1%
Fuel cell vehicle 6 7.1%
Health 6 7.1%
Hydroelectricity 6 7.1%
Latin America 6 7.1%
Life-cycle assessment 6 7.1%
Liquefied natural gas 6 7.1%
Nuclear power 6 7.1%
Physical quantities 6 7.1%
Plug-in electric vehicle 6 7.1%
Power (physics) 6 7.1%
Pricing 6 7.1%
Productivity 6 7.1%
Recycling 6 7.1%
Ridesharing company 6 7.1%
Simulation 6 7.1%
Train 6 7.1%
Transportation engineering 6 7.1%
Zero-energy building 6 7.1%
Affordable housing 5 5.9%
Bicycle 5 5.9%
Bicycle-sharing system 5 5.9%
Biofuel 5 5.9%
Carbon dioxide 5 5.9%
Carsharing 5 5.9%
Corporate average fuel economy 5 5.9%
Cyberwarfare 5 5.9%
Demand response 5 5.9%
Education 5 5.9%
Fuel cell 5 5.9%
Governance 5 5.9%
Grid energy storage 5 5.9%
Hydrogen 5 5.9%
Incentive 5 5.9%
Insurance 5 5.9%
Labour economics 5 5.9%
Loan 5 5.9%
Low-carbon fuel standard 5 5.9%
Market liquidity 5 5.9%
Mobility as a service 5 5.9%
Pedestrian 5 5.9%
Price 5 5.9%
Recession 5 5.9%
Regional transmission organization (North America) 5 5.9%
Smart city 5 5.9%
Telecommuting 5 5.9%
Urban sprawl 5 5.9%
Zero-emissions vehicle 5 5.9%
Alternative fuel 4 4.7%
Capital market 4 4.7%
Carbon footprint 4 4.7%
Carbon pricing in Australia 4 4.7%
Circular economy 4 4.7%
Compressed natural gas 4 4.7%
Consumption (economics) 4 4.7%
Corporate social responsibility 4 4.7%
Cryptocurrency 4 4.7%
Diesel engine 4 4.7%
E-commerce 4 4.7%
Economics of climate change mitigation 4 4.7%
Electric bicycle 4 4.7%
Electricity pricing 4 4.7%
Electrification 4 4.7%
Emission intensity 4 4.7%
Energy storage 4 4.7%
Environmental, social and corporate governance 4 4.7%
European Union Emission Trading Scheme 4 4.7%
Exhaust gas 4 4.7%
Fuel efficiency 4 4.7%
Green vehicle 4 4.7%
Lithium 4 4.7%
Machine learning 4 4.7%
Mode of transport 4 4.7%
Motorized scooter 4 4.7%
Paris Agreement 4 4.7%
Power station 4 4.7%
Public utility 4 4.7%
Research and development 4 4.7%
Risk management 4 4.7%
Road transport 4 4.7%
Shared mobility 4 4.7%
Ship 4 4.7%
Speed limit 4 4.7%
Statistics 4 4.7%
Sustainable technologies 4 4.7%
Traffic simulation 4 4.7%
Transport infrastructure 4 4.7%
Unmanned aerial vehicle 4 4.7%
Accessibility 3 3.5%
Airline 3 3.5%
Alternative energy 3 3.5%
Apprenticeship 3 3.5%
Battery charger 3 3.5%
Blockchain 3 3.5%
Bond (finance) 3 3.5%
Bus rapid transit 3 3.5%
Carbon emission trading 3 3.5%
Clean technology 3 3.5%
Climate change policy of the United States 3 3.5%
Competition 3 3.5%
Computer network 3 3.5%
Correlation and dependence 3 3.5%
Cycling infrastructure 3 3.5%
Decentralization 3 3.5%
Economic development 3 3.5%
Economy of the United States 3 3.5%
Electric bus 3 3.5%
Energy conservation 3 3.5%
Errors and residuals 3 3.5%
Fossil fuel power station 3 3.5%
Gasoline 3 3.5%
Globalization 3 3.5%
Government budget balance 3 3.5%
Greenhouse gas emissions 3 3.5%
Hybrid vehicle drivetrain 3 3.5%
Hydrogen fuel 3 3.5%
Income 3 3.5%
Industry 3 3.5%
Inflation 3 3.5%
Intelligent transportation system 3 3.5%
Kilowatt-hour 3 3.5%
Manufactured goods 3 3.5%
Maritime transport 3 3.5%
Offshore wind power 3 3.5%
Performance indicator 3 3.5%
Petroleum 3 3.5%
Port 3 3.5%
Positive train control 3 3.5%
Power inverter 3 3.5%
Powertrain 3 3.5%
Profit (economics) 3 3.5%
Range extender 3 3.5%
Rapid transit 3 3.5%
Regression analysis 3 3.5%
Reliability engineering 3 3.5%
Road infrastructure 3 3.5%
Services (economics) 3 3.5%
Smart meter 3 3.5%
Society 3 3.5%
Street 3 3.5%
Tariff 3 3.5%
Tourism 3 3.5%
Traffic collision 3 3.5%
Traffic flow 3 3.5%
Trail 3 3.5%
Trans-European Transport Network 3 3.5%
Turbocharger 3 3.5%
Urban planning 3 3.5%
Utility 3 3.5%
Vehicle emission standard 3 3.5%
Vehicle technology 3 3.5%
Vehicle-to-grid 3 3.5%
Venture capital 3 3.5%
Water 3 3.5%
Accountability 2 2.4%
Agent-based model 2 2.4%
Airport 2 2.4%
Alternative fuel vehicle 2 2.4%
Analytics 2 2.4%
Audit 2 2.4%
Automobile dependency 2 2.4%
Automotive industry 2 2.4%
Best practice 2 2.4%
Bias 2 2.4%
Biodiesel 2 2.4%
Bioenergy 2 2.4%
Biogas 2 2.4%
Biomass 2 2.4%
Bipolar junction transistor 2 2.4%
Bond market 2 2.4%
Brake 2 2.4%
Business model 2 2.4%
Capacitor 2 2.4%
Child 2 2.4%
Climate bond 2 2.4%
Climate finance 2 2.4%
Cloud computing 2 2.4%
Coal-fired power station 2 2.4%
Cobalt 2 2.4%
Cogeneration 2 2.4%
Combined cycle power plant 2 2.4%
Community 2 2.4%
Competition (economics) 2 2.4%
Comprehensive planning 2 2.4%
Concentrated solar power 2 2.4%
Congestion pricing 2 2.4%
Connected car 2 2.4%
Controlled-access highway 2 2.4%
Cost 2 2.4%
Cost of capital 2 2.4%
Credit 2 2.4%
Credit card 2 2.4%
Cross-validation (statistics) 2 2.4%
Curb 2 2.4%
DC-to-DC converter 2 2.4%
Dallas/Fort Worth International Airport 2 2.4%
Data analysis 2 2.4%
Difference in differences 2 2.4%
Dividend 2 2.4%
Drivetrain 2 2.4%
Electric energy consumption 2 2.4%
Electric motor 2 2.4%
Electric truck 2 2.4%
Electric vehicle battery 2 2.4%
Emerging market 2 2.4%
Emission standard 2 2.4%
Energy policy of the European Union 2 2.4%
Energy production 2 2.4%
Energy-efficient driving 2 2.4%
Environmental technology 2 2.4%
Euro 2 2.4%
Externality 2 2.4%
Fee 2 2.4%
Field-effect transistor 2 2.4%
Financial capital 2 2.4%
Financial risk 2 2.4%
Financial technology 2 2.4%
Fixed effects model 2 2.4%
Fuel tax 2 2.4%
Full-size car 2 2.4%
Fundamental diagram of traffic flow 2 2.4%
Funding 2 2.4%
Government 2 2.4%
Government incentives for plug-in electric vehicles 2 2.4%
Graphics Core Next 2 2.4%
Great Recession 2 2.4%
Green infrastructure 2 2.4%
Heating, ventilation, and air conditioning 2 2.4%
High-speed rail 2 2.4%
High-voltage direct current 2 2.4%
Highway Trust Fund 2 2.4%
Homelessness 2 2.4%
Household income in the United States 2 2.4%
Hydrogen vehicle 2 2.4%
Hyliion Inc. 2 2.4%
Information 2 2.4%
Institution 2 2.4%
Insulated-gate bipolar transistor 2 2.4%
Intermodal passenger transport 2 2.4%
Internal combustion engine 2 2.4%
Internet 2 2.4%
Interoperability 2 2.4%
Interstate 66 2 2.4%
Islanding 2 2.4%
Leverage (finance) 2 2.4%
Light rail 2 2.4%
Lithium iron phosphate 2 2.4%
Lithium iron phosphate battery 2 2.4%
Lithium nickel cobalt aluminium oxides 2 2.4%
Lithium nickel manganese cobalt oxides 2 2.4%
Lithium-ion battery 2 2.4%
Low-carbon power 2 2.4%
MOSFET 2 2.4%
Market share 2 2.4%
Mathematical optimization 2 2.4%
Microsimulation 2 2.4%
Mode choice 2 2.4%
Monetary policy 2 2.4%
Money 2 2.4%
Monopoly 2 2.4%
Motorcycle 2 2.4%
Multi-agent system 2 2.4%
Net metering 2 2.4%
Nicholas Stern, Baron Stern of Brentford 2 2.4%
Noise pollution 2 2.4%
Nuclear reactor 2 2.4%
Offshoring 2 2.4%
Option (finance) 2 2.4%
Particulates 2 2.4%
Pension 2 2.4%
Phasor measurement unit 2 2.4%
Pipeline transport 2 2.4%
Politics 2 2.4%
Politics of global warming 2 2.4%
Power electronics 2 2.4%
Power semiconductor device 2 2.4%
Price elasticity of demand 2 2.4%
Price of oil 2 2.4%
Private equity 2 2.4%
Proof of work 2 2.4%
Public health 2 2.4%
Public sphere 2 2.4%
Rail freight transport 2 2.4%
Railway electrification system 2 2.4%
Real estate appraisal 2 2.4%
Real estate economics 2 2.4%
Rechargeable battery 2 2.4%
Regenerative brake 2 2.4%
Regulation 2 2.4%
Regulatory compliance 2 2.4%
Renewable fuels 2 2.4%
Retail 2 2.4%
Road pricing 2 2.4%
Rush hour 2 2.4%
Scenario planning 2 2.4%
Sea 2 2.4%
Second-generation biofuels 2 2.4%
Securitization 2 2.4%
Security 2 2.4%
Semi-trailer truck 2 2.4%
Semiconductor 2 2.4%
Shared transport 2 2.4%
Sidewalk 2 2.4%
Silicon carbide 2 2.4%
Smart (marque) 2 2.4%
Social exclusion 2 2.4%
Socially responsible investing 2 2.4%
Solar thermal energy 2 2.4%
Solid-state battery 2 2.4%
Sport utility vehicle 2 2.4%
Start-stop system 2 2.4%
Stormwater 2 2.4%
Supercapacitor 2 2.4%
Surveillance 2 2.4%
Synchronous motor 2 2.4%
System 2 2.4%
Taxicab 2 2.4%
Thermal energy storage 2 2.4%
Thyristor 2 2.4%
Toll road 2 2.4%
Total cost of ownership 2 2.4%
Track gauge 2 2.4%
Traction motor 2 2.4%
Trade union 2 2.4%
Transistor 2 2.4%
Transmission (mechanics) 2 2.4%
Transport network analysis 2 2.4%
Transportation planning 2 2.4%
Truck classification 2 2.4%
Unemployment 2 2.4%
United Nations Framework Convention on Climate Change 2 2.4%
UrbanSim 2 2.4%
Valuation (finance) 2 2.4%
Value chain 2 2.4%
Variable-message sign 2 2.4%
Vehicle weight 2 2.4%
Vehicular ad hoc network 2 2.4%
Workforce 2 2.4%
Workforce development 2 2.4%
World energy supply and consumption 2 2.4%
2019–20 coronavirus outbreak 1 1.2%
5G 1 1.2%
Access to finance 1 1.2%
Active mobility 1 1.2%
Administration of federal assistance in the United States 1 1.2%
Adoption 1 1.2%
Advanced driver-assistance systems 1 1.2%
Aerospace 1 1.2%
Agriculture 1 1.2%
Air conditioning 1 1.2%
Airworthiness 1 1.2%
Alamo, California 1 1.2%
Alley 1 1.2%
Americas 1 1.2%
Analysis 1 1.2%
Ancillary services (electric power) 1 1.2%
Appalachia 1 1.2%
Apportionment 1 1.2%
Art 1 1.2%
Asynchronous Transfer Mode 1 1.2%
Auckland 1 1.2%
Augmented reality 1 1.2%
Automotive electronics 1 1.2%
Automotive industry in the United States 1 1.2%
Autopilot 1 1.2%
Average treatment effect 1 1.2%
Belt and Road Initiative 1 1.2%
Benchmarking 1 1.2%
Bicycle boulevard 1 1.2%
Big data 1 1.2%
Bill (law) 1 1.2%
Biodiversity 1 1.2%
Bioswale 1 1.2%
Body mass index 1 1.2%
Bootstrapping (statistics) 1 1.2%
Branches of science 1 1.2%
Brenner Base Tunnel 1 1.2%
Bridge 1 1.2%
Budget 1 1.2%
Bus lane 1 1.2%
Business cycle 1 1.2%
Business economics 1 1.2%
CHAdeMO 1 1.2%
California Environmental Quality Act 1 1.2%
California High School Exit Exam 1 1.2%
Cannabis (drug) 1 1.2%
Capacity factor 1 1.2%
Capital (economics) 1 1.2%
Car dependency 1 1.2%
Caracas 1 1.2%
Carbon Offsetting and Reduction Scheme for International Aviation 1 1.2%
Carbon credit 1 1.2%
Carbon dioxide in Earth's atmosphere 1 1.2%
Carbon leakage 1 1.2%
Carbon offset 1 1.2%
Carbon sequestration 1 1.2%
Cardiovascular disease 1 1.2%
Carpool 1 1.2%
Case study 1 1.2%
Cash 1 1.2%
Causality 1 1.2%
Cement 1 1.2%
Central heating 1 1.2%
Changi 1 1.2%
Charter schools in the United States 1 1.2%
Check-in 1 1.2%
Chevrolet Volt 1 1.2%
Child care 1 1.2%
Child development 1 1.2%
City 1 1.2%
Civil engineering 1 1.2%
Clean Air Act (United States) 1 1.2%
Clean Development Mechanism 1 1.2%
Clean Power Plan 1 1.2%
Climate change adaptation 1 1.2%
Coase theorem 1 1.2%
Cognitive bias 1 1.2%
Cointegration 1 1.2%
Collision avoidance system 1 1.2%
Columbia Heights (Washington, D.C.) 1 1.2%
Common ethanol fuel mixtures 1 1.2%
Commuter rail 1 1.2%
Commuter town 1 1.2%
Competition law 1 1.2%
Complete streets 1 1.2%
Computable general equilibrium 1 1.2%
Computer 1 1.2%
Computer accessibility 1 1.2%
Conceptual framework 1 1.2%
Conceptual model 1 1.2%
Consensus (computer science) 1 1.2%
Constitution of Texas 1 1.2%
Contra Costa County, California 1 1.2%
Control theory 1 1.2%
Cool Japan 1 1.2%
Cooperative 1 1.2%
Coronavirus disease 2019 1 1.2%
Corporate governance 1 1.2%
Corruption 1 1.2%
Cost–benefit analysis 1 1.2%
County Route 520 (New Jersey) 1 1.2%
County Route 537 (New Jersey) 1 1.2%
County Route 561 (New Jersey) 1 1.2%
County Route 563 (New Jersey) 1 1.2%
Creative industries 1 1.2%
Credit rating agency 1 1.2%
Cross Island MRT line 1 1.2%
Crowdfunding 1 1.2%
Cruise control 1 1.2%
Cruise ship 1 1.2%
Curb cut 1 1.2%
Cyber-security regulation 1 1.2%
Cyberattack 1 1.2%
Data 1 1.2%
Daylighting (streams) 1 1.2%
Deforestation 1 1.2%
Delivery (commerce) 1 1.2%
Delivery drone 1 1.2%
Delphi method 1 1.2%
Dependent and independent variables 1 1.2%
Deposit insurance 1 1.2%
Depreciation 1 1.2%
Diesel fuel 1 1.2%
Digital identity 1 1.2%
Digital transformation 1 1.2%
Digital twin 1 1.2%
Digital wallet 1 1.2%
Direct air capture 1 1.2%
Director general 1 1.2%
Disability 1 1.2%
Disease 1 1.2%
Distribution management system 1 1.2%
District heating 1 1.2%
Dominance (economics) 1 1.2%
Dynamic pricing 1 1.2%
E85 1 1.2%
Earnings before interest, taxes, depreciation, and amortization 1 1.2%
East Bay 1 1.2%
Eastern Europe 1 1.2%
Ecological resilience 1 1.2%
Ecology 1 1.2%
Economic impact analysis 1 1.2%
Economic inequality 1 1.2%
Economies of scale 1 1.2%
Economy of China 1 1.2%
Education reform 1 1.2%
Effects of global warming 1 1.2%
Elasticity (economics) 1 1.2%
Electric power distribution 1 1.2%
Electrician 1 1.2%
Electromagnetism 1 1.2%
Electronic control unit 1 1.2%
Electronic stability control 1 1.2%
Electronic toll collection 1 1.2%
Embedded system 1 1.2%
Emergency management 1 1.2%
Emerging technologies 1 1.2%
Energy Community 1 1.2%
Energy demand management 1 1.2%
Energy efficiency in transport 1 1.2%
Energy market 1 1.2%
Energy policy of the United States 1 1.2%
Energy security 1 1.2%
Energy system 1 1.2%
Energy technology 1 1.2%
Energy transition 1 1.2%
Engine control unit 1 1.2%
Engineering 1 1.2%
Enhanced oil recovery 1 1.2%
Entrepreneurship 1 1.2%
Environmental impact of shipping 1 1.2%
Environmental policy 1 1.2%
Environmental protection 1 1.2%
Europe 1 1.2%
European Green Deal 1 1.2%
European Train Control System 1 1.2%
Evolution 1 1.2%
Exercise 1 1.2%
Expense 1 1.2%
F-test 1 1.2%
Factor analysis 1 1.2%
Feed-in tariff 1 1.2%
Fehmarn Belt Fixed Link 1 1.2%
Financial crisis of 2007–08 1 1.2%
Financial inclusion 1 1.2%
Financial services 1 1.2%
Financial transaction 1 1.2%
Fiscal policy 1 1.2%
Flexible-fuel vehicle 1 1.2%
Flextime 1 1.2%
Florida State Road 528 1 1.2%
Florida State Road 826 1 1.2%
Florida State Road 836 1 1.2%
Florida's Turnpike 1 1.2%
Fossil fuel phase-out 1 1.2%
Fuel poverty 1 1.2%
Fund accounting 1 1.2%
Future proof 1 1.2%
GSM-R 1 1.2%
Garden State Parkway 1 1.2%
Gas 1 1.2%
Gateway Program (Northeast Corridor) 1 1.2%
Geothermal heat pump 1 1.2%
German Renewable Energy Sources Act 1 1.2%
Goal 1 1.2%
Golden Glades Interchange 1 1.2%
Goods and Services Tax (Singapore) 1 1.2%
Government debt 1 1.2%
Government spending 1 1.2%
Green bank 1 1.2%
Green bond 1 1.2%
Gross income 1 1.2%
Hampton Roads 1 1.2%
Hardware-in-the-loop simulation 1 1.2%
Health care 1 1.2%
Health system 1 1.2%
Heat pump 1 1.2%
High-occupancy toll lane 1 1.2%
High-occupancy vehicle lane 1 1.2%
Historic preservation 1 1.2%
Homestead Extension of Florida's Turnpike 1 1.2%
Homosexuality 1 1.2%
Hospital 1 1.2%
Household 1 1.2%
Human capital 1 1.2%
Human impact on the environment 1 1.2%
Human migration 1 1.2%
Human trafficking 1 1.2%
Hydrocarbon Oil Duty 1 1.2%
Hydrogen economy 1 1.2%
Hydrogen production 1 1.2%
Hyperloop 1 1.2%
Hypothesis 1 1.2%
ISO 26262 1 1.2%
Identity document 1 1.2%
Impact investing 1 1.2%
Inclusion (education) 1 1.2%
Independent Power Producer 1 1.2%
Independent power producers in British Columbia 1 1.2%
Industrial policy 1 1.2%
Infection 1 1.2%
Information extraction 1 1.2%
Information retrieval 1 1.2%
Initial coin offering 1 1.2%
Inland Empire 1 1.2%
Input–output model 1 1.2%
Instrumental variables estimation 1 1.2%
Integrated reporting 1 1.2%
Intelligence 1 1.2%
Interest rate 1 1.2%
International trade 1 1.2%
Internet access 1 1.2%
Internet celebrity 1 1.2%
Intersection (road) 1 1.2%
Interstate 205 (Oregon–Washington) 1 1.2%
Interstate 5 in Washington 1 1.2%
Interstate 64 in Virginia 1 1.2%
Interstate 81 1 1.2%
Interstate 95 in Virginia 1 1.2%
Invoice 1 1.2%
Iron Horse Regional Trail 1 1.2%
Jet pack 1 1.2%
Joint venture 1 1.2%
Jurong 1 1.2%
Kilowatt hour 1 1.2%
Knowledge 1 1.2%
Kyoto Protocol 1 1.2%
LGBT 1 1.2%
LGBT community 1 1.2%
Lane 1 1.2%
Language 1 1.2%
Lasso (statistics) 1 1.2%
Lead 1 1.2%
Least squares 1 1.2%
Level of service (transportation) 1 1.2%
Lexical analysis 1 1.2%
Library 1 1.2%
Life insurance 1 1.2%
Lima 1 1.2%
Liquefied petroleum gas 1 1.2%
Liquidated damages 1 1.2%
Liquidity risk 1 1.2%
Literature 1 1.2%
Load management 1 1.2%
Local flexibility markets 1 1.2%
MAX Light Rail 1 1.2%
Macroeconomics 1 1.2%
Maglev 1 1.2%
Maintenance (technical) 1 1.2%
Managed lane 1 1.2%
Management 1 1.2%
Manual on Uniform Traffic Control Devices 1 1.2%
Marginal abatement cost 1 1.2%
Market economy 1 1.2%
Marketing 1 1.2%
Mass Rapid Transit (Singapore) 1 1.2%
Mental health 1 1.2%
Mergers and acquisitions 1 1.2%
Methane 1 1.2%
Metropolitan area 1 1.2%
Metropolitan planning organization 1 1.2%
Mexico City 1 1.2%
Miami metropolitan area 1 1.2%
Micro combined heat and power 1 1.2%
Microeconomics 1 1.2%
Microgrid 1 1.2%
Middle class 1 1.2%
Mild hybrid 1 1.2%
Millennials 1 1.2%
Millstone River 1 1.2%
Minimum wage 1 1.2%
Mining 1 1.2%
Mixed-income housing 1 1.2%
Mixed-use development 1 1.2%
Money laundering 1 1.2%
Montevideo 1 1.2%
Mortgage loan 1 1.2%
Moselle 1 1.2%
Motivation 1 1.2%
Multicollinearity 1 1.2%
Multimodality 1 1.2%
Municipal bond 1 1.2%
Named-entity recognition 1 1.2%
National security 1 1.2%
Natural environment 1 1.2%
Natural language processing 1 1.2%
Nature-based solutions 1 1.2%
Net income 1 1.2%
Net present value 1 1.2%
New Deal 1 1.2%
New Jersey Route 23 1 1.2%
New Jersey Route 27 1 1.2%
New Jersey Route 35 1 1.2%
New Jersey Route 4 1 1.2%
New Jersey Route 45 1 1.2%
New Jersey Route 70 1 1.2%
Nord Stream 1 1.2%
Northeast Corridor 1 1.2%
Nudge (book) 1 1.2%
Nudge theory 1 1.2%
Null hypothesis 1 1.2%
Obesity 1 1.2%
Ocean Drive (New Jersey) 1 1.2%
Oil tanker 1 1.2%
Open-source software 1 1.2%
Operating margin 1 1.2%
Optical character recognition 1 1.2%
Ordinary least squares 1 1.2%
Output (economics) 1 1.2%
Outsourcing 1 1.2%
Ownership 1 1.2%
P-value 1 1.2%
Park 1 1.2%
Park View (Washington, D.C.) 1 1.2%
Park and ride 1 1.2%
Parking lot 1 1.2%
Partnership 1 1.2%
Passenger rail terminology 1 1.2%
Patent 1 1.2%
Patient 1 1.2%
Peak demand 1 1.2%
Pedestrian crossing 1 1.2%
Peer-to-peer ridesharing 1 1.2%
Perception 1 1.2%
Photovoltaic power station 1 1.2%
Photovoltaic system 1 1.2%
Piracy 1 1.2%
Placemaking 1 1.2%
Planning 1 1.2%
Population 1 1.2%
Population density 1 1.2%
Portal Bridge 1 1.2%
Poverty threshold 1 1.2%
Power purchase agreement 1 1.2%
Power-to-gas 1 1.2%
Pricing strategies 1 1.2%
Privacy 1 1.2%
Private equity secondary market 1 1.2%
Private transport 1 1.2%
Probit 1 1.2%
Probit model 1 1.2%
Product differentiation 1 1.2%
Project management 1 1.2%
Propane 1 1.2%
Propensity score matching 1 1.2%
Property 1 1.2%
Protected intersection 1 1.2%
Psychological resilience 1 1.2%
Public finance 1 1.2%
Public housing 1 1.2%
Public policy 1 1.2%
Public service obligation 1 1.2%
Public space 1 1.2%
Public transport bus service 1 1.2%
Qualitative research 1 1.2%
Quantitative research 1 1.2%
Questionnaire 1 1.2%
Rail Baltica 1 1.2%
Rail infrastructure 1 1.2%
Railway companies of Japan 1 1.2%
Rare-earth element 1 1.2%
Rate of return 1 1.2%
Recreation 1 1.2%
Recruitment 1 1.2%
Reducing emissions from deforestation and forest degradation 1 1.2%
Refrigerant 1 1.2%
Regulation of greenhouse gases under the Clean Air Act 1 1.2%
Renewable resource 1 1.2%
Renewables Obligation (United Kingdom) 1 1.2%
Reputation 1 1.2%
Resampling (statistics) 1 1.2%
Resource 1 1.2%
Rest area 1 1.2%
Retrofitting 1 1.2%
Reuse 1 1.2%
Rhine–Main–Danube Canal 1 1.2%
Road tax 1 1.2%
Road traffic control 1 1.2%
Robot 1 1.2%
Rocket 1 1.2%
Rolling stock 1 1.2%
Roundabout 1 1.2%
Russia in the European energy sector 1 1.2%
SCADA 1 1.2%
SFpark 1 1.2%
Safety 1 1.2%
Sales 1 1.2%
San Francisco Bay Area 1 1.2%
San Joaquin Valley 1 1.2%
San José, Costa Rica 1 1.2%
Sanitation 1 1.2%
Santiago 1 1.2%
Saving 1 1.2%
Science 1 1.2%
Scooter-sharing system 1 1.2%
Scrubber 1 1.2%
Security (finance) 1 1.2%
Security token 1 1.2%
Sensitivity analysis 1 1.2%
Severe acute respiratory syndrome 1 1.2%
Signal timing 1 1.2%
Small modular reactor 1 1.2%
Smart charging 1 1.2%
Smart growth 1 1.2%
Social capital 1 1.2%
Social cost 1 1.2%
Social inequality 1 1.2%
Sociotechnical system 1 1.2%
Software 1 1.2%
Software development 1 1.2%
Solvency II Directive 2009 1 1.2%
Southern Gas Corridor 1 1.2%
Special Report on Global Warming of 1.5 °C 1 1.2%
Special member state territories and the European Union 1 1.2%
Speed bump 1 1.2%
Standard deviation 1 1.2%
Standard error 1 1.2%
Startup company 1 1.2%
Stock exchange 1 1.2%
Stock market 1 1.2%
Strait of Malacca 1 1.2%
Strategic management 1 1.2%
Stress test (financial) 1 1.2%
Subscription business model 1 1.2%
Suburb 1 1.2%
Sunset provision 1 1.2%
Supercritical carbon dioxide 1 1.2%
Survey methodology 1 1.2%
Sustainable business 1 1.2%
Synergy 1 1.2%
Systemic risk 1 1.2%
Tax credit 1 1.2%
Tax increment financing 1 1.2%
Technology roadmap 1 1.2%
Telehealth 1 1.2%
Terrorism financing 1 1.2%
The Green Deal 1 1.2%
Thermal power station 1 1.2%
Time 1 1.2%
Time series 1 1.2%
Tire-pressure monitoring system 1 1.2%
Tokenization (data security) 1 1.2%
Tom Carper 1 1.2%
Topic model 1 1.2%
Trade 1 1.2%
Traffic calming 1 1.2%
Traffic light 1 1.2%
Train-related introductions 1 1.2%
Training 1 1.2%
Tram 1 1.2%
Transportation demand management 1 1.2%
Trust (social science) 1 1.2%
TurkStream 1 1.2%
Turnover (employment) 1 1.2%
U.S. Route 130 1 1.2%
U.S. Route 206 1 1.2%
U.S. state 1 1.2%
Uncertainty 1 1.2%
Unit root 1 1.2%
United States Code 1 1.2%
United States congressional apportionment 1 1.2%
Units of transportation measurement 1 1.2%
Urban density 1 1.2%
Urban design 1 1.2%
Urban green space 1 1.2%
Used car 1 1.2%
Value (economics) 1 1.2%
Value-added tax 1 1.2%
Vehicle registration plate 1 1.2%
Virtual reality 1 1.2%
Vocational education 1 1.2%
Voice vote 1 1.2%
WASH 1 1.2%
Walking 1 1.2%
Waste 1 1.2%
Water footprint 1 1.2%
Water heating 1 1.2%
Water supply 1 1.2%
Water supply network 1 1.2%
Watt 1 1.2%
Wealth 1 1.2%
Welfare 1 1.2%
Wildfire 1 1.2%
Wind 1 1.2%
Workforce Innovation and Opportunity Act 1 1.2%
Workforce Investment Act of 1998 1 1.2%
World 1 1.2%
XBRL 1 1.2%
Youth 1 1.2%
Zoning 1 1.2%
Zoning in the United States 1 1.2%

2021

abs rel
Economy 75 76.5%
Transport 68 69.4%
Human activities 61 62.2%
Infrastructure 54 55.1%
Sustainability 52 53.1%
Public transport 50 51.0%
Technology 48 49.0%
Air pollution 42 42.9%
Road 40 40.8%
Greenhouse gas 39 39.8%
Car 35 35.7%
Climate change mitigation 35 35.7%
Electric vehicle 35 35.7%
Climate change 34 34.7%
Low-carbon economy 34 34.7%
Innovation 31 31.6%
Sustainable transport 31 31.6%
Market (economics) 29 29.6%
Tax 29 29.6%
Economic growth 28 28.6%
Renewable energy 28 28.6%
Vehicle 28 28.6%
Energy 25 25.5%
Rail transport 25 25.5%
Charging station 24 24.5%
Battery electric vehicle 23 23.5%
Efficient energy use 23 23.5%
Policy 22 22.4%
Pollution 22 22.4%
Bus 21 21.4%
Engine 21 21.4%
Plug-in hybrid 21 21.4%
Risk 21 21.4%
Traffic 21 21.4%
Hybrid electric vehicle 20 20.4%
Interest 20 20.4%
Natural gas 19 19.4%
Nature 19 19.4%
Construction 18 18.4%
Fuel 18 18.4%
Greenhouse gas emissions 18 18.4%
Loan 18 18.4%
Service industries 18 18.4%
Economics 17 17.3%
Electrical grid 17 17.3%
Fund accounting 17 17.3%
Hybrid vehicle 17 17.3%
Land transport 17 17.3%
Compressed natural gas 16 16.3%
Credit 16 16.3%
Fuel economy in automobiles 16 16.3%
Road traffic safety 16 16.3%
Automation 15 15.3%
Energy development 15 15.3%
Externality 15 15.3%
Price 15 15.3%
Self-driving car 15 15.3%
Traffic congestion 15 15.3%
Business 14 14.3%
Demand 14 14.3%
Electric car 14 14.3%
Highway 14 14.3%
Zero-emissions vehicle 14 14.3%
Consumer price index 13 13.3%
Electric battery 13 13.3%
Electricity 13 13.3%
Inflation 13 13.3%
Poverty 13 13.3%
Research 13 13.3%
Subsidy 13 13.3%
Accessibility 12 12.2%
Climate resilience 12 12.2%
Cycling infrastructure 12 12.2%
Employment 12 12.2%
Expense 12 12.2%
Fee 12 12.2%
Intelligent transportation system 12 12.2%
Money 12 12.2%
Pedestrian 12 12.2%
Physical quantities 12 12.2%
Active mobility 11 11.2%
Bond (finance) 11 11.2%
Cycling 11 11.2%
Electric power transmission 11 11.2%
European Green Deal 11 11.2%
Gross domestic product 11 11.2%
Motor vehicle 11 11.2%
Revenue 11 11.2%
Sustainable Development Goals 11 11.2%
Vehicle emission standard 11 11.2%
Carbon dioxide 10 10.2%
Investment 10 10.2%
License 10 10.2%
Life-cycle assessment 10 10.2%
Particulates 10 10.2%
Road transport 10 10.2%
Transportation engineering 10 10.2%
Vehicle-to-grid 10 10.2%
Agriculture 9 9.2%
Carbon tax 9 9.2%
Debt 9 9.2%
Electrification 9 9.2%
Emissions trading 9 9.2%
Governance 9 9.2%
Supply chain 9 9.2%
System 9 9.2%
Truck 9 9.2%
Wind power 9 9.2%
Biofuel 8 8.2%
Carbon price 8 8.2%
Distributed generation 8 8.2%
Electric power 8 8.2%
Electric power distribution 8 8.2%
Electricity generation 8 8.2%
Finance 8 8.2%
Gasoline 8 8.2%
Health 8 8.2%
Investor 8 8.2%
Paris Agreement 8 8.2%
Photovoltaics 8 8.2%
Plug-in electric vehicle 8 8.2%
Pollution in California 8 8.2%
Rechargeable battery 8 8.2%
Road pricing 8 8.2%
Solar power 8 8.2%
Train 8 8.2%
Ancillary services (electric power) 7 7.1%
Artificial intelligence 7 7.1%
COVID-19 pandemic 7 7.1%
Competition (economics) 7 7.1%
Computer security 7 7.1%
Emission intensity 7 7.1%
Evaluation 7 7.1%
Fuel cell vehicle 7 7.1%
Insurance 7 7.1%
Intermodal passenger transport 7 7.1%
Macroeconomics 7 7.1%
Price elasticity of demand 7 7.1%
Pricing 7 7.1%
Shared transport 7 7.1%
Simulation 7 7.1%
Sustainable energy 7 7.1%
Transportation planning 7 7.1%
U.S. Route 101 in California 7 7.1%
Vehicles 7 7.1%
Vehicular automation 7 7.1%
Alternative fuel 6 6.1%
Asset 6 6.1%
Biodiversity 6 6.1%
California State Route 123 6 6.1%
Carbon neutrality 6 6.1%
Carbon pricing in Australia 6 6.1%
Coal 6 6.1%
Congestion pricing 6 6.1%
Demand response 6 6.1%
Diesel fuel 6 6.1%
Driving under the influence 6 6.1%
Electrical engineering 6 6.1%
European Union Emission Trading Scheme 6 6.1%
Exhaust gas 6 6.1%
Fossil fuel 6 6.1%
Fuel cell 6 6.1%
Fuel efficiency 6 6.1%
Interchange (road) 6 6.1%
Interstate 15 in California 6 6.1%
Kilowatt-hour 6 6.1%
Labour economics 6 6.1%
Logistics 6 6.1%
MARC Train 6 6.1%
Manufacturing 6 6.1%
Mobility as a service 6 6.1%
Northeast Corridor 6 6.1%
Power (physics) 6 6.1%
Public transport bus service 6 6.1%
Rapid transit 6 6.1%
Recycling 6 6.1%
Reliability engineering 6 6.1%
Sepulveda Boulevard 6 6.1%
Smart grid 6 6.1%
Truck driver 6 6.1%
United States Code 6 6.1%
Valuation (finance) 6 6.1%
Airport 5 5.1%
Appropriations bill (United States) 5 5.1%
Bank 5 5.1%
Buford Highway 5 5.1%
Capital (economics) 5 5.1%
Cargo 5 5.1%
Coal pollution mitigation 5 5.1%
Combustion 5 5.1%
Computer network 5 5.1%
Digital transformation 5 5.1%
Effects of climate change 5 5.1%
Energiewende 5 5.1%
Energy industry 5 5.1%
Energy storage 5 5.1%
Environmental, social and corporate governance 5 5.1%
Equity (finance) 5 5.1%
Fiscal year 5 5.1%
Fixed effects model 5 5.1%
Hydrogen production 5 5.1%
Internal combustion engine 5 5.1%
Internet of things 5 5.1%
Interoperability 5 5.1%
Intersection (road) 5 5.1%
Liquefied natural gas 5 5.1%
Low-carbon fuel standard 5 5.1%
Market failure 5 5.1%
Mathematical optimization 5 5.1%
Microgrid 5 5.1%
Option (finance) 5 5.1%
Parking 5 5.1%
Politics of climate change 5 5.1%
Profit (economics) 5 5.1%
Resource 5 5.1%
San Francisco Bay Area 5 5.1%
School bus 5 5.1%
Statistics 5 5.1%
Transport infrastructure 5 5.1%
Wealth 5 5.1%
Auction 4 4.1%
Battery charger 4 4.1%
Benchmarking 4 4.1%
Bicycle 4 4.1%
Capital market 4 4.1%
Carbon capture and storage 4 4.1%
Carpool 4 4.1%
Commuting 4 4.1%
Competition 4 4.1%
Controlled-access highway 4 4.1%
Cost 4 4.1%
Curb 4 4.1%
Diesel engine 4 4.1%
Education 4 4.1%
Electric bus 4 4.1%
Factors of production 4 4.1%
Financial capital 4 4.1%
Flood 4 4.1%
Hydrogen 4 4.1%
Information 4 4.1%
Internal rate of return 4 4.1%
Interstate 10 in Arizona 4 4.1%
Investment management 4 4.1%
Levelized cost of energy 4 4.1%
Micromobility 4 4.1%
Miles per gallon gasoline equivalent 4 4.1%
Photovoltaic system 4 4.1%
Positive train control 4 4.1%
Power station 4 4.1%
Private equity 4 4.1%
Productivity 4 4.1%
Public utility 4 4.1%
Rail freight transport 4 4.1%
Regional transmission organization (North America) 4 4.1%
Regression analysis 4 4.1%
Risk management 4 4.1%
Road surface 4 4.1%
Sidewalk 4 4.1%
Smart city 4 4.1%
Solar energy 4 4.1%
Synthetic fuel 4 4.1%
Taxi 4 4.1%
Traffic collision 4 4.1%
Trans-European Transport Network 4 4.1%
Airline 3 3.1%
Biogas 3 3.1%
Bus rapid transit 3 3.1%
Business model 3 3.1%
Caltrain 3 3.1%
Carbon dioxide in Earth's atmosphere 3 3.1%
Carbon footprint 3 3.1%
Carsharing 3 3.1%
Climate change policy of the United States 3 3.1%
Competition (companies) 3 3.1%
Complete streets 3 3.1%
Conservation biology 3 3.1%
Cost–benefit analysis 3 3.1%
Database 3 3.1%
Decision-making 3 3.1%
Dependent and independent variables 3 3.1%
Development aid 3 3.1%
Ecology 3 3.1%
Economics of climate change mitigation 3 3.1%
Electric bicycle 3 3.1%
Electric vehicle battery 3 3.1%
Electricity pricing 3 3.1%
Electromagnetism 3 3.1%
Electronic Road Pricing 3 3.1%
Energy conservation 3 3.1%
Energy demand management 3 3.1%
Energy policy of the European Union 3 3.1%
Energy security 3 3.1%
Fairfield County, Connecticut 3 3.1%
Financial risk 3 3.1%
Fiscal policy 3 3.1%
Food security 3 3.1%
Forecasting 3 3.1%
Fossil fuel power station 3 3.1%
Fuel tax 3 3.1%
Funding 3 3.1%
Government incentives for plug-in electric vehicles 3 3.1%
Gross national income 3 3.1%
Hydrogen fuel 3 3.1%
Ireland 3 3.1%
Kyoto Protocol 3 3.1%
Leverage (finance) 3 3.1%
Likelihood function 3 3.1%
Low-carbon power 3 3.1%
Machine learning 3 3.1%
Maintenance (technical) 3 3.1%
Managed lane 3 3.1%
Market liquidity 3 3.1%
Matrix (mathematics) 3 3.1%
Microeconomics 3 3.1%
Motorized scooter 3 3.1%
Natural capital 3 3.1%
Natural environment 3 3.1%
Nature-based solutions 3 3.1%
Ordinary least squares 3 3.1%
Output (economics) 3 3.1%
Pace (transit) 3 3.1%
Petroleum 3 3.1%
Port 3 3.1%
Power factor 3 3.1%
Power outage 3 3.1%
Prediction 3 3.1%
Primary energy 3 3.1%
Procurement 3 3.1%
Public–private partnership 3 3.1%
Rebound effect (conservation) 3 3.1%
Regulatory compliance 3 3.1%
Research and development 3 3.1%
Retail 3 3.1%
Rice 3 3.1%
Ridesharing company 3 3.1%
Road tax 3 3.1%
Rota (island) 3 3.1%
Rush hour 3 3.1%
San Fernando Valley 3 3.1%
Santa Ana Freeway 3 3.1%
Securitization 3 3.1%
Smallholding 3 3.1%
Smart meter 3 3.1%
Social exclusion 3 3.1%
Sport utility vehicle 3 3.1%
U.S. state 3 3.1%
Unemployment 3 3.1%
United Nations Framework Convention on Climate Change 3 3.1%
Utility 3 3.1%
Virtual power plant 3 3.1%
Water 3 3.1%
World energy consumption 3 3.1%
Affordable housing 2 2.0%
Algorithm 2 2.0%
Amorphous silicon 2 2.0%
Amsterdam Airport Schiphol 2 2.0%
Amsterdam Centraal station 2 2.0%
Amsterdam Zuid station 2 2.0%
Amsterdam–Haarlem–Rotterdam railway 2 2.0%
Analysis 2 2.0%
Arbitrage 2 2.0%
Aviation 2 2.0%
BACnet 2 2.0%
Balance sheet 2 2.0%
Battery electric bus 2 2.0%
Behavior 2 2.0%
Bias 2 2.0%
Bicycle-sharing system 2 2.0%
Bill (law) 2 2.0%
Biodiesel 2 2.0%
Biomass 2 2.0%
Blended finance 2 2.0%
Blockchain 2 2.0%
Box plot 2 2.0%
Bridge 2 2.0%
Bridge scour 2 2.0%
Broadband over power lines 2 2.0%
Business case 2 2.0%
Business cycle 2 2.0%
Cadmium telluride photovoltaics 2 2.0%
Calibration 2 2.0%
California Environmental Quality Act 2 2.0%
California State Route 1 2 2.0%
Capital Beltway 2 2.0%
Capital requirement 2 2.0%
Carbon 2 2.0%
Carbon emission trading 2 2.0%
Carbon offset 2 2.0%
Carbon sequestration 2 2.0%
Cardiovascular disease 2 2.0%
Causality 2 2.0%
Chevrolet Volt 2 2.0%
Chronic condition 2 2.0%
Civil engineering 2 2.0%
Classic Maya collapse 2 2.0%
Climate bond 2 2.0%
Climate change adaptation 2 2.0%
Cobalt 2 2.0%
Coefficient of performance 2 2.0%
Cogeneration 2 2.0%
Collision avoidance system 2 2.0%
Communication protocol 2 2.0%
Computer engineering 2 2.0%
Concentrated solar power 2 2.0%
Concrete 2 2.0%
Conflict of interest 2 2.0%
Contract farming 2 2.0%
Coolant 2 2.0%
Copper indium gallium selenide solar cells 2 2.0%
Coronavirus disease 2019 2 2.0%
Cost of electricity by source 2 2.0%
Credit rating 2 2.0%
Credit rating agency 2 2.0%
Credit risk 2 2.0%
Crystalline silicon 2 2.0%
DNP3 2 2.0%
Dallas/Fort Worth International Airport 2 2.0%
Deforestation 2 2.0%
Den Haag Centraal railway station 2 2.0%
Denisovan 2 2.0%
Developing country 2 2.0%
Direct air capture 2 2.0%
Directive (European Union) 2 2.0%
Disability 2 2.0%
Discounting 2 2.0%
Discrete choice 2 2.0%
Diversification (finance) 2 2.0%
Dynamic pricing 2 2.0%
Dynamometer 2 2.0%
E-commerce 2 2.0%
Economic development 2 2.0%
Economic equilibrium 2 2.0%
Economies of scale 2 2.0%
Ecosystem 2 2.0%
Electrical substation 2 2.0%
Electrolysis 2 2.0%
Endogeneity (econometrics) 2 2.0%
Energy efficiency in transport 2 2.0%
Energy system 2 2.0%
Energy technology 2 2.0%
Engine efficiency 2 2.0%
Entrepreneurship 2 2.0%
Environmental economics 2 2.0%
Environmental justice 2 2.0%
Environmental social science 2 2.0%
Environmental technology 2 2.0%
Errors and residuals 2 2.0%
Euro 2 2.0%
European emission standards 2 2.0%
Evolution 2 2.0%
Experiment 2 2.0%
Explosive 2 2.0%
Female entrepreneurs 2 2.0%
Financial services 2 2.0%
Fixed income 2 2.0%
Food 2 2.0%
Food system 2 2.0%
Ford Fusion (Americas) 2 2.0%
Ford Fusion Hybrid 2 2.0%
Foreign exchange risk 2 2.0%
Futures contract 2 2.0%
Gasoline and diesel usage and pricing 2 2.0%
General equilibrium theory 2 2.0%
Georgia State Route 120 2 2.0%
Government debt 2 2.0%
Green vehicle 2 2.0%
Gross margin 2 2.0%
Habitat destruction 2 2.0%
Heat 2 2.0%
Heat transfer 2 2.0%
Heating, ventilation, and air conditioning 2 2.0%
Hedge (finance) 2 2.0%
Helium 2 2.0%
High voltage 2 2.0%
Hominidae 2 2.0%
Homo 2 2.0%
Hoofddorp 2 2.0%
Human 2 2.0%
Human capital 2 2.0%
Human evolution 2 2.0%
Hybrid vehicle drivetrain 2 2.0%
Hydroelectricity 2 2.0%
Hydrogen vehicle 2 2.0%
Incentive 2 2.0%
Income 2 2.0%
Indium tin oxide 2 2.0%
Information asymmetry 2 2.0%
Input–output model 2 2.0%
Interest rate 2 2.0%
Intermodal freight transport 2 2.0%
Interstate 25 in Colorado 2 2.0%
Interstate 95 in Maryland 2 2.0%
Inventory 2 2.0%
Invitation to tender 2 2.0%
Islanding 2 2.0%
Knowledge 2 2.0%
Laboratory 2 2.0%
Landscape 2 2.0%
Last mile (transportation) 2 2.0%
Liquefied petroleum gas 2 2.0%
Lithium-ion battery 2 2.0%
Logistic regression 2 2.0%
Los Angeles International Airport 2 2.0%
Lumped-element model 2 2.0%
Manufactured goods 2 2.0%
Map 2 2.0%
Mechanical engineering 2 2.0%
Metropolitan planning organization 2 2.0%
Mining 2 2.0%
Modbus 2 2.0%
Mode choice 2 2.0%
Mode of transport 2 2.0%
Monetary policy 2 2.0%
Monocrystalline silicon 2 2.0%
Monopoly 2 2.0%
Monroney sticker 2 2.0%
Monte Carlo method 2 2.0%
Motorcycle 2 2.0%
Multistage rocket 2 2.0%
National Bridge Inventory 2 2.0%
Natural gas vehicle 2 2.0%
Net present value 2 2.0%
Network congestion 2 2.0%
New Jersey Route 4 2 2.0%
Noise pollution 2 2.0%
Nuclear power 2 2.0%
Nuclear power plant 2 2.0%
OSI model 2 2.0%
Obesity 2 2.0%
Official development assistance 2 2.0%
Open Automated Demand Response 2 2.0%
Open access 2 2.0%
Overhead power line 2 2.0%
Paratransit 2 2.0%
Parking space 2 2.0%
Passivation (chemistry) 2 2.0%
Patent 2 2.0%
Pedestrian crossing 2 2.0%
Percentile 2 2.0%
Performance indicator 2 2.0%
Perovskite solar cell 2 2.0%
Power electronics 2 2.0%
Power inverter 2 2.0%
Power-line communication 2 2.0%
Privacy 2 2.0%
Private sector development 2 2.0%
Projects of Common Interest 2 2.0%
Prokaryote 2 2.0%
Public Utility Regulatory Policies Act 2 2.0%
Public good (economics) 2 2.0%
Purchasing power parity 2 2.0%
Quality of life 2 2.0%
Radiator 2 2.0%
Railway electrification system 2 2.0%
Raised pavement marker 2 2.0%
Randstad 2 2.0%
RandstadRail 2 2.0%
Range anxiety 2 2.0%
Rate of return 2 2.0%
Recent African origin of modern humans 2 2.0%
Recession 2 2.0%
Reference range 2 2.0%
Refinancing 2 2.0%
Resampling (statistics) 2 2.0%
Robust statistics 2 2.0%
Rooftop photovoltaic power station 2 2.0%
SCADA 2 2.0%
SME finance 2 2.0%
Sampling (statistics) 2 2.0%
Sanitation 2 2.0%
Scenario planning 2 2.0%
Security (finance) 2 2.0%
Sensitivity analysis 2 2.0%
Share (finance) 2 2.0%
Small and medium-sized enterprises 2 2.0%
Social cost of carbon 2 2.0%
Social discount rate 2 2.0%
Soiling (solar energy) 2 2.0%
Solar cell 2 2.0%
Solar panel 2 2.0%
Solar thermal energy 2 2.0%
Speculation 2 2.0%
Standardization 2 2.0%
Steam reforming 2 2.0%
Stock 2 2.0%
Stock market index 2 2.0%
Strategy 2 2.0%
Supercomputer 2 2.0%
Surrogate model 2 2.0%
Survey methodology 2 2.0%
Sustainable development 2 2.0%
Sustainable technologies 2 2.0%
Syndicated loan 2 2.0%
Systemic risk 2 2.0%
Telemetry 2 2.0%
Temperature 2 2.0%
Temperature coefficient 2 2.0%
Territories of the United States 2 2.0%
Thermostat 2 2.0%
Thin-film solar cell 2 2.0%
Toll road 2 2.0%
Toyota Prius 2 2.0%
Traffic simulation 2 2.0%
Train station 2 2.0%
Tram 2 2.0%
Transaction cost 2 2.0%
Transformer 2 2.0%
Transmission (mechanics) 2 2.0%
Transparency (behavior) 2 2.0%
U.S. Route 206 2 2.0%
United States vehicle emission standards 2 2.0%
Urban area 2 2.0%
Urban sprawl 2 2.0%
Urbanization 2 2.0%
Value-added tax 2 2.0%
Variable renewable energy 2 2.0%
Vehicle technology 2 2.0%
Vehicular ad hoc network 2 2.0%
Virginia Railway Express 2 2.0%
Wafer (electronics) 2 2.0%
Walkability 2 2.0%
Waste heat 2 2.0%
Water scarcity 2 2.0%
Water supply 2 2.0%
Work (human activity) 2 2.0%
Worldwide Harmonised Light Vehicles Test Procedure 2 2.0%
Yield (finance) 2 2.0%
2007–2008 world food price crisis 1 1.0%
2009 Supervisory Capital Assessment Program 1 1.0%
5G 1 1.0%
Adaptive reuse 1 1.0%
Advanced driver-assistance systems 1 1.0%
Adverse selection 1 1.0%
Air cargo 1 1.0%
Air traffic control 1 1.0%
Algorithmic trading 1 1.0%
Altmetrics 1 1.0%
Americans with Disabilities Act of 1990 1 1.0%
Animal testing 1 1.0%
Apartment 1 1.0%
Applications of artificial intelligence 1 1.0%
Apprenticeship 1 1.0%
Aquaculture 1 1.0%
ArcGIS 1 1.0%
Asset allocation 1 1.0%
Asset management 1 1.0%
Automotive industry 1 1.0%
Average treatment effect 1 1.0%
Bank regulation 1 1.0%
Basel II 1 1.0%
Basel III 1 1.0%
Belfast 1 1.0%
Bidding 1 1.0%
Big data 1 1.0%
Bond credit rating 1 1.0%
Bond market 1 1.0%
Bootstrapping (statistics) 1 1.0%
Brexit 1 1.0%
Brightline West 1 1.0%
Buangkok MRT station 1 1.0%
Bus contracting model of Singapore 1 1.0%
Bus lane 1 1.0%
Bus stop 1 1.0%
Business economics 1 1.0%
C band (IEEE) 1 1.0%
California Manual on Uniform Traffic Control Devices 1 1.0%
California State Route 37 1 1.0%
Carbon Offsetting and Reduction Scheme for International Aviation 1 1.0%
Carbon leakage 1 1.0%
Case study 1 1.0%
Catherine Wolfram 1 1.0%
Certificate of Entitlement 1 1.0%
Chevrolet Bolt 1 1.0%
Circular economy 1 1.0%
Citation 1 1.0%
Clay Street Bridge 1 1.0%
Clean technology 1 1.0%
Climate 1 1.0%
Climate finance 1 1.0%
Coase theorem 1 1.0%
Coefficient of determination 1 1.0%
Cointegration 1 1.0%
Commercial driver's license 1 1.0%
Committee 1 1.0%
Community 1 1.0%
Compressed-air energy storage 1 1.0%
Computable general equilibrium 1 1.0%
Computer simulation 1 1.0%
Consumption (economics) 1 1.0%
Contract 1 1.0%
Cork Airport 1 1.0%
Corporate bond 1 1.0%
Cotati, California 1 1.0%
County Route 508 (New Jersey) 1 1.0%
County Route 537 (New Jersey) 1 1.0%
Creative Commons license 1 1.0%
Current account (balance of payments) 1 1.0%
Cyber-security regulation 1 1.0%
Death 1 1.0%
Decision tree learning 1 1.0%
Default (finance) 1 1.0%
Deficit spending 1 1.0%
Delaware and Raritan Canal 1 1.0%
Delivery (commerce) 1 1.0%
Deregulation 1 1.0%
Diffusion of innovations 1 1.0%
Digital twin 1 1.0%
Disaster risk reduction 1 1.0%
Distribution (marketing) 1 1.0%
Dodd–Frank Wall Street Reform and Consumer Protection Act 1 1.0%
Dow Jones Sustainability Indices 1 1.0%
Drought 1 1.0%
Dublin 1 1.0%
Duplex (building) 1 1.0%
EZ-Link 1 1.0%
Economic bubble 1 1.0%
Economic efficiency 1 1.0%
Economic impacts of climate change 1 1.0%
Economic inequality 1 1.0%
Ecotax 1 1.0%
Elasticity (economics) 1 1.0%
Electric power quality 1 1.0%
Electric truck 1 1.0%
Electrification of Caltrain 1 1.0%
Electronic toll collection 1 1.0%
Embarcadero (San Francisco) 1 1.0%
Emerging market 1 1.0%
Emerging technologies 1 1.0%
Emissions budget 1 1.0%
Employee benefits 1 1.0%
Employer transportation benefits in the United States 1 1.0%
Energy intensity 1 1.0%
Energy mix 1 1.0%
Energy return on investment 1 1.0%
Energy-efficient driving 1 1.0%
Environmental degradation 1 1.0%
Environmental impact of transport 1 1.0%
Environmental noise 1 1.0%
European Train Control System 1 1.0%
Exchange-traded fund 1 1.0%
Exclusion of the null hypothesis 1 1.0%
Executive Order 12866 1 1.0%
Farm 1 1.0%
Feed-in tariff 1 1.0%
Financial analyst 1 1.0%
Financial crisis of 2007–2008 1 1.0%
Financial markets 1 1.0%
Financial regulation 1 1.0%
Financial stability 1 1.0%
Flat rate 1 1.0%
Fluorinated gases 1 1.0%
Food desert 1 1.0%
Food industry 1 1.0%
Food policy 1 1.0%
Food safety 1 1.0%
Foynes 1 1.0%
Free public transport 1 1.0%
Fuel oil 1 1.0%
Game theory 1 1.0%
Garden State Parkway 1 1.0%
General Data Protection Regulation 1 1.0%
Gentrification 1 1.0%
Geographic information system 1 1.0%
Glider (Belfast) 1 1.0%
Goal 1 1.0%
Google Scholar 1 1.0%
Government budget balance 1 1.0%
Government spending 1 1.0%
Green infrastructure 1 1.0%
Greenhouse 1 1.0%
Greenhouse effect 1 1.0%
Grid energy storage 1 1.0%
Guard rail 1 1.0%
HAWK beacon 1 1.0%
Hazard 1 1.0%
Heating degree day 1 1.0%
Heavy fuel oil 1 1.0%
Hedge fund 1 1.0%
High-speed rail 1 1.0%
High-yield debt 1 1.0%
Homelessness 1 1.0%
Hours of service 1 1.0%
Hunger 1 1.0%
Hyliion Inc. 1 1.0%
Illegal taxi operation 1 1.0%
Imperfect competition 1 1.0%
Implementation 1 1.0%
Inclusionary zoning 1 1.0%
Index-based insurance 1 1.0%
Industries (economics) 1 1.0%
Infill 1 1.0%
Information privacy 1 1.0%
Inspection 1 1.0%
Intelligence 1 1.0%
Intensive farming 1 1.0%
Intermediate consumption 1 1.0%
Internal control 1 1.0%
International roughness index 1 1.0%
International trade 1 1.0%
Interstate 295 (Delaware–Pennsylvania) 1 1.0%
Interurban 1 1.0%
Joe Biden 1 1.0%
Kerosene 1 1.0%
Leadership 1 1.0%
Least squares 1 1.0%
Level crossing 1 1.0%
Light rail 1 1.0%
Lithium 1 1.0%
London congestion charge 1 1.0%
London low emission zone 1 1.0%
Long run and short run 1 1.0%
Low-emission zone 1 1.0%
Luxury vehicle 1 1.0%
Macroprudential regulation 1 1.0%
Malnutrition 1 1.0%
Manual for Streets 1 1.0%
Manual on Uniform Traffic Control Devices 1 1.0%
Marginal cost 1 1.0%
Marine propulsion 1 1.0%
Market concentration 1 1.0%
Mass Rapid Transit (Singapore) 1 1.0%
Matthew W. Daus 1 1.0%
McMansion 1 1.0%
Mean squared error 1 1.0%
Mergers and acquisitions 1 1.0%
Metal 1 1.0%
Microgeneration 1 1.0%
Microsoft Access 1 1.0%
Missing middle housing 1 1.0%
Mixed-income housing 1 1.0%
Mixed-use development 1 1.0%
Modal share 1 1.0%
Municipal bond 1 1.0%
NOx 1 1.0%
National Environmental Policy Act 1 1.0%
Nationally Determined Contributions 1 1.0%
Natural gas storage 1 1.0%
Natural logarithm 1 1.0%
Natural monopoly 1 1.0%
Neodymium 1 1.0%
New Jersey Route 17 1 1.0%
New Jersey Route 21 1 1.0%
New Jersey Route 27 1 1.0%
New Jersey Route 31 1 1.0%
New Jersey Route 35 1 1.0%
New Jersey Route 440 1 1.0%
New Jersey Route 45 1 1.0%
New Jersey Route 47 1 1.0%
New Jersey Route 495 1 1.0%
New Jersey Route 55 1 1.0%
New Jersey Route 73 1 1.0%
Nominal rigidity 1 1.0%
Non-revenue water 1 1.0%
North East MRT line 1 1.0%
Ocean Drive (New Jersey) 1 1.0%
Ottmar Edenhofer 1 1.0%
Outsourcing 1 1.0%
Over-the-counter (finance) 1 1.0%
Parent–teacher association 1 1.0%
Passive management 1 1.0%
Personal data 1 1.0%
Pete Buttigieg 1 1.0%
Pipeline transport 1 1.0%
Port of Cork 1 1.0%
Port of Hueneme 1 1.0%
Portal Bridge 1 1.0%
Pothole 1 1.0%
Power-to-X 1 1.0%
Power-to-gas 1 1.0%
Precautionary principle 1 1.0%
Precision agriculture 1 1.0%
Price floor 1 1.0%
Product liability 1 1.0%
Project finance 1 1.0%
Propensity score matching 1 1.0%
Property 1 1.0%
Property tax 1 1.0%
Psychological resilience 1 1.0%
Public finance 1 1.0%
Public policy 1 1.0%
Puerto Rico 1 1.0%
Pumped-storage hydroelectricity 1 1.0%
Quantitative research 1 1.0%
Q–Q plot 1 1.0%
Radio spectrum 1 1.0%
Rail Safety Improvement Act of 2008 1 1.0%
Rail transportation in the United States 1 1.0%
Railroad classes 1 1.0%
Ramp meter 1 1.0%
Random forest 1 1.0%
Raritan River 1 1.0%
Real estate appraisal 1 1.0%
Reason 1 1.0%
Regulation 1 1.0%
Remote sensing 1 1.0%
Remote work 1 1.0%
Renewable fuels 1 1.0%
Representative Concentration Pathway 1 1.0%
Research Triangle 1 1.0%
Revenue bond 1 1.0%
Right to food 1 1.0%
Risk assessment 1 1.0%
Risk aversion 1 1.0%
River Line (NJ Transit) 1 1.0%
River Rouge (Michigan) 1 1.0%
Road infrastructure 1 1.0%
Road safety 1 1.0%
Road surface marking 1 1.0%
Roundabout 1 1.0%
Rounding 1 1.0%
Rulemaking 1 1.0%
Rumble strip 1 1.0%
Run-off-road collision 1 1.0%
Safety 1 1.0%
Saginaw, Michigan 1 1.0%
Sales 1 1.0%
Science 1 1.0%
Sea level rise 1 1.0%
Secondary suite 1 1.0%
Serious game 1 1.0%
Shadow banking system 1 1.0%
Shannon Airport 1 1.0%
Shared space 1 1.0%
Shoulder (road) 1 1.0%
Significant figures 1 1.0%
Singapore Area Licensing Scheme 1 1.0%
Smart charging 1 1.0%
Social Security (United States) 1 1.0%
Socially responsible investing 1 1.0%
Soil 1 1.0%
Sonoma County, California 1 1.0%
Sonoma–Marin Area Rail Transit 1 1.0%
South America 1 1.0%
Special-purpose acquisition company 1 1.0%
Speed limit 1 1.0%
Staggers Rail Act 1 1.0%
Standard error 1 1.0%
Startup company 1 1.0%
Stormwater 1 1.0%
Street 1 1.0%
Stress (biology) 1 1.0%
Stress test (financial) 1 1.0%
Subordinated debt 1 1.0%
Surveying 1 1.0%
Sustainable Communities and Climate Protection Act of 2008 1 1.0%
Sustainable Development Goal 6 1 1.0%
Sustainable Development Goal 7 1 1.0%
Sustainable Development Goal 9 1 1.0%
Sustainable finance 1 1.0%
Swap (finance) 1 1.0%
Sydney Coordinated Adaptive Traffic System 1 1.0%
Systemically important financial institution 1 1.0%
Systems engineering 1 1.0%
Tariff 1 1.0%
Tax exemption 1 1.0%
Taxicab 1 1.0%
Taxis of New York City 1 1.0%
Taxis of the United Kingdom 1 1.0%
Team 1 1.0%
Technology roadmap 1 1.0%
Threat model 1 1.0%
Time series 1 1.0%
Tomato 1 1.0%
Tonnage 1 1.0%
Traceability 1 1.0%
Track gauge 1 1.0%
Track geometry car 1 1.0%
Trade 1 1.0%
Trade facilitation 1 1.0%
Traffic calming 1 1.0%
Traffic flow 1 1.0%
Traffic light 1 1.0%
Trail 1 1.0%
Transit-oriented development 1 1.0%
Transmission system operator 1 1.0%
Two-part tariff 1 1.0%
U.S. Route 1 in Florida 1 1.0%
U.S. Route 130 1 1.0%
U.S. Route 16 in Michigan 1 1.0%
U.S. Route 322 in New Jersey 1 1.0%
U.S. Route 395 in California 1 1.0%
U.S. Route 41 in Georgia 1 1.0%
Underwriting 1 1.0%
Unit root 1 1.0%
Unmanned aerial vehicle 1 1.0%
Urban agriculture 1 1.0%
Urban planning 1 1.0%
Value proposition 1 1.0%
Vegetable 1 1.0%
Venture capital 1 1.0%
Vulnerability 1 1.0%
WASH 1 1.0%
Walking 1 1.0%
Warehouse 1 1.0%
Waste 1 1.0%
Water conservation 1 1.0%
Water footprint 1 1.0%
Water tariff 1 1.0%
Web of Science 1 1.0%
Welfare 1 1.0%
World Wide Web 1 1.0%
World energy supply and consumption 1 1.0%
Zoning 1 1.0%

2022

abs rel
Economy 24 75.0%
Renewable energy 19 59.4%
Technology 19 59.4%
Energy 18 56.2%
Low-carbon economy 18 56.2%
Nature 17 53.1%
Infrastructure 14 43.8%
Electrical grid 13 40.6%
Market (economics) 13 40.6%
Fuel 12 37.5%
Sustainability 12 37.5%
Solar power 11 34.4%
Transport 11 34.4%
Wind power 11 34.4%
Efficient energy use 10 31.2%
Electric vehicle 10 31.2%
Energy development 10 31.2%
Photovoltaics 10 31.2%
Physical quantities 10 31.2%
Electricity generation 9 28.1%
Greenhouse gas emissions 9 28.1%
Human activities 9 28.1%
Rail transport 9 28.1%
Air pollution 8 25.0%
Climate change 8 25.0%
Electric battery 8 25.0%
Innovation 8 25.0%
Natural gas 8 25.0%
Subsidy 8 25.0%
Sustainable energy 8 25.0%
Tax 8 25.0%
Climate change mitigation 7 21.9%
Climate resilience 7 21.9%
Electric power 7 21.9%
Electric power transmission 7 21.9%
Electrical engineering 7 21.9%
Governance 7 21.9%
Greenhouse gas 7 21.9%
Nuclear power 7 21.9%
Supply chain 7 21.9%
Carbon neutrality 6 18.8%
Distributed generation 6 18.8%
Economic growth 6 18.8%
Electricity 6 18.8%
Internet of things 6 18.8%
Photovoltaic system 6 18.8%
Policy 6 18.8%
Poverty 6 18.8%
Risk 6 18.8%
Road 6 18.8%
Train 6 18.8%
World energy supply and consumption 6 18.8%
Coal 5 15.6%
Competition (economics) 5 15.6%
Computer security 5 15.6%
Demand response 5 15.6%
Electrification 5 15.6%
Energy production 5 15.6%
Energy security 5 15.6%
European Green Deal 5 15.6%
Externality 5 15.6%
Grid energy storage 5 15.6%
Pollution 5 15.6%
Power outage 5 15.6%
Public transport 5 15.6%
Rail freight transport 5 15.6%
Reliability engineering 5 15.6%
Service industries 5 15.6%
Sustainable technologies 5 15.6%
Ancillary services (electric power) 4 12.5%
Car 4 12.5%
Carbon dioxide 4 12.5%
Carbon price 4 12.5%
Carbon pricing in Australia 4 12.5%
Carbon tax 4 12.5%
Cargo 4 12.5%
Central heating 4 12.5%
City 4 12.5%
Computing 4 12.5%
Ecosystem 4 12.5%
Electromagnetism 4 12.5%
Emissions trading 4 12.5%
Energy storage 4 12.5%
Energy technology 4 12.5%
Heat pump 4 12.5%
Kilowatt-hour 4 12.5%
Liquefied natural gas 4 12.5%
Load management 4 12.5%
Logistics 4 12.5%
Microgrid 4 12.5%
Mini-grid 4 12.5%
Natural environment 4 12.5%
Off-the-grid 4 12.5%
Power (physics) 4 12.5%
Power station 4 12.5%
Road pricing 4 12.5%
Solar energy 4 12.5%
Sustainable transport 4 12.5%
Traffic congestion 4 12.5%
Vehicle 4 12.5%
Vehicle emission standard 4 12.5%
Vehicle-to-grid 4 12.5%
Automation 3 9.4%
Belt and Road Initiative 3 9.4%
Biogas 3 9.4%
Bus 3 9.4%
Business 3 9.4%
Cloud computing 3 9.4%
Compressed natural gas 3 9.4%
Demand 3 9.4%
Economics 3 9.4%
Electric generator 3 9.4%
Energy conservation 3 9.4%
Energy poverty 3 9.4%
Engine 3 9.4%
Euro 3 9.4%
Evaluation 3 9.4%
Fossil fuel 3 9.4%
Health 3 9.4%
Hybrid vehicle 3 9.4%
Hydroelectricity 3 9.4%
Income 3 9.4%
Life-cycle assessment 3 9.4%
Motorized scooter 3 9.4%
NOx 3 9.4%
Offshore wind power 3 9.4%
Particulates 3 9.4%
Port 3 9.4%
Power inverter 3 9.4%
Pricing 3 9.4%
Railway electrification system 3 9.4%
Recycling 3 9.4%
Regional transmission organization (North America) 3 9.4%
Resource 3 9.4%
Self-driving car 3 9.4%
Ship 3 9.4%
Solar panel 3 9.4%
System 3 9.4%
Taxi 3 9.4%
Traffic 3 9.4%
Traffic collision 3 9.4%
Truck 3 9.4%
Value chain 3 9.4%
Water 3 9.4%
Zero-energy building 3 9.4%
Accessibility 2 6.2%
Air source heat pump 2 6.2%
Aluminium 2 6.2%
Analytics 2 6.2%
Artificial intelligence 2 6.2%
Auction 2 6.2%
Battery charger 2 6.2%
Best practice 2 6.2%
Biodiesel 2 6.2%
Biodiversity 2 6.2%
COVID-19 pandemic 2 6.2%
Cabotage 2 6.2%
Carbon capture and storage 2 6.2%
Charging station 2 6.2%
Chemical industry 2 6.2%
Circular economy 2 6.2%
Commuting 2 6.2%
Containerization 2 6.2%
Cost of living 2 6.2%
Cyberattack 2 6.2%
Cyberwarfare 2 6.2%
Cycling 2 6.2%
Cycling infrastructure 2 6.2%
Dependent and independent variables 2 6.2%
Diesel engine 2 6.2%
Diesel generator 2 6.2%
Digital Markets Act 2 6.2%
Digitization 2 6.2%
Direct current 2 6.2%
EPR (nuclear reactor) 2 6.2%
Electric car 2 6.2%
Electric motor 2 6.2%
Electric power distribution 2 6.2%
Electric road 2 6.2%
Electricity pricing 2 6.2%
Energiewende 2 6.2%
Energy industry 2 6.2%
Energy system 2 6.2%
European Battery Alliance 2 6.2%
European Union Emissions Trading System 2 6.2%
Exchange rate 2 6.2%
Finance 2 6.2%
Forecasting 2 6.2%
Freight transport 2 6.2%
Fuel economy in automobiles 2 6.2%
Fuel efficiency 2 6.2%
Gasoline 2 6.2%
Geothermal energy 2 6.2%
Green hydrogen 2 6.2%
Health equity 2 6.2%
Heating, ventilation, and air conditioning 2 6.2%
Highway 2 6.2%
Inflation 2 6.2%
Intelligent transportation system 2 6.2%
Intermodal freight transport 2 6.2%
Interoperability 2 6.2%
Investment 2 6.2%
Islanding 2 6.2%
Levelized cost of energy 2 6.2%
Liquefied petroleum gas 2 6.2%
Lithium 2 6.2%
Locomotive 2 6.2%
Longer Heavier Vehicle 2 6.2%
Magnesium 2 6.2%
Magnet 2 6.2%
Manufacturing 2 6.2%
Maritime transport 2 6.2%
Mining 2 6.2%
Mode choice 2 6.2%
Mode of transport 2 6.2%
Neodymium 2 6.2%
Neodymium magnet 2 6.2%
Parking 2 6.2%
Patent 2 6.2%
Peak demand 2 6.2%
Performance appraisal 2 6.2%
Petroleum 2 6.2%
Politics 2 6.2%
Polycrystalline silicon 2 6.2%
Price 2 6.2%
Price elasticity of demand 2 6.2%
Public housing 2 6.2%
Pump 2 6.2%
Rapid transit 2 6.2%
Rare-earth element 2 6.2%
Research 2 6.2%
Security 2 6.2%
Shared transport 2 6.2%
Short-sea shipping 2 6.2%
Simulation 2 6.2%
Smart charging 2 6.2%
Smart meter 2 6.2%
Solar cell 2 6.2%
Speciality chemicals 2 6.2%
Sustainable Development Goal 7 2 6.2%
Sustainable Development Goals 2 6.2%
Sustainable development 2 6.2%
Taxis of the United Kingdom 2 6.2%
Trade 2 6.2%
Trans-European Transport Network 2 6.2%
Transmission system operator 2 6.2%
Uranium 2 6.2%
Urban planning 2 6.2%
Utility frequency 2 6.2%
Variable renewable energy 2 6.2%
Vehicular automation 2 6.2%
Vignette (road tax) 2 6.2%
Virtual power plant 2 6.2%
Water heating 2 6.2%
Watt 2 6.2%
Welfare 2 6.2%
Wind turbine 2 6.2%
World energy resources 2 6.2%
Zero-emissions vehicle 2 6.2%
5G 1 3.1%
Accounting 1 3.1%
Active mobility 1 3.1%
Affordable housing 1 3.1%
Affordable housing in Canada 1 3.1%
Africa 1 3.1%
Air conditioning 1 3.1%
Airline 1 3.1%
Airport 1 3.1%
Aktau 1 3.1%
Alternative fuel 1 3.1%
Anti-aircraft warfare 1 3.1%
ArcGIS 1 3.1%
Asia 1 3.1%
Asian Highway Network 1 3.1%
Audit 1 3.1%
Baku–Tbilisi–Kars railway 1 3.1%
Bank 1 3.1%
Base load 1 3.1%
Battery electric vehicle 1 3.1%
Beirut 1 3.1%
Bicycle 1 3.1%
Bill (law) 1 3.1%
Bioenergy 1 3.1%
Biofuel 1 3.1%
Biomass 1 3.1%
Black carbon 1 3.1%
Bob Crow 1 3.1%
Border control 1 3.1%
Break of gauge 1 3.1%
Brexit 1 3.1%
Brownfield land 1 3.1%
Bus rapid transit 1 3.1%
Capacity building 1 3.1%
Carbon Offsetting and Reduction Scheme for International Aviation 1 3.1%
Carbon dioxide removal 1 3.1%
Carbon footprint 1 3.1%
Carpool 1 3.1%
Caspian Sea 1 3.1%
Central Asia 1 3.1%
Child 1 3.1%
Child care 1 3.1%
Child poverty 1 3.1%
City Journal 1 3.1%
Climate change adaptation 1 3.1%
Combustion 1 3.1%
Compact city 1 3.1%
Concentrated solar power 1 3.1%
Conference on the Future of Europe 1 3.1%
Construction 1 3.1%
Consumer price index 1 3.1%
Consumption (economics) 1 3.1%
Core inflation 1 3.1%
Correlation 1 3.1%
Cost–benefit analysis 1 3.1%
Credit 1 3.1%
Crystalline silicon 1 3.1%
Decibel 1 3.1%
Direct air capture 1 3.1%
Disability 1 3.1%
Diversity (business) 1 3.1%
Dry port 1 3.1%
Dwelling 1 3.1%
Earth sciences 1 3.1%
Eco-Management and Audit Scheme 1 3.1%
Economic development 1 3.1%
Economic equilibrium 1 3.1%
Economic inequality 1 3.1%
Economic surplus 1 3.1%
Economics of climate change mitigation 1 3.1%
Economy and the environment 1 3.1%
Ecosystem service 1 3.1%
Education 1 3.1%
Electric bicycle 1 3.1%
Emission intensity 1 3.1%
Employment 1 3.1%
Energy and the environment 1 3.1%
Energy economics 1 3.1%
Energy performance certificate 1 3.1%
Energy policy of Australia 1 3.1%
Energy policy of the United States 1 3.1%
Energy poverty and cooking 1 3.1%
Energy subsidy 1 3.1%
Energy transition 1 3.1%
Environmental gentrification 1 3.1%
Environmental law 1 3.1%
Environmental policy 1 3.1%
Environmental resource management 1 3.1%
Environmental technology 1 3.1%
Estimator 1 3.1%
European emission standards 1 3.1%
Eviction 1 3.1%
Exhaust gas 1 3.1%
Expense 1 3.1%
Export 1 3.1%
Extreme poverty 1 3.1%
Extreme weather 1 3.1%
Feed-in tariff 1 3.1%
Ferry 1 3.1%
Financial services 1 3.1%
Financial technology 1 3.1%
Fixed effects model 1 3.1%
Food security 1 3.1%
Fossil fuel power station 1 3.1%
Fraud deterrence 1 3.1%
Funding 1 3.1%
Futures contract 1 3.1%
Gas 1 3.1%
Gentrification 1 3.1%
Geothermal power 1 3.1%
Glasgow 1 3.1%
Glasgow Subway 1 3.1%
Glass 1 3.1%
Government budget balance 1 3.1%
Green job 1 3.1%
Gross domestic product 1 3.1%
Habitat III 1 3.1%
Health care 1 3.1%
Hedge (finance) 1 3.1%
Hedonic regression 1 3.1%
Herfindahl–Hirschman Index 1 3.1%
High-occupancy vehicle lane 1 3.1%
High-speed rail 1 3.1%
Household income in the United States 1 3.1%
Housing Benefit 1 3.1%
Hybrid electric vehicle 1 3.1%
Hydrogen 1 3.1%
Hydrogen economy 1 3.1%
Hydrogen production 1 3.1%
Influenza 1 3.1%
Influenza A virus subtype H1N1 1 3.1%
Insurance 1 3.1%
Internal audit 1 3.1%
Internal control 1 3.1%
International North–South Transport Corridor 1 3.1%
LGBT 1 3.1%
Labour economics 1 3.1%
Land transport 1 3.1%
Land-use planning 1 3.1%
Landlocked country 1 3.1%
Landlord 1 3.1%
Law 1 3.1%
Lebanese pound 1 3.1%
Levelling up policy of the Boris Johnson government 1 3.1%
Logistics Performance Index 1 3.1%
Low technology 1 3.1%
Low-carbon fuel standard 1 3.1%
Macroeconomics 1 3.1%
Management 1 3.1%
Market concentration 1 3.1%
Market liquidity 1 3.1%
Market power 1 3.1%
Merit order 1 3.1%
Metal 1 3.1%
Micromobility 1 3.1%
Missile 1 3.1%
Mobility as a service 1 3.1%
Monetary policy 1 3.1%
Monopoly 1 3.1%
Montreux Convention Regarding the Regime of the Straits 1 3.1%
Mortgage loan 1 3.1%
Multi-junction solar cell 1 3.1%
Nationally Determined Contributions 1 3.1%
Natural gas storage 1 3.1%
Natural gas vehicle 1 3.1%
Natural resources 1 3.1%
Net present value 1 3.1%
New York energy law 1 3.1%
Next Generation EU 1 3.1%
Noise pollution 1 3.1%
Nuclear proliferation 1 3.1%
Nuclear reactor 1 3.1%
Open data 1 3.1%
Open energy system models 1 3.1%
Over-the-counter (finance) 1 3.1%
Overfitting 1 3.1%
Own risk and solvency assessment 1 3.1%
Oxide 1 3.1%
Pan-European Pension 1 3.1%
Pandemic 1 3.1%
Parking lot 1 3.1%
Pedestrian 1 3.1%
Pension 1 3.1%
Photovoltaic power station 1 3.1%
Photovoltaic thermal hybrid solar collector 1 3.1%
Pipeline transport 1 3.1%
Plastic 1 3.1%
Plug-in hybrid 1 3.1%
Polymer 1 3.1%
Population health 1 3.1%
Poverty reduction 1 3.1%
Production function 1 3.1%
Productivity 1 3.1%
Profit (economics) 1 3.1%
Public good (economics) 1 3.1%
Public health 1 3.1%
Public schemes for energy efficient refurbishment 1 3.1%
Public transport bus service 1 3.1%
Public utility 1 3.1%
Public–private partnership 1 3.1%
Rail transportation in the United States 1 3.1%
Real estate appraisal 1 3.1%
Real estate economics 1 3.1%
Refrigeration 1 3.1%
Refrigerator 1 3.1%
Regional policy of the European Union 1 3.1%
Regulatory compliance 1 3.1%
Renewable energy commercialization 1 3.1%
Renewable energy in the European Union 1 3.1%
Renewable energy transition 1 3.1%
Renewable heat 1 3.1%
Renewable resources 1 3.1%
Renovation 1 3.1%
Renting 1 3.1%
Risk management 1 3.1%
Safety 1 3.1%
Santiago 1 3.1%
Scrappage program 1 3.1%
Severe acute respiratory syndrome 1 3.1%
Severe acute respiratory syndrome coronavirus 2 1 3.1%
Sidewalk 1 3.1%
Single European Sky 1 3.1%
Small and medium-sized enterprises 1 3.1%
Smallholding 1 3.1%
Smart card 1 3.1%
Smart city 1 3.1%
Social cost 1 3.1%
Social determinants of health 1 3.1%
Social distancing 1 3.1%
Socioeconomic status 1 3.1%
Solar lamp 1 3.1%
Solar thermal energy 1 3.1%
Solvency II 1 3.1%
Southwest Power Pool 1 3.1%
Steelmaking 1 3.1%
Stranded asset 1 3.1%
Strategy 1 3.1%
Stress test (financial) 1 3.1%
Stress testing 1 3.1%
Sustainable Development Goal 13 1 3.1%
Sustainable Development Goal 9 1 3.1%
Sustainable city 1 3.1%
Sustainable finance 1 3.1%
Swap (finance) 1 3.1%
Systemic risk 1 3.1%
Tax incidence 1 3.1%
Tertiary sector of the economy 1 3.1%
Thermal energy storage 1 3.1%
Thermal insulation 1 3.1%
Thermal power station 1 3.1%
Third Energy Package 1 3.1%
Time series 1 3.1%
Trade agreement 1 3.1%
Trade union 1 3.1%
Trans-Asian Railway 1 3.1%
Transportation demand management 1 3.1%
Transportation planning 1 3.1%
Underwriting 1 3.1%
Uranium mining 1 3.1%
Urban green space 1 3.1%
Urban sprawl 1 3.1%
Valuation (finance) 1 3.1%
Value capture 1 3.1%
Volatility (finance) 1 3.1%
Wafer (electronics) 1 3.1%
White certificates 1 3.1%
Wind farm 1 3.1%
Winston Churchill 1 3.1%
ZoneCard 1 3.1%
Zoning 1 3.1%

wikitags: missing year

abs rel
Car 2 100.0%
Carsharing 2 100.0%
Economy 2 100.0%
Electric vehicle 2 100.0%
Human activities 2 100.0%
Infrastructure 2 100.0%
Mobility as a service 2 100.0%
Policy 2 100.0%
Public transport 2 100.0%
Road pricing 2 100.0%
Self-driving car 2 100.0%
Sustainability 2 100.0%
Technology 2 100.0%
Transport 2 100.0%
Accessibility 1 50.0%
Active mobility 1 50.0%
Activity centre 1 50.0%
Air pollution 1 50.0%
Automobile dependency 1 50.0%
Battery electric vehicle 1 50.0%
Biofuel 1 50.0%
Carbon price 1 50.0%
Carpool 1 50.0%
Charging station 1 50.0%
Climate change mitigation 1 50.0%
Congestion pricing 1 50.0%
Corporate average fuel economy 1 50.0%
Efficient energy use 1 50.0%
Electric bicycle 1 50.0%
Electric power transmission 1 50.0%
Electrical grid 1 50.0%
Electricity generation 1 50.0%
Emission standard 1 50.0%
Energy 1 50.0%
Energy conversion efficiency 1 50.0%
Fee 1 50.0%
Fuel 1 50.0%
Fuel economy in automobiles 1 50.0%
Fuel tax 1 50.0%
Gasoline 1 50.0%
Governance 1 50.0%
Greenhouse gas 1 50.0%
Innovation 1 50.0%
Internal combustion engine 1 50.0%
Life-cycle assessment 1 50.0%
Low-carbon economy 1 50.0%
Low-carbon fuel standard 1 50.0%
Market (economics) 1 50.0%
Motorized scooter 1 50.0%
Natural gas 1 50.0%
Net metering 1 50.0%
Parking 1 50.0%
Pedelec 1 50.0%
Peer-to-peer ridesharing 1 50.0%
Plug-in electric vehicle 1 50.0%
Plug-in hybrid 1 50.0%
Pricing 1 50.0%
Rail transport 1 50.0%
Rapid transit 1 50.0%
Renewable energy 1 50.0%
Research 1 50.0%
Ridesharing company 1 50.0%
Road 1 50.0%
Scooter-sharing system 1 50.0%
Shared mobility 1 50.0%
Shared transport 1 50.0%
Sharing economy 1 50.0%
Simulation 1 50.0%
Subsidy 1 50.0%
Sustainable transport 1 50.0%
Tax 1 50.0%
Taxicab 1 50.0%
Technological transitions 1 50.0%
Traffic congestion 1 50.0%
Value proposition 1 50.0%
Vehicle 1 50.0%
Zero-emissions vehicle 1 50.0%