Traffic crashes kill and injure millions worldwide every year and are a major drain on economic development. Improving road safety would produce huge payoffs, especially in lower-income countries.
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Articles on Transportation policy
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Studies show that when people can ride in a car without having to operate it, they increase their car use. That could increase traffic and pollution, unless government puts a price on car travel.
Electric scooter rides soared from zero to 88 million a year between 2017 and 2019. But launching e-scooters in cities without safe infrastructure or clear rules of the road can be deadly.
Parcel and courier delivery vehicles are often blamed for traffic congestion in our cities. But they’re only a fraction of the traffic caused by tradespeople and other services.
Rail advocates often make the case that trains are a cleaner mode of transportation, but why is that so? And what would it take to expand rail in the U.S.?
US cities were designed and engineered around cars. Now some are working to increase walking and biking, but the shift isn’t easy.
Top contributors
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Professor, School of Public Policy, University of Maryland, Baltimore County
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Executive Director of the Center for Railway Research and Education, Michigan State University
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Sustainable Logistics Researcher, Vienna University of Economics and Business
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Professor of Civil and Environmental Engineering, University of Tennessee
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Policy Director, Institute of Transportation Studies, University of California, Davis
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Professional Researcher, Plug-in Hybrid & Electric Vehicle Research Center, University of California, Davis
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Director, 3 Revolutions Future Mobility Program, University of California, Davis
