Why do we use gasoline for small vehicles and diesel fuel for big vehicles?

Both gasoline and diesel fuel are refined from crude oil, but they are good for different things and can’t be used interchangeably.

Michael Leamy, Woodruff Endowed Professor of Mechanical Engineering, Georgia Institute of Technology • conversation
Oct. 28, 2024 ~6 min

Charging, not range, is becoming a top concern for electric car drivers

The issue isn’t just the number of chargers – it’s also the quality of drivers’ experiences with them.

Alan Jenn, Associate Professional Researcher in Transportation, University of California, Davis • conversation
Oct. 10, 2024 ~7 min


Los Angeles is in a 4-year sprint to deliver a car-free 2028 Olympics

Can a city that’s synonymous with freeways and gridlock deliver a car-free Olympic Games? Los Angeles has picked up the torch.

Jay L. Zagorsky, Associate Professor of Markets, Public Policy and Law, Boston University • conversation
Aug. 21, 2024 ~8 min

What are roads made of? A pavement materials engineer explains the science behind the asphalt you drive on

Summer means road construction − but what kind of engineering goes into laying down pavement?

Mansour Solaimanian, Associate Research Professor, Larson Pennsylvania Transportation Institute, Penn State • conversation
May 10, 2024 ~7 min

How trains linked rival port cities along the US East Coast into a cultural and economic megalopolis

Love it or hate it, the ‘Acela Corridor’ has developed a widely recognized identity thanks to the trains that link it together.

David Alff, Associate Professor of English, University at Buffalo • conversation
April 24, 2024 ~9 min

Transporting hazardous materials across the country isn’t easy − that’s why there’s a host of regulations in place

Nobody wants to see an accident involving flammable, corrosive or radioactive material. But understanding the rules put in place to prevent these accidents isn’t easy.

Michael F. Gorman, Professor of Business Analytics and Operations Management, University of Dayton • conversation
April 22, 2024 ~7 min

EPA’s new auto emissions standard will speed the transition to cleaner cars, while also addressing consumer and industry concerns

The new rule isn’t a mandate for electric vehicles, but it will sharply increase their market share over the coming decade.

Alan Jenn, Associate Professional Researcher in Transportation, University of California, Davis • conversation
March 22, 2024 ~8 min

E-bike incentives are a costly way to cut carbon emissions, but they also promote health, equity and cleaner air

Many incentive programs promote e-bike use, but they aren’t necessarily targeting the right people for the right reasons.

Luke Jones, Professor of Economics, Valdosta State University • conversation
Feb. 27, 2024 ~9 min


Ever-larger cars and trucks are causing a safety crisis on US streets – here's how communities can fight back

Cars are getting bigger on US roads, and that’s increasing pedestrian and cyclist deaths. A transport scholar identifies community-level strategies for making streets safer.

Kevin J. Krizek, Professor of Environmental Design, University of Colorado Boulder • conversation
Aug. 2, 2023 ~9 min

To reclaim downtowns from traffic, require developers to offer strategies for cutting car use

US cities are starting to reform laws that required developers to provide minimum amounts of parking. But there’s more they can do to loosen the auto’s grip on downtowns.

Chris McCahill, Managing Director, State Smart Transportation Initiative, University of Wisconsin-Madison • conversation
July 26, 2023 ~9 min

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