The bad old days of gas lines in the 1970s and shortages led to the creation of fuel economy rules.
The Trump administration's move to freeze fuel economy standards reflects a sea change in American energy policy first born during an era of oil shortages and environmental crises.
California and the Trump administration are going different directions on mileage standards.
AP Photo/Rich Pedroncelli
Law scholars from California unpack the legal questions raised by the Trump administration's plan to roll back mileage standards and revoke California's ability to set more stringent rules.
Top tips from transport academics: target the second, consider the first and ignore the third.
Friend or foe?
AP Photo/Richard Vogel
In many US cities, ride-hailing apps are luring riders away from public transit and increasing traffic congestion. But with the right rules, they could enhance public transit instead.
The tricky math behind your bus route.
Monkey Business Images/shutterstock.com
It's annoying when your bus route gets off schedule or when buses bunch together. Why has it taken engineers so long to fix the problem?
Autonomous drones have already been used to deliver medicines and other small freight items.
Supply-chain experts see reliable data, STEM education and smarter regulation as essential for Australia to succeed in an increasingly automated world under pressure to be environmentally sustainable.
Ant colonies direct traffic flows of millions of individuals along the best routes – army ants even manage inbound and outbound lanes – but how?
Insects aren't known for having big brains, and slime moulds and fungi don't have any. So how do they solve challenges that test the ingenuity of human transport engineers?
Citibike station in midtown Manhattan.
Dozens of US cities have launched bike-share programs in the past decade. There have been bumps – critics want wider access, and cities want bikes stored out of the way – but bike sharing is on a roll.
In the cockpit of an aircraft, the hierarchy between captain and co-pilot is strictly respected. At the risk, sometimes, of poor decisions being made.
Fuel economy and air pollution regulations have lowered pollution and pushed industry to innovate.
The Trump administration announced a plan to relax fuel economy standards, but well-designed regulations can drive clean car innovations that make U.S. industry globally competitive.
Where’s my bus?
Even in cities with good public transportation, some areas can be 'transit deserts,' where demand exceeds supply. Living in these zones makes it hard to access good jobs, health care and other services.
Buses are set to be replaced by private and autonomous vehicles – but it's not clear how society is going to deal with it.
Times Square traffic jam.
New York soon may charge a fee to drive into central Manhattan as a way of reducing traffic and raising funds for public transit. An urban scholar says this step is overdue in the United States.
Wages are low among hospitality workers, who are disproportionately female.
Women in minimum wage jobs earn 10% less than their male peers. Wages are systematically lower in jobs more commonly held by women.
Riders on San Francisco’s Muni light rail system.
Millions of Americans rely on public transit to get to school, work or stores, but many can't get the service they need. 'Uberizing' transit by offering more options on demand could fill the gaps.
A self-driving shuttle at Texas A&M.
Combining machine learning, artificial intelligence and autonomous vehicles could revolutionize how people with disabilities get around their communities.
Ride-hailing app drivers – partners or exploited labour?
Using technology and rhetoric, ride-hailing companies manage to dictate drivers while simultaneously creating the illusion of equal relation.
Is it safe to cross?
Duke Humans and Anatomy Lab
Pedestrians ensure their safety by making eye contact with human drivers. Autonomous cars will have to communicate with nearby people in other ways.
When is it too hot to fly?
Major airports around the world will see more frequent flight restrictions in the coming decades because of increasingly common hot temperatures.
How will we react when cars start driving themselves?
How might we, and our nation's roads and highways, need to change as autonomous vehicles become more ubiquitous? We know a lot of the answers, but not all of them.