Studies & Reports
Basics
How Highways Rend Our Social Fabric — and the Challenge of Mending It
Roads are supposed to connect us. So why do so many highways tear our social networks apart?
March 11, 2025
Op-Ed: Equitable Transportation Research Makes America Great. So Why Is the Trump Admin Hollowing It Out?
Allowing political considerations to hollow out and cancel ongoing research is not only harmful to whatever domain the administration deems a threat, but it sets an alarming precedent for research at large, setting us on a path leading backward rather than forward.
February 12, 2025
How State DOTs Keep the Public In the Dark About How They Spend Our Transportation Dollars
State DOTs control hundreds of billions of dollars of our transportation funding. Where does it all go — and what do we actually get for it?
November 14, 2024
Six Reasons Why a Big Truck, SUV or Van is More Likely to Kill You in a Crash
We knew massive vehicles were killing us, but some of the reasons why might surprise you.
October 8, 2024
Carmageddon: Shift to Remote Work Led to Increase in Driving and Congestion Nationally…
Driving miles are higher today than they were before the pandemic, even though more Americans than ever still work from home.
September 16, 2024
Car Dependency is a Public Health Threat — But Americans are Too ‘Car Brained’ To See It
Whether you call it "windshield bias" or "motonormativity," Americans have a serious bias towards automobiles — and they're all too willing to accept car dependency's many downsides.
September 9, 2024
Report: Half of Uber, Lyft Trips Replace More Sustainable Options
\Researchers at UC Davis have found that more than half of ride-hail trips in California replace walking, biking, carpooling, and public transit trips, or are trips that otherwise wouldn't happen. They have ideas to make it more sustainable.
August 30, 2024
Report: Nothing Besides Congestion Pricing Raises Money, Reduces Traffic and Improves the Air
Central business district tolling remains the only policy idea that can do it all, a new report from the MTA's in-house rider advocacy organization shows.
August 8, 2024
Report: Cities are Undermining Sustainable Mobility with Fees and Taxes
Why is it so much more expensive to unlock a scooter than it is to just jump in the car?
June 20, 2024
Study: When Speed Limits Rise on Interstates, So Do Crash Hot Spots on Nearby Roads
Rising interstate speeds don't just make roads deadlier for people who drive on them — and local decision makers need to be prepared.
April 25, 2024
