More details are emerging about how an Uber self-driving car struck and killed a woman in Tempe, Arizona, raising red flags about the testing of autonomous vehicles on city streets.

Walking in Orlando is deadlier than in any other major city in the nation. But the city's new transportation director is a reformer.

A human was behind the wheel but was not driving when the collision occurred, according to Uber.

The city will increase the size of its bus fleet 16 percent, part of a plan to add service on existing routes, expand service to new routes, and prioritize buses with dedicated lanes.

It's an indictment of the approach to transportation planning that opts for pedestrian bridges instead of making streets safe for people to cross on foot

Local government ceded decisions about the project to private benefactors, subordinating public goals to their interests and preferences.

The full list of new TIGER grant awards looks a lot worse than the early announcements suggested.

Making bus service work well again isn't a huge, complicated undertaking.

Only 20 percent of the region's highways are in good condition. And yet the regional transportation agency is planning $4 billion in highway widenings.

Send us your nominations for the worst parking crater in an American city by March 15 to enter this year's tournament.

Low-income people shouldn't have to pay more per ride than people who can afford unlimited transit passes.

While infrastructure matters a great deal, not enough emphasis has been placed on other types of barriers facing women and girls.