The National Highway Traffic Safety Administration has decided that they do.
Rapid-bus routes, an elevated highway, and a combined transit-road tunnel are among the finalists.
The people and ideas reshaping urban life
Amsterdam never stood a chance.
Headquartered in a small depot beneath the Williamsburg Bridge, the crew is responsible for overseeing 6,000 miles of road.
The widest bridge in the world, the Vancouver-area Port Mann span, is failing its debut in a spectacular fashion.
Quality service isn't enough -- systems need to create an "emotional" draw, some experts argue.
A look at which major U.S. cities have the most fatal car crashes per capita.
This could be the last time you see the San Francisco — Oakland Bay Bridge not mired in godawful traffic.
Urban planner Jeff Speck chats with Cities about his latest book.
With an end-of-year expansion, it is now the world's longest subway system.
Some say it's a security measure — but others think it's a matter of money.
Though the city sees 15 million walking trips a day, the infrastructure is abysmal. But some developers are trying to change that.
The aging car-rental giant plans to acquire Zipcar for $500 million. Here's what that might mean for users.
A new analysis disputes the idea that cities need a strong central business district to draw commuters onto transit.
We'll take a cup of kindness yet, for Auld Lang Syne.
The percentage of accidents involving alcohol varies widely by city.
They received a proposal for a "no cost" barrier system at least a year ago — and haven't moved on it.