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America’s infrastructure is underachieving

Mar 9, 2017
The grade: D+. But there were a few categories improved upon.
Heavy traffic moves southbound and northbound along I-95 in Quantico, Virginia.
Win McNamee/Getty Images

There might be a way to eliminate traffic jams

Aug 26, 2016
Just in time for the holiday weekend.
Traffic jams up entering the 110 Freeway in downtown Los Angeles. Since 1982, the average time spent sitting in traffic per year in the U.S. — 36 hours — has more than tripled.
Photo by David McNew/Newsmakers

Mexico City tells residents to park it

Apr 19, 2016
After a pollution emergency, Mexico's capital city is taking drastic measures.
View of Mexico City blanketed by smog on March 18, 2016. Mexican officials lifted a four-day air pollution alert last month in the nation's densely-populated capital after ozone levels dropped, according to them, to acceptable levels. 

A driver's defense of self-driving cars

Sep 15, 2015
Imagine a world where we subscribe to on-demand rides from autonomous vehicles.

More drivers, more crashes, higher rates

Sep 9, 2015
Lower unemployment and gas prices means more people are on the road.

The high cost of gridlock

Jul 13, 2015
In 2013, traffic jams in the U.S. cost consumers an estimated $124 billion.

Researchers want to predict future traffic

Apr 6, 2015
Microsoft is lending cloud computing power to traffic prediction research.

For public good, not for profit.

The tricky practice of pricing parking

Mar 13, 2015
Cities are looking at variable rates as a way to raise money and control traffic

What if every travel day was as bad as Thanksgiving?

Dec 3, 2014
Congestion is mounting in the biggest airports in the U.S.

Have red light cameras reached the end of the road?

Jul 25, 2014
Has the automated red light camera system failed to live up to its promise?