Microsoft is lending cloud computing power to traffic prediction research.

Cities are looking at variable rates as a way to raise money and control traffic

Congestion is mounting in the biggest airports in the U.S.

Has the automated red light camera system failed to live up to its promise?

White House warns 700,000 infrastructure jobs could be lost. What's that include?

20,000 tech workers commute daily from Santa Cruz to Silicon Valley

We know smoking affects health. How about traffic and unemployment?

As cities move from carpool lanes to toll lanes to ease highway congestion, one Atlanta group points to the uneven benefits of the plan.

Mega-commuters spend hours each day getting to and from work — are you one of them?

Americans wasted a total of $121 billion dollars, or an average of $818 each, by sitting in traffic in 2011 according to a new report from the Transportation Institute at Texas A&M. Which cities have it worst?