Engineers are exploring a future white phase on U.S. traffic lights, showing how autonomous vehicles could coordinate movement at intersections.

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. We see traffic lights all the time.

Traffic light countdown timers are common in Europe and Asia. The U.S. has resisted them for decades, and the reasons are ...

Phoenix is testing longer yellow traffic lights at a dozen intersections to see if it reduces red-light running and associated crashes. Red-light running has "become one of the most severe causes of ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. (WHTM) — We see traffic lights all the time.