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

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

When traffic lights stay red or green for a little too long, the Regional Transportation Commission works to find out what’s ...

THIS IS IOWA’S NEWS LEADER. KCCI EIGHT NEWS AT SIX STARTS RIGHT NOW. CITY LEADERS SAY A SPECIAL TRAFFIC LIGHT EXPERIMENT IN DES MOINES IS MAKING INTERSECTIONS SAFER. KCCI SENIOR REPORTER TODD MAGEL IS ...