Urban mobility problems demand clarity. Intersections remain the most common sites for crashes, congestion, and violations.

Raleigh tests an AI program to improve traffic light timing and safety, using real-time video data from cameras.

PINELLAS COUNTY, Fla. — If you see work being done on traffic lights around Pinellas County, it’s to make them stronger during storm season. Crews are working to convert the traffic lights on span ...