Every time we stop at a red light, wait patiently for green, or slow down on yellow, we’re participating in a system that quietly keeps billions of people safe. But have you ever wondered who invented ...

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

A new traffic signal system designed by University of Michigan researchers is being implemented in Oakland County, with plans to expand across Southeast Michigan. The system uses GPS data to track ...