Traffic lights today are controlled by computers and other purpose-built systems, but what did people do before computers ...

A viral claim about a new white traffic light for self-driving cars is based on research from North Carolina State University. While simulations suggest it could improve traffic flow, no transport ...

An Austin air traffic controller successfully campaigned for a protected left turn signal at a busy intersection near the airport, making the area safer for drivers.

University of Michigan researchers have worked with General Motors in Oakland County on better traffic signal timing.