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

Before the advent of computers, traffic lights were a marvel of mechanical and electromechanical engineering, utilizing ...

After a successful trial run of a system that allows devices on emergency vehicles to control traffic signals while on ...

A new study suggests a fourth, white traffic light could let self-driving cars manage intersections more efficiently ...

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

If you're comfortable with the present green, amber, and red traffic lights, be prepared to get uncomfortable. New research suggests that adding a white light will speed up traffic and improve safety ...

RICHMOND, Va. (WRIC) — The City of Richmond’s Department of Public Works has installed a new traffic signal device on South Belvidere Street at Rowe Street in support of the Vision Zero initiative. A ...

PLAINS TOWNSHIP, LUZERNE COUNTY (WBRE/WYOU)— A traffic signal has been the topic of local debate ever since it was installed four years ago. The problem now? That traffic light still has not been ...

MOBILE, Ala. (WKRG) — The frustrations of sitting at red lights for extended periods of time in Mobile will soon be resolved. This is through a partnership between the city of Mobile and ALDOT. “It’s ...

Q: What are the rules about crosswalks at intersections with signal lights? Many people think that if they are in a crosswalk and the light is green for the automobile, they can still cross. Please ...