Before the advent of computers, traffic lights were a marvel of mechanical and electromechanical engineering, utilizing timers, relays, and human intervention to manage bustling city intersections.

Arizona is looking to become one of the first places in the country where cars, traffic lights, buses, emergency vehicles, ...

NASHVILLE, Tenn. (WSMV) - The Nashville Department of Transportation (NDOT) is rolling out the city’s first ever “Smart Signal” traffic lights at 36 intersections along Lebanon Pike. The new ...

SALT LAKE CITY — For anyone who's ever been frustrated waiting at a red light when no other cars are coming — this article is for you. Our KSL team has had its own frustration with lights that don't ...