Traffic engineers are quietly working on a radical idea: adding a white signal to the familiar red, yellow, and green.

Traffic lights have been with us since 1868, when the first gas-powered set was switched on in London. These lights used a semaphore system similar to those used by the railways of the day and ...

Today's traffic lights can be controlled by anything from standard traffic control computers to highly advanced AI-driven computer systems that are so "smart" they can predict what's going to happen ...

Modern traffic light technology isn't just a simple sequence of red, yellow, and green. It's a complex detection system designed to manage traffic flow based on real-time demand. The very first "smart ...

MURRYSVILLE, Pa. — Thousands of cars pass through the traffic lights on William Penn Highway or Route 22 every day. Recently, the age of the system has been showing. Murrysville Chief Administrator ...