Traffic lights today are controlled by computers and other purpose-built systems, but what did people do before computers were a thing? You may be surprised.

KNOX COUNTY, Tenn. — There are 91 traffic signals in Knox County with more on the way. Have you ever wondered how those lights know when to change and who makes sure they work? In part, it's up to ...

Traffic signal performance evaluation and its subsequent optimisation represent crucial components of modern urban mobility management. The field encompasses a diverse array of methodologies—from ...

If you've ever wondered how traffic lights work and how they can detect your car, you've probably also been curious about those small blue lights mounted above the signals themselves. These blue ...

The Washington State Department of Transportation (WSDOT) is working on a variety of projects this week across western Washington. Operations include paving, drainage work, electrical installations, ...

MOBILE, Ala. (WALA) - Starting on Monday morning, Aug. 11, the city of Mobile will begin work to remove traffic signals from select downtown intersections. Officials said the 26 traffic signals ...