Red and green traffic lights have been around since the 1800s, when British traffic officers used to rotate gas lamps that burned red and green to control the movement of mostly horse-drawn vehicles.

"This provided valuable insights for our city with 2,400 traffic signals. Both the Green Light and Transport for Greater Manchester teams brought expertise and ideas to the table to improve journeys ...

The big picture: Google is analyzing data from its maps to suggest how cities can adjust traffic light timing to optimize traffic flow and reduce emissions. The company claims it's already cutting ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. (WHTM) — We see traffic lights all the time.

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 ...

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Google’s Project Green Light has been implemented at a couple intersections along 15th Avenue Northwest in Seattle’s Ballard neighborhood. (GeekWire Photo / Kurt Schlosser) Next time you avoid sitting ...

ORLANDO, Fla. – Perhaps nothing is more frustrating for drivers than mistimed lights during their commute, and a new study suggests that artificial intelligence could fix this. Frank Chaput, a driver, ...

Audi is revving up its slick Traffic Light Information (TLI) system. Now Audi TLI can tell you the best speed to drive in order to hit a string of green traffic lights, without having to suddenly ...