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.

Harris County officials are worried that a change in how traffic signal funds are distributed might lengthen the response ...

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 ...

HONOLULU (KHON2) — Traffic along the Leeward Coast is notoriously bad and those who regularly drive along Farrington Highway know the traffic lights can sometimes add to the backlog. But city and ...

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, ...

FRESNO, Calif. (KFSN) -- Residents and local leaders say the impact of a new traffic signal in northwest Fresno will be life changing. The new traffic signal is expected to curb dangerous driving, ...

Raleigh tests an AI program to improve traffic light timing and safety, using real-time video data from cameras.

There's a new pedestrian crossing signal in town. Rather than relying on long-standing laws requiring motorists to stop for pedestrians in a crosswalk, the Pedestrian Hybrid Beacon uses yellow and red ...