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.

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 ...

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 ...

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, ...

Traffic engineers are quietly working on a radical idea: adding a white signal to the familiar red, yellow, and green. Instead of signaling drivers directly, the extra light would tell humans when to ...

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, ...

NASHVILLE, Tenn. (WKRN) — After collecting data from more than 100 signals in the downtown area, Nashville Department of Transportation and Multimodal Infrastructure officials have started rolling out ...