(WHTM/NEXSTAR) – On many traffic signals found throughout the United States, there is a small light that is placed in between or off to the side of the traffic signal lights. Sometimes you see them ...

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.

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Fully self-driving cars, despite the claims of some companies ...

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

In a tough year of budget cuts and management changes, Virginia's beleaguered Department of Transportation has found a bright spot. Workers are replacing thousands of green and red light bulbs in ...

Traffic lights help traffic flow by directing specific lanes to go and others to stop. Some are more complex and include signals for buses. But at the end of the day, they're devices with red, yellow, ...

This is an archived article and the information in the article may be outdated.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/NEXSTAR) – On many traffic signals ...