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 ...

Palm Beach County is implementing new traffic technology to reduce bus-caused congestion on U.S. 1. Traffic lights will stay green longer for approaching buses and emergency vehicles. The $11.6 ...

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, ...