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 ...

MDOT spokesperson Anna Ehrgott said they typically use technology like radars and cameras to monitor day-to-day traffic. This ...

A new study says that the city's traffic lights change from green to red too abruptly. The standard time for a traffic light to remain yellow should be three seconds at a typical 30 mph intersection.

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, ...