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 ...

A fourth traffic-signal color is more than sci-fi clickbait. As reported by ECO News’ Laila A., researchers at North Carolina State University are proposing a new white light that activates when ...

If you're comfortable with the present green, amber, and red traffic lights, be prepared to get uncomfortable. New research suggests that adding a white light will speed up traffic and improve safety ...

There are three signals at a traffic light: red means stop, green means go, and yellow means that you have to slow done because the red light is about to appear. But how about if we have another light ...