Traffic lights are not as straightforward as you may think. For instance, Japan has blue traffic lights, and while it's common to see the lights arranged vertically, some U.S. states mount them ...

Transportation engineers at North Carolina State University have proposed that an additional color be added to existing traffic lights. This new color would be a white light, intended for the use of ...

Technological advances and the advent of self-driving cars are forcing researchers to rethink traffic signaling systems. An innovative idea is emerging: adding a white light to traditional traffic ...

Ah, the yellow light. You know, that signal that is supposed to let you know to slow down as you approach the intersection, but makes you speed up instead? You probably take it for granted, but ...