If you’ve seen talk about a white traffic light or images of a signal with an unfamiliar fourth color, you’re not imagining it. With everything drivers already pay attention to at intersections, ...

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 ...

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 ...

They might be vertical, they might be horizontal, but otherwise, traffic lights have hardly changed in a hundred years. Red means stop, yellow means slow down, and green means go, a universal code ...

Some things are so ubiquitous that it's easy to forget they're designed for a reason. With more than 300,000 traffic lights set up across the United States, it's easy to take how they look for granted ...