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, ...

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 ...

A century ago, if you stopped at a traffic intersection you had just two options: stop and go. After witnessing a deadly crash between a horse-drawn carriage and a car, inventor Garrett Morgan thought ...

Garrett Morgan patented a traffic signal in 1923, but Detroit cop William Potts brought the three-light traffic signal to ...

Researchers are exploring ways to use features in modern cars, such as GPS, to make traffic safer and more efficient. This undated photo provided by the University of Michigan College of Engineering ...

Traffic lights are both common and controversial. From a city that only allowed green lights for drivers staying inside the speed limit, to the ethics of turning right on red, there are a ton of ways ...