Authorities on one hand and companies involved in the auto industry on the other struggled in the last decades to make traffic safer for those with eye problems, including color-blind people who can't ...

Researchers at North Carolina State University (NC State) are advocating for a significant change in traffic management by proposing the addition of a fourth color to traffic lights: white. This new ...

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, ...