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 ...

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 ...

It is hard not to recognize the famous red, yellow, and green traffic signals on roads throughout the globe. By 2025, traffic signals may have one of the biggest changes because one more color will be ...