Traffic engineers are quietly working on a radical idea: adding a white signal to the familiar red, yellow, and green.

If you're comfortable with the present green, amber, and red traffic lights, be prepared to get uncomfortable. New research suggests that adding a white light will speed up traffic and improve safety ...

A “white light” added to traffic signals could enable self-driving vehicles to help control traffic flow—and let human drivers know what’s going on. In computational simulations, the new approach ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. Fully self-driving cars, despite the claims of some companies ...

(WHTM/NEXSTAR) – On many traffic signals found throughout the United States, there is a small light that is placed in between or off to the side of the traffic signal lights. Sometimes you see them ...

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, ...

Many cities are replacing their incandescent traffic lights with LEDs, despite the higher initial cost. Here's why that's actually a good idea.

Q: Do you know the backstory of the thin yellow border you see around many stoplights? It’s amazing how such a small border can make the stoplight pop out visually from the background. Whoever came up ...

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 ...