Show almost anyone in the world a red, yellow and green light, and they’ll instantly associate the colorful trio with a traffic signal. But add another color to the mix, and many will be left in the ...

Across the United States, drivers are looking up at intersections and noticing a new, unfamiliar glow: small blue lights perched near traditional red, yellow and green signals. They are not decorative ...

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 ...

Ah, the yellow light. You know, that signal that is supposed to let you know to slow down as you approach the intersection, but makes you speed up instead? You probably take it for granted, but ...

One of the most important safety advancements to happen to the world of wheeled transport, is the traffic light. If you have a driver's license, you already know how it works; if the light is red, it ...

Q: What are the rules about crosswalks at intersections with signal lights? Many people think that if they are in a crosswalk and the light is green for the automobile, they can still cross. Please ...