Stoplights have three different and distinct colors -- red, amber, and green -- and those colors were chosen with specific ...

The blue lights on top of traffic signals, also known as confirmation lights, are designed to assist law enforcement detect drivers who run red lights.

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. You may not know it, but they play a ...

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 ...

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. You may not know it, but they play a cr… ...

If you've ever wondered how traffic lights work and how they can detect your car, you've probably also been curious about those small blue lights mounted above the signals themselves. These blue ...