Red and green traffic lights have been around since the 1800s, when British traffic officers used to rotate gas lamps that burned red and green to control the movement of mostly horse-drawn vehicles.

A surprising amount of technology might be making that red light hold you up. Here's how traffic lights detect (or don't ...

At first glance, European traffic lights look the same as the ones most American drivers are used to: red on top, amber in the middle, green on the bottom (unless you're in one of the few states where ...

Red-light cameras may be controversial, but -- according to a new study from the Insurance Institute for Highway Safety -- ...