Any driver should know that red traffic lights mean “stop” and green lights mean “go,” but whether yellow lights mean “slow down” or “go faster” may be up for debate. Yellow lights, the temporary ...

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.

The traffic light is a ubiquitous feature of modern life and is quite old — dating back to 1868 London, although that device was a modified railroad semaphore operated by a policeman, but it was the ...

Add Yahoo as a preferred source to see more of our stories on Google. It feels like it happens nearly every time you get behind the wheel. You’re approaching an intersection with a green light that ...