Traffic lights have been with us since 1868, when the first gas-powered set was switched on in London. These lights used a semaphore system similar to those used by the railways of the day and ...

Close up of a traffic light with a bus priority light in a city - GrandRiverTransit/YouTube If you are in your car, driving through an intersection with traffic lights, you're accustomed to looking ...

You might think traffic light systems are fairly basic. After all, electric traffic signals first appeared all the way back in 1914. However, they have advanced significantly since their inception, ...

There was a time when most traffic lights worked by relying on timers. This isn't ideal, as anyone who's sat muttering at a stoplight in the middle of the night without any other cars on the road can ...

Transportation engineers at North Carolina State University have proposed that an additional color be added to existing traffic lights. This new color would be a white light, intended for the use of ...

When traffic lights stay red or green for a little too long, the Regional Transportation Commission works to find out what’s ...