If you think rush-hour traffic in downtown Salt Lake can be bad now, it was chaos 114 years ago when the automobile age began ...

Every time we stop at a red light, wait patiently for green, or slow down on yellow, we’re participating in a system that quietly keeps billions of people safe. But have you ever wondered who invented ...

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 ...

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 ...

Traffic lights are an integral part of maintaining order among vehicles, cyclists, and pedestrians. And while an agreement has been in place since the late 1960s standardizing intersection lights ...