Early traffic lights had only red and green, which unsurprisingly made intersections rather chaotic. Who invented the yellow ...

As cars and trucks get smarter and more connected, the humble lights that have controlled the flow of traffic for more than a century could also be on the cusp of a major transformation. Researchers ...

If you’ve seen talk about a white traffic light or images of a signal with an unfamiliar fourth color, you’re not imagining it. With everything drivers already pay attention to at intersections, ...

In the U.S., a yellow light comes up only in between the transition from green to red. That's not the case in several parts ...

According to the city of Bellevue, a flashing yellow light is just as safe as a normal traffic signal. A new Bellevue study says, while left turn collisions at intersections with traffic lights have ...

COLUMBUS, Ohio (WCMH) — Several new traffic signals with flashing yellow arrows are being installed in west Columbus — something officials hope will reduce the number of left-turn crashes. Ten new ...

This is where traffic-light countdown timers help. They are digital displays that show the number of seconds remaining before ...

ANN ARBOR, Mich — As cars and trucks get smarter and more connected, the humble lights that have controlled the flow of traffic for more than a century could also be on the cusp of a major ...

The Vincent J. M. Di Maio Forensic Science Center, which is also known as the Bexar County Medical Examiner's Office, is located on the Northwest Side of San Antonio. As cars and trucks get smarter ...