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

(WHTM) — We see traffic lights all the time. Sometimes we get green lights, and sometimes we hit all the red lights on our commute to work. But, while sitting at a red light, have you ever wondered ...

State police answer motorists' questions in Ask a Trooper. This week's subject: Yellow lights, and what you're supposed to do. Have driving questions? Email [email protected] Lt. Rob Davis and ...

Have you ever noticed that the traffic light on a busy road with a higher speed limit stays yellow longer than a road with a slower speed limit? This length, known as the yellow change interval, is ...

The standard for judging whether to continue to proceed through an intersection with a yellow light is safety. Doug Dahl Courtesy to The Bellingham Herald Question: What is the standard for judging ...

Sitting at a red light can feel torturously long, but yellow lights often seem suspiciously short. It’s not all in your head: some yellow lights are too short. There is an ideal minimum length of a ...