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 ...

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 light just turned yellow and you've got a tough decision to make. Braking doesn't seem right – you're going too fast for a smooth stop. But continuing to drive also doesn't seem right – the light ...