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

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, ...

The application has recently been caught testing support for traffic lights; the feature is still in a very limited testing stage ...

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 ...