Traffic lights might seem like they let cars stop or go randomly, but that's not always the case. Many of them use special sensors that detect vehicles.

Ever sat at a traffic light in the snow and wondered why your car wasn't triggering the lights? As it turns out, there's a very simple reason why it happens.

Inductive loop detectors were introduced in the early 1960s and have been one of the most widely used sensors for traffic management on freeways, arterials, and intersections. These sensors are used ...

Drivers often overlook the small black boxes near intersections. But the technology inside them is cleverly changing how ...