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

Add Yahoo as a preferred source to see more of our stories on Google. While we may be used to seeing cameras on top of traffic lights at major intersections, they're used for more than simply watching ...

You may have spotted bell-shaped cameras above intersections. But do you know what their actual purpose is? Here's everything ...

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.

Speed cameras seem to be everywhere, but do they actually change driver behavior? The real-world data behind them might surprise their critics.

Smart city initiatives are generating vast amounts of data from sensors, cameras, mobile devices, and digital service ...

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.