You may have noticed some traffic lights with a white light that works independently of the others. They're not for normal ...

Drivers often overlook the small black boxes near intersections. But the technology inside them is cleverly changing how traffic lights react to the road.

Traffic lights help traffic flow by directing specific lanes to go and others to stop. Some are more complex and include signals for buses. But at the end of the day, they're devices with red, yellow, ...