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

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 ...

Traffic lights have been with us since 1868, when the first gas-powered set was switched on in London. These lights used a semaphore system similar to those used by the railways of the day and ...

The concept of the traffic light actually dates all the way back to the 1860s, where gas-lit signals were placed on the posh streets that lined the Houses of Parliament in London. Of course, back then ...

Transportation engineers at North Carolina State University have proposed that an additional color be added to existing traffic lights. This new color would be a white light, intended for the use of ...

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, ...

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