Many cities are replacing their incandescent traffic lights with LEDs, despite the higher initial cost. Here's why that's ...

Even though we’re long past the invention of the car and the first appearance of traffic regulations, it’s interesting to know how it all began. To think that some 100-150 years ago, people considered ...

You might have seen traffic lights in Japan that are a little different to what you're used to. Instead of being red, amber, and green, the last light on the signal might be blue, or perhaps an ...

Ah, the yellow light. You know, that signal that is supposed to let you know to slow down as you approach the intersection, but makes you speed up instead? You probably take it for granted, but ...

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, ...