You must have seen traffic lights while coming and going on the road. It plays an important role in maintaining order on the road and in ensuring the safety of the people. The three colors (Traffic ...

Talking Transportation Why traffic signals are red, yellow, green — and expensive The first traffic signals were not always the colors you see now. Here’s some history.

Instead of watching police officers giving hand signals at the often-busy intersections, they now had to obey traffic lights. The green, yellow and red flashers, now so familiar to us, made their ...

Running red lights kills more than 1,000 people every year in the U.S.—and during national “Stop on Red Week,” the American ...

The simple green-yellow-red light system, which has been standard in the United States since the 1910s, is a well-established tool of transportation safety. And yet, this straightforward ...

In addition to testing longer yellow lights, the study is also experimenting with the time between one direction's red light and the opposing direction's green light, known as the "red clearance ...

But eventually, the lights will use the traditional green/yellow/red lights seen on intersetion traffic signals to indicate when oncoming traffic can take its turn.