Engineers are exploring a future white phase on U.S. traffic lights, showing how autonomous vehicles could coordinate movement at intersections.

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

With more and more drivers taking to the roadways each year, commutes are busier than ever. Those drivers may not be as dedicated to obeying the laws of the road, either, making those trips a little ...