Vikash Gayah: When you make a left turn, you have to cross oncoming traffic. When you have a green light, you need to wait ...

More than 60% of traffic collisions at intersections involve left turns. Some U.S. cities—including San Francisco, Salt Lake ...

But restricting left turns, in general, is more efficient. Roundabouts aren’t as efficient when it’s busier. The roundabout gets full, which can cause a gridlock, and no vehicle can move. Traditional ...

The modern traffic light, largely attributed to Garrett Morgan's 1923 invention, introduced a critical yellow warning light that improved public safety. Despite his significant impact on traffic ...

On her way home, a Wyoming woman was caught in traffic. Sounds like a normal story, but the cause of the traffic jam was anything but, at least for those not familiar with Yellowstone. A massive bison ...