New research shows that AI in cars might warrant a new, four-light traffic signal that is more efficient. Getty Images/iStockphoto Surely this will complicate the game of red light, green light.

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, ...

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 ...

Some traffic lights have yellow borders while others don't. Here's why reflective frames matter and why they aren't on every signal.

While the universal traffic light design that the entire planet currently uses (still) does its job very well, there are experts who believe that this critical component of today’s traffic should be ...

At first glance, traffic lights are stunningly simple: green means go, red means stop, and yellow means it’s about to turn red. But like cars, phones, and just about everything else on this planet, ...

Richmond is replacing traffic lights with stop signs across the city, part of an effort to get rid of aging signals that ...

There are few things in this world that are more mildly infuriating than being stopped at a deserted intersection at a red light that just won't change. You have already read my article about ...