Every time we stop at a red light, wait patiently for green, or slow down on yellow, we’re participating in a system that quietly keeps billions of people safe. But have you ever wondered who invented ...

New research shows that AI in cars might warrant a new, four-light traffic signal that is more efficient. Getty Images/iStockphoto See more of our coverage in your search results. Add The New York ...

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 ...

Australia’s first AI traffic-light trial could cut delays. It also raises hard questions about fairness, safety and who gets ...

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 ...

A lot of times, when we think of traffic lights, we think of green, yellow, and red. But in reality, it's not that simple — and it can start to get confusing when you come across lights you've never ...