Traffic lights might see a fourth signal as self-driving cars become more practical. Getty Images/iStockphoto The researcher’s latest plans differ from a 2020 model of a four-light intersection ...

The team first introduced the idea of a fourth light in 2020, but realized a centralized system with a traffic light receiving AV signals and calculating the best route caused processing delays.

Researchers propose fourth traffic signal light for hypothetical self-driving car future It's called 'white' for now, until a color that 'does not create confusion' is picked. Andrew Paul ...

Audi first brought the current-generation traffic light tech to its cars in 2016. At the time, the service was limited to just Portland, Oregon and Las Vegas.

In 2016, Audi collaborated with Traffic Technology Services to become the first car manufacturer to fully integrate Traffic Light Information and provide a countdown of how long a traffic light ...