Audi technology helps drivers avoid red lights

Clever drivers can watch the pedestrian walk signals to guess when an intersection traffic light will change from red to green, but Audi drivers can use a new communications technology in large urban areas to know how fast to drive to catch green lights without needing to stop.

The technology, known as Green Light Optimized Speed Advisory, uses vehicle-to-infrastructure communication to recommend the ideal speed for drivers to “surf a green wave” and reduce the number of times they must stop for lights.