to make traffic safer and more efficient. Eventually, the upgrades could do away entirely with the red, yellow and green lights of today, ceding control to driverless cars. Henry Liu, a civil ...

Imagine pulling up to a busy intersection and, instead of the usual trio of red, yellow, and green lights, you spot something ...

More Audi drivers can experience that rush from hitting a stretch of green traffic lights ... SEE ALSO: Audi's new cars will tell you how long you'll be stuck at that red light These areas expand ...