Virtual Traffic Lights

Guest: Ozan Tonguz, professor of electrical and computer engineering at Carnegie Mellon University I'm sure this has happened to you: you've arrived at an intersection to find yourself the only car, sitting there waiting impatiently for the red light to turn green, while not a single car passes in the opposite direction. Suppose, instead of waiting your turn at a light suspended over an intersection, the traffic lights was in your car, and the other cars on the road. And those cars communicated with each other. When multiple cars arrive at an intersection, the virtual traffic light system would display red or green arrows on your windshield, telling you when it's your time to drive through. Such virtual traffic lights would make roads safer and more efficient according to Ozan Tonguz, a professor of electrical and computer engineering at Carnegie Mellon University who developed the concept.