Should a fourth light be added to traffic signals for autonomous cars?

What do you think of a fourth traffic light color being added to traffic signals for self-driving vehicles to help control traffic flow? Simulations are being conducted, and researchers are quickly realizing that a fourth traffic light could improve travel time through intersections and reduce fuel consumption. THE 5 BEST RADAR DETECTORS AND APPSHow would a fourth traffic light work? With the extra white light added, human drivers will be signaled to simply follow the car in front of them. These simulators are showing researchers that traffic improves with the presence of AVs and a fourth traffic light and that fuel consumption is much lower as there is much less stop-and-go movement.