If you are in line to turn at a stop light, please keep up with the car in front of you. I understand there will be times when people aren't paying attention and don't see that traffic has started moving, but too many people just don't keep up with the car in front of them. When this happens, the traffic sensors think no more cars are coming and the light changes prematurely. This could really help some clogged intersections. Self-driven cars will solve so many of our traffic problems. I can't wait.