Comment Re:Why bother? (Score 1) 364
Ground sensors that are used where I am completely negate being able to time lights. The main problem with them, is that they don't use the cameras at most intersections to bias the signals to the flow of traffic. You will have 1 car on a side street stop 20 cars and trucks, when the side car could wait. Not only that, the sensors will stop traffic when there is no one on the side street, because they did a legal right turn on red. That has to waste thousands of gallons of fuel each day, just in my city.