While driving I commonly see drivers stop well short of the marked stopping spot. This confuses me. Stopping short makes it harder for people to get queue and makes it so the sensor in the ground does not sense the car. This, I my opinion, makes the light take longer due to the fact the sensor has not been activated. I see this behavior at stop lights with and without red-light cameras. Sometimes the driver is half a car length short and other well over a car length.

This just baffles me. In some turning lanes there could be a case for other drivers cutting to short and possibly hitting the stationary car.