If a motorist is uncertain whether he can safely stop behind an intersection, is it safer for the motorist to proceed at speed through the intersection, possibly entering it a second after his light turns red (but a second before the opposing light turns green), or is it safer for the motorist to attempt to stop and possibly entering the intersection somewhat slowly a few seconds later (after the opposing light has turned green)? If the installers of traffic camera systems were interested in safety, they would configure the systems so that someone who entered between the time one light went red and the other light went green would delay the opposing green signal, and they would charge different fines for courtesy violations and safety violations. Have you ever heard of any camera system that did those things?