Eddie Posted: 5/3/2013 7:43am PDT I have always said these were a scam. You can't win. powrwill Posted: 10/8/2013 3:13pm PDT My experience is that they do not enhance safety. You must speed up into the traffic intersection to avoid triggering the camera, rather than the safe driver approach of slowing down when approaching the intersection and a yellow light. Doesn't help that the cities reduced the timing of the yellow light so they can catch more offenders.