In California, yellow-light times were shortened to maximize the number of tickets issued, and "Lockheed Martin IMS, which operated the San Diego system, regularly scouted intersections in some cities based on high traffic volume, not locations that were most accident-prone. Documents revealed that officials sought locations with steep gradients and short yellow-light times," reported the New York Times
What you cite if my biggest problem with red light cameras. I have no problem with the cameras actually catching people running the redlights. I have no desire for myself or my family to be hurt or worse because of some Jackass who can't stop for a red light. But I do have problems with private companies operating the cameras since it does bring in the profit motive into law enforcement.