At various accident-prone intersections in Chicago, the Transportation Department set up cameras to catch people running red lights, and as the Sun-Times reports, in just four months they've issued over 5,000 tickets to red-light runners. The cameras were installed in particularly troublesome intersections to attempt to bring down the number of accidents, and it appears to be working; the number of tickets issued at one intersection, 55th and Western, are down from 55 a day in November to 33 a day in February.