Accidents are down between 10 and 30 percent at three of the city's busiest intersections, according to Naperville police.
The city has issued more than 18,000 tickets since installing the red-light cameras. That's an average of 49 tickets per day. Fines have totaled three quarters of $1 million.
Most of the violators were making right turns on red lights where it's not allowed.Only a fraction of the tickets have been overturned on appeal.