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KANSAS CITY, Mo. — The city’s controversial red light cameras may not be as effective at stopping accidents at intersections as promised, according to a new study from the Kansas City Police Department.

According to the report in the Kansas City Star, there are 17 intersections in the city with the cameras, which are designed to catch people who run red lights. But according to the police department study, wrecks actually increased at more than half of the intersections being monitored.

The KCPD study agrees with a recent study out of Chicago which showed that the cameras don’t improve safety, but are instead an easy source of revenue. In Kansas City, wrecks at 11 of the 17 red light intersections actually increased by 18 percent.

At the intersection of 59th Street and Bruce R. Watkins Drive, wrecks actually doubled.

Since 2009, the city has issued nearly 200,000 red light tickets – and at $100 each, that could, in theory, mean $20 million in revenue for the city.

The Kansas City Council approved use of the cameras in 2008, and would like to broaden the use of the cameras. The camera’s effectiveness will be the topic of discussion at a City Council meeting on Tuesday.