The Denver Post reports the Chicago-based Traffic Safety Coalition has chapters across the country advocating for the cameras, which take pictures of vehicles that blow through red lights. The coalition says cameras have helped cut the number of crashes caused by failure to stop at red lights in several cities.
But not everyone is on board.
Republican Sen. Scott Renfroe of Greeley says "we don't have the data to prove cameras have increased safety." He tried unsuccessfully to introduce legislation this year that would have banned the cameras.
Other critics argue the cameras are used by cities merely to collect revenue from traffic tickets.
(Copyright 2012 The Associated Press. All rights reserved.)