When city officials decided to install new photo systems to catch red-light runners, they were naturally interested in busy roads such as Federal Boulevard and Colfax Avenue. But the city’s newest cameras won’t be on those notorious roads. The Colorado Department of Transportation rejected Denver’s requests to place cameras on either, a decision that frustrated city leaders. Instead, Denver is set to install cameras at three new locations: East 13th Avenue and Lincoln Street West Alameda Avenue and South Santa Fe Drive East 18th Avenue and Lincoln Street The Denver City Council will consider the expansion at a meeting next month. Here’s the problem This is the first expansion of Denver’s “red light” camera system since it was created in 2008. The system watches for people who run red lights, stop in the crosswalk and make illegal left turns, allowing the city to mail out citations for $40 to $80. The city can install the cameras on local streets, but it needs CDOT’s permission on state roads like Colfax and Federal — and CDOT doesn’t seem to agree with the city about where the cameras are most effective. “It’s a huge concern of ours, and it’s something we’ve talked to the mayor about,” said Skye Stuart, the city’s legislative director for Mayor Michael Hancock’s office.