How Photo Red Light Works

At red light camera intersections, there are metal sensors embedded in the pavement underneath the crosswalk (in the area of the gray bars on the diagram, below).  These sensors are not activated until the light turns red.  If a vehicle crosses the stop line after the light turns red, these sensors will detect the vehicle and trigger the camera(s).

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The cameras are set up with a slight delay, so that no pictures are taken until the light has been red for a short time.  While it may have appeared to you that the light was yellow when you were photographed, the system does not permit such a result.

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The Boulder Municipal Court has conducted extensive evidentiary hearings and determined that red-light camera technology is scientifically reliable and legally admissible in Boulder Municipal Court cases.  Click here for a copy of the Court's ruling(s) on the admissibility of photo red light evidence.

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No.  If the equipment malfunctions then no citations are generated. 

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Photo Red Light cameras are located at the following intersections:

28^th St. and Arapahoe Ave.
28^th St. and Canyon Blvd.
30^th St. and Arapahoe Ave.
27^th Way and Baseline Rd.
47^th St. and Valmont Rd.
Table Mesa Dr. and N. Foothills Hwy.

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Last Updated on Tuesday, 07 April 2009 09:14