Minimizing red light violations : how many cameras do we need for a given number of locations ?

Although red light cameras are widely used to discourage red light running, relatively little has been done on how to best deploy these cameras to maximize their efficacy. Due to their high price tags, many jurisdictions will purchase a relatively smaller number of cameras and rotate them among a larger number of camera-ready intersections. This article analyzed the red light violations data from the City of Edmonton and developed a simple method to determine the number of cameras needed to effectively enforce a given number of locations. (Author/publisher)