One of these can be "red light" or "of Columbia"
... 1. that there is an argument that we should not 
have cameras because its SAFER for drivers to run a red than to... [DOC] [TLE] Amid Debate Over D.C.'s Red-Light Cameras, Study Notes That ... [PAR] Sep 16, 2016 ... One of the signs that alerts motorists to an intersection with a red-light camera ...