A 2011 study by Insurance Institute for Highway Safety comparing cities with red light cameras to those without them found that in the 14 largest U.S. cities, the cameras reduced fatal red-light-running collisions by 24 percent. Click to enlarge. Image: IIHS
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https://dc.streetsblog.org/2013/05/16/theres-no-doubt-traffic-enforcement-cameras-save-lives/
[B’ Spokes: My contention is we give too much credence that traffic enforcement cameras are just a revenue scam and that’s why they are not that effective.]