> And another reason people don't like them is a record of pairing them with abnormally short yellow lights.
This. I heard an anecdote, which I can't prove but I'm sure has happened dozens of times in various places, about a guy who got a red-light ticket and suspected the yellow light was too short. He went back to that intersection and filmed the yellow lights, proving that they were shorter than the mandated-by-law 3 seconds. (I think state law, I imagine different states and countries might have different minima). He took that recording to court and got not only his ticket thrown out, but (according to the version I heard) all red-light tickets produced at that particular intersection.
This. I heard an anecdote, which I can't prove but I'm sure has happened dozens of times in various places, about a guy who got a red-light ticket and suspected the yellow light was too short. He went back to that intersection and filmed the yellow lights, proving that they were shorter than the mandated-by-law 3 seconds. (I think state law, I imagine different states and countries might have different minima). He took that recording to court and got not only his ticket thrown out, but (according to the version I heard) all red-light tickets produced at that particular intersection.