Originally Posted by Nords
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Funny how this is such a big deal in the U.S.* I was getting photo speeding tickets in Spain in the mid-1980s.
Photo radar for speeding is a whole 'nuther matter from photo red light. Photo radar works, can easily be set to establish some reasonable tolerance, and can be moved from place to place.
While I might not like it if I get a photo radar ticket, it's hard to argue that you weren't speeding. Here in Arizona they give you 10 mph over the limit with photo radar. If you don't want the ticket, don't go 11 mph over the limit. If it weren't the photo radar, it could have been a live officer. Once he pulled you over he might also site you for burned out tailight, no seatbelt, etc. The photo radar only gets you for speeding. And it is a cheaper way to inforce speed limits than hiring an army of cops. Plus it works. Put photo radar in place and traffic slows after one day.
But photo red light is very different. First, because it triggers false positives. When it works correctly it allows no tolerance of a law that is very precise -- more precise than any human being can be. After several years of photo red light systems all over Phoenix, no measureable change in the number of violations is seen.