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Commenter buzaw0nk noted last month that the nation's first speed cameras had gone up on Arizona's Loop 101 highway in Scottsdale. The early reports are in, and authorities say that motorists have noted less weaving in and out of traffic, as well as reduced speeds. The program's currently a nine-month trial, but assume that we haven't seen the last of these beasts on the roadside, considering the cameras have flashed 15,000 motorists in two weeks. [UPDATE: We're dumb. DC beat Arizona to the speed-camera punch, and we even wrote about it. Thanks, Mike.]

Loop cameras slowing cars, official says [Arizona Republic]

Chastise, Don't Punish: Brits Say Signs Reduce Speeds Better than Cameras [Internal]