Red Light Cameras Don't Work
"By the end of 2002, more than 72 communities had installed cameras at intersections where motorists frequently run red lights. When a car runs the light, a camera snaps a picture of the license plate and a ticket is mailed to the car's owner... While statistics show the cameras can reduce red light running from 20 percent to more than 50 percent, the government found the devices can be inconsistent and should not be used exclusively. Nor should they be a community's first choice for improving safety."
Thanks to transport-policy listserv