The five cameras are located in state parks such as Franklin Canyon Park and Temescal Gateway Park.The operator, Redflex Traffic Systems Inc., is paid per ticket. Automatic number plate recognition can be used for purposes unrelated to enforcement of traffic rules.Some number plate recognition systems can also be used from vehicles.
Entry and Exit cameras determine the length of stay and provide alerts for unregistered or vehicles of concern via onscreen, email or SMS based alerts.
In vehicle-mounted systems, detection equipment and cameras can be mounted to the vehicle itself, or simply tripod mounted inside the vehicle and deployed out a window or door.
If the camera is fixed to the vehicle, the enforcement vehicle does not necessarily have to be stationary, and can be moved either with or against the flow of traffic.
After they complained formally, it was discovered they were stopped when their car was picked up by roadside ANPR CCTV cameras; it had been flagged in the Police National Computer database when they were seen near EDO MBM demonstrations in Brighton.
Critics Fixed camera systems can be housed in boxes, or mounted on poles beside the road, or attached to gantries over the road, or to overpasses or bridges.