How Do Speed Cameras Work?
Speed enforcement systems, also known as photo-radar, are triggered when a vehicle exceeding the speed limit by a predetermined amount is observed. Like red light cameras, speed cameras generate photographic evidence that gives the date, time and place, and vehicle speed.
Verification
The pictures taken by speed cameras must usually be viewed by a person before any infringement notice or ticket is issued to the driver, and judged to be satisfactory or not. This step is known as verification, and is a standard legal requirement in nearly all jurisdictions. Verifiers typically must check some or all of the following:
The pictures taken by speed cameras must usually be viewed by a person before any infringement notice or ticket is issued to the driver, and judged to be satisfactory or not. This step is known as verification, and is a standard legal requirement in nearly all jurisdictions. Verifiers typically must check some or all of the following:
- no sign of interference with the vehicle detector by objects other than the vehicle
- license plate readable according to a legal standard
- make and model of vehicle matches the recorded license plate number
- appearance of the driver in the images is adequate or that it matches the picture on the drivers license of the vehicle's registered owner
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