The fixed camera system on the Geelong Road was activated in January 2006.
There are eight cameras at eight active locations along the Princes Freeway and Westgate Freeway between Melbourne and Geelong.
All cameras on the Geelong Road use an in-road sensor system, such as piezos, as the primary Speed Measurement Device (SMD). A secondary non-piezo mechanism is also used to measure speed.
When a camera detects an incident, readings received from two SMDs are compared – this is called Secondary speed verification. Using two different machines to record speed measurements ensures accuracy. If the readings are consistent, the incident is sent for verification.
Encrypted camera data is sent to two trained verification staff. They are required to independently review the data and must agree an incident has occurred. If both staff do not agree a third is asked to adjudicate.
All agreed incidents are then sent to the Traffic Camera Office at Victoria Police for final revision and authorisation, only then is a fine issued.
All cameras on the Geelong Road have quarterly and annual hardware and software maintenance carried out by a contracted traffic camera service provider. In addition to this, an independent company performs routine testing on Geelong Road cameras.
An independent testing officer also certifies Geelong Road cameras on an annual basis in accordance with the Road Safety (General) Regulations 2009. During certification, cameras are removed and replaced with newly certified devices. Upon successful completion of testing compliance certificates are issued for each camera.
The Hume Freeway point-to-point camera system has two cameras at 10 locations, creating four northbound and four southbound zones. The system calculates a vehicle's speed by measuring the time taken to travel between two locations.
Information on intersection cameras, including details on the technology, speed verification processes, and the testing, certification and maintenance regime. Intersection cameras include digital speed / red-light cameras and wet-film cameras.
The Peninsula Link camera system point-to-point camera system consists of six cameras, positioned at four separate locations along the 27 kilometre stretch of road between Carrum Downs and Mount Martha.