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Speed cameras

Both fixed location and mobile speed cameras are used in Victoria to keep roads safer.

Victoria’s road safety camera system includes;

Fixed road safety cameras

Fixed road safety cameras may detect one or more of the following offences:

The specific devices and technology used to detect speed and record offences varies depending on the camera system and location.

Road safety cameras have the capability to:

  • capture images of traffic offences
  • differentiate between vehicles on a multi-lane road
  • calculate the speed of a vehicle
  • electronically store encrypted images and incident information
  • use independent secondary speed verification technology to verify incidents
  • (where applicable) use other traffic data, for example variable speed limits, to detect offences.

Vehicle Detection Technology

In-road sensors

In-road sensors are used by some road safety camera systems to calculate a vehicle’s speed over a fixed distance.

There are specific types of sensors used to detect a vehicle’s presence and subsequent speed:

  • piezos (when a vehicle travels over the sensor, kinetic energy from the tyres is converted into electrical energy and the electrical impulses indicate the vehicle’s presence); or,
  • inductive loops (a series of electrified wire loops generate a magnetic field that detects the metal of a vehicle as it passes over).

Radar technology

Some fixed road safety cameras send a radar signal that bounces off the vehicle and back to the device.

Optical character recognition

This computer-based system reads a vehicle’s number plate. This technology is used predominantly in point-to-point camera systems.

Updated