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Intersection - speed and red-light

Information on intersection cameras

Digital speed/red-light cameras

Digital speed red-light (SRL) cameras have been operating at Victorian intersections since 2005. In 2009, the state embarked on a process to replace a number of ‘wet-film’ based red-light only cameras with digital speed red-light cameras

  • SRL cameras operate at 208 locations and have all undergone successful Site Acceptance Testing.
  • These cameras use a range of primary Speed Measurement Devices (SMD) and sensor systems including in-road piezo/inductive loop, optical fibre/inductive loop or inductive loop combinations. The technology used is determined by the location and configuration of the site. A secondary mechanism, which uses different technology to the main device, is also used to measure speed at each location.
  • When the camera detects an incident, readings are received from both the primary and secondary SMDs for comparison – this is called Secondary speed verification. Using two different mechanisms to record speed measurements ensures system accuracy. If the readings are consistent, the incident is sent for verification.
  • Encrypted camera data is sent via computer to two trained verification staff. They are required to independently review and verify the data and both must agree that 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 authorisation, only then is a fine issued.
  • These cameras are subject to quarterly and annual hardware and software maintenance that is carried out by contracted road safety camera service providers. In addition to this, independent testing service providers perform routine testing on digital speed red-light cameras.
  • An independent testing officer also certifies the digital speed red-light intersection cameras on an annual basis in accordance with the Road Safety (General) Regulations 2009. During the certification process, the cameras are removed and replaced with newly certified devices. Upon successful completion of testing, compliance certificates are issued for each camera.

Wet-film cameras

  • Some intersections with red-light only cameras still use original film processing equipment known as wet-film technology. There are 41 wet-film camera locations on our roads and 30 of these are in operation at any one time. Site locations are chosen based on crash history.
  • View the wet-film camera locations (Excel, 57.5KB)

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