P2P/Average Speed Safety Cameras
Location: Forrest Hwy North and South bound between Lake Clifton and Binningup.
For more information about P2P/Average Speed Cameras, please visit the Road Safety Commission website.
Red-light/speed cameras - how they work
The red-light/speed cameras are located at traffic light controlled intersections and have a two-fold purpose - they photograph motorists who contravene red traffic lights and also detect motorists speeding through the intersection at any phase of the lights. The system captures information such as date, time, location, and lane at the same time.
Speed is detected using in-road sensors and or tracking radar. Road sensors are at a fixed distance apart and measure the time it takes a vehicle to travel between each sensor. For the tracking radar method, the date of both radar sensors is compared after an incident is recorded. If the record shows that a vehicle's speed is greater than the posted speed limit, a photograph and video of the vehicle is taken. Red-light incidents are triggered when a vehicle is detected moving over the looped sensor or wired detection of light phases. Once the light phase has changed to red, the video is used to confirm the vehicle continued through the intersection.
The captured images and video are sent electronically to the infringement processing system within minutes of the incident occurring.
Mobile and fixed site speed cameras
Mobile and fixed site speed cameras use laser technology to track and detect vehicle speed. They are operated on a tripod, from a fixed position in a vehicle or from a fixed road-side cabinet. They are able to track multiple vehicles across different lanes simultaneously. Where vehicles are identified that exceed the speed limit a picture is taken and the speed data is recorded against it.