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Fixed camera V Mobile camera
As a general rule, fixed cameras are used in locations where the greatest numbers of casualties occur. However, it is not always possible to install a fixed camera unit – for example if the road layout is not suitable, if there is no nearby electricity supply or if the camera cannot be maintained safely by camera operatives. In such circumstances it may be appropriate to introduce a mobile site.
Fixed (Gatso) cameras
The most common make of fixed camera is ‘Gatso’ – invented by former Dutch rally and racing driver Maurice Gatsonides. These cameras are painted yellow and are reflective so they can be easily identified. A radar beam detects the speed of a vehicle, which then activates the camera if the vehicle is exceeding the speed limit. When a camera is triggered it takes two pictures of the vehicle.
Fixed speed camera sites have secondary check marks painted on the road surface. The speed of the vehicle is confirmed by counting the number of marks the vehicle has passed over between the first and second photograph.
Mobile (Lastec) cameras
Enforcement is carried out from highly visible vans using Lastec mobile cameras. The portable cameras are directed out of the vans, and offending motorists are captured on video. The officers park the vans where they can be seen in order to deter people from exceeding the speed limit.
Red-Light cameras
These rear-facing cameras are located at junctions and are activated when a vehicle travels through the traffic signals while they are on red. Two photographs are taken.
Specs cameras
Specs cameras are the latest technology that the partnership are using to ensure the safety of Cheshire, Halton and Warrington road users. Working in pairs and located on motorways, a calculation is taken between two cameras which equates to an average speed over the specific distance measured.
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