how and why are they controlled?

how and why are they controlled?



How and why are radars installed on the territory of France and what is the speed record of drivers checked? Here are the answers.

Although sometimes fiery, often the subject of speculation and the target of much hatred, radar is a controlled device, subject to the intended series of inspections. to ensure the accuracy of the measurements made and their correct performance throughout their operation.

Full warranty?

In any case, here it is Road safety French, which notes that the speedometers used by the police (perhaps also about devices on private radar cars) to control the movement of vehicles on the road, are it is subjected to a series of checks intended to ensure the accuracy of the measurements made. Here they are:

  • Write an inquiry or approval : includes verify the design of the equipment through laboratory testson track and road, to verify compliance with regulatory requirements and equipment
  • Initial verification : initial certification of new or repaired equipment includes, for each equipment that leaves the factory after being manufactured or repaired, in checking its correct operation and compliance with regulatory requirements, and in particular the maximum permissible error of +/- 3 km/h. or 3%, on the speedometer. In other words, the radar can be perfectly aligned even with a margin of error of + 3km/h/3%, the reason that of course the accepted error rate to get the speed recorded by the radar is at least 5 km/h/5%. It should be noted that the manufacturer can legally ensure pre- or post-repair inspection of the equipment he has manufactured, provided he has an approved quality assurance system for the manufacture and repair of his equipment. Approval certificates are renewed every three years and LNE after re-inspection, supported by annual follow-up audits
  • In-service control : it is a question here of the periodic verification of instruments in service, consisting of each piece of equipment being checked annually (or every two years for the first verification of new instruments) for its proper operation and compliance with regulatory requirements, and in particular the maximum permissible error of +/- 5 km/h or 5%on speed measurement, about fixed speed camera cabins.

Finally, installation verification includes, only for each specific radar, checking compliance with the installation conditions as specified in the regulation and especially the alignment of the radar antenna with respect to the road with an accuracy of +/-0.5°. It will be known that mobile roadside speed cameras (on-board mobile speed cameras, laser binoculars, etc.) are therefore not subject to this installation inspection.

Posted on 09/07/2022 Updated 09/07/2022