Speed feedbackFrance
61. Speed feedback
Speed feedback is a traffic-safety system that measures an approaching vehicle's speed and displays it back to the driver. The display may show the measured speed together with a message, colour or symbol indicating whether the vehicle is travelling within the applicable speed limit.
Speed feedback displays are intended primarily to make drivers aware of their speed and encourage them to slow down when necessary. They normally serve a preventive or educational purpose rather than establishing a new speed limit.
Wikimedia.org • Julien Bertrand • CC0
What does a speed-feedback display show drivers in France?
A French speed-feedback display can show the approaching vehicle’s measured speed. When the permitted speed is exceeded, the prescribed display gives an alert, which may be accompanied by that speed or a danger warning. The reading is indicative: check your own speed and obey the applicable legal limit.
🔗 equipementsdelaroute.cerema.fr • Cerema current IISR part 9 consolidation
🔗 doc.cerema.fr • Cerema, radar pédagogique definition, permitted displays and no sanction role
Does the number on a speed-feedback board set the legal speed limit in France?
Normally no. A reading showing your measured speed is not itself a new regulatory limit. The limit comes from applicable laws and legally prescribed fixed or variable speed-limit signs; a separate enforceable speed sign must still be obeyed.
🔗 equipementsdelaroute.cerema.fr • Cerema current IISR part 9 consolidation
🔗 doc.cerema.fr • Cerema, radar pédagogique definition, permitted displays and no sanction role
Is every speed-feedback board an enforcement camera in France?
No. Many feedback signs are installed for education and speed awareness. Speed enforcement may occur separately or nearby, so do not assume there is no enforcement; observe the legal limit regardless of whether you see a camera.
🔗 equipementsdelaroute.cerema.fr • Cerema current IISR part 9 consolidation
🔗 doc.cerema.fr • Cerema, radar pédagogique definition, permitted displays and no sanction role

Traffic rules
France