Threatened with removal, they have just been saved by a decision of the Council of State issued at the end of March 2025. A relief for some municipalities, but not without consequences for the future.
As a reminder, in 1994, a decree set precise rules for the installation of speed bumps: maximum height of 10 cm, suitable length, prohibition on busy roads, and the need for appropriate signage. Despite this legal framework, installations have multiplied without always respecting these standards.
Two associations, For a Mobility Sereine et Durable (PUMSD) and the Drivers' Defense League (LDC) had taken legal action. According to their estimates, approximately 90% of French speed bumps are non-compliant, representing nearly 400,000 disputed devices. In support of their action, several studies showed that poorly designed speed bumps could damage vehicles, hinder emergency services, and even increase the risk of accidents.
The decision of the Council of State
Referred to on this matter, the Council of State issued its decision on March 27, 2025 (decision number 495.623). While recognizing that many speed bumps were not up to standard, the court refused to order their destruction. The main reason is based on a principle of public law: a public structure, even if irregularly installed, may only be demolished in exceptional cases.
In other words, despite their non-compliance, the speed bumps in place are considered public structures benefiting from legal protection. Only a proven threat to safety could have justified their immediate demolition, which the Council did not generally accept.
While the majority Although speed bumps are now being avoided for dismantling, the situation is not completely fixed. The Council of State has reiterated that local authorities must strictly comply with standards in the event of new developments. They also remain exposed to potential liability in the event of accidents caused by non-compliant devices.
As for driver protection associations, they are already announcing their intention to closely monitor future installations and to increase targeted recourse, particularly in the event of a disaster.
No major demolition work, then, but a clear warning: the era of the "wild" speed bump is over.
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