Illegal speed bumps in France

In France, about 450,000 speed bumps exist, and a large majority are installed in violation of current regulations. The association Pour une mobilité sereine et durable (PUMSD) has filed a criminal complaint against 152 mayors in the Var department, accusing them of unlawful installations.

Regulations and legal standards

The 1994 decree sets strict conditions for speed bumps, including that they must not be isolated and must be installed in specific areas, such as agglomerations and roads with a 30 km/h speed limit. The decree also prohibits their use on roads with more than 3,000 vehicles per day and on roads with steep gradients or curves.

Government's stance

The government argues that the Cerema technical guides, which are not legally binding, are merely recommendations and not a substitute for the 1994 decree. However, PUMSD claims that mayors rely on these guides because strict compliance with the decree would limit their ability to install speed bumps.

Filing of the criminal complaint

On March 12, 2026, PUMSD filed a complaint through its lawyer Rémy Josseaume with the Toulon prosecutor. The complaint targets 152 mayors in the Var department, accusing them of violating regulations. It highlights environmental, safety, and legal concerns related to the speed bumps.

Environmental impact of speed bumps

PUMSD claims that speed bumps contribute to increased atmospheric pollution, with a minimum 25% rise in fuel overconsumption and 27% more greenhouse gas emissions. It also reports a fivefold increase in fine particle emissions and significant noise pollution in nearby homes.

Impact on emergency services

The association estimates that speed bumps may cause delays for emergency vehicles, leading to avoidable deaths and economic losses. These delays are projected to cost 18.7 billion euros annually, considering avoidable mortality, disability, hospitalizations, and lost productivity.

Safety risks for cyclists and motorcyclists

PUMSD highlights the risks associated with speed bumps, particularly for cyclists and motorcyclists. It argues that Berlin cushions, a type of speed bump, may pose significant dangers and should no longer be used.

Uncertain future of speed bumps

The future of the contested speed bumps remains uncertain. The government states that each case must be considered individually and that road users can request demolition, regularization, or replacement. A new regulatory framework is expected to clarify the rules, while local authorities are encouraged to assess their existing infrastructure.

Judicial decisions and regulatory divergence

Recent judicial decisions have not resolved the debate over the legality of speed bumps. For instance, in July 2024, the Toulon administrative court ordered the removal of two speed bumps in Vinon-sur-Verdon. However, other courts have interpreted the 1994 decree differently, especially regarding cushions and plates. The government acknowledges these differences and is preparing a new regulatory framework covering the five main types of speed bumps.

Continuing legal and regulatory efforts

PUMSD plans to continue its legal and regulatory efforts by addressing the transport ministry with a letter requesting the application of the NFP98300 standard. The resolution of the issue will depend on both the evolution of regulations and the outcomes of ongoing legal cases.