The regional road safety observatory of Île-de-France has released its monthly road accident barometer for September 2026. This report, which aggregates data from the eight departmental observatories, highlights a notable rise in the number of fatalities across the region.
Compared to September 2025, the number of accidents and injured individuals also increased, though more moderately than the fatality count. The three ATB indicators (accidents, killed, injured) simultaneously rose in four departments: Hauts-de-Seine, Seine-et-Marne, Yvelines, and Essonne. No department saw a simultaneous decrease in all three indicators.
Since the beginning of 2026, these same indicators have been simultaneously increasing in four out of eight departments: Seine-Saint-Denis, Seine-et-Marne, Yvelines, and Val-d'Oise. No department has recorded a simultaneous decrease in these three metrics.
A total of 217 people lost their lives on the roads of Île-de-France since the start of 2026, representing a 7.4% increase compared to the same period in 2025. The breakdown of victims by user category shows that pedestrians account for 33% of fatalities, followed by users of light vehicles (30%), users of motorized two-wheelers (24%), cyclists (or powered personal mobility devices, 12%), and other users (1%).
