Open Data

ONISR provides online detailed data up to 2022, extracted from the national road traffic accident database ; elements specific to the investigation have been removed to protect from the risk of persons identification.

For each injury accident (i.e. an accident occurring on a road open to public traffic, involving at least one vehicle and resulting in at least one victim requiring care), information describing the accident is entered by the police unit (police, gendarmerie, etc.) that intervened at the accident site. All these accident files constitute the national road traffic accident database known as "BAAC", administered by the French Road Safety Observatory (ONISR).

Since 5 December 2011, a number of data from the national accident file have been available on, a website intended to receive and disseminate public data from the Government and other public organisations. ONISR provides detailed data extracted from BAAC.

Some fields relating to users and vehicles and their behaviour are not provided, as the disclosure of such data would infringe the protection of the privacy of easily identifiable persons or reveal the behaviour of such persons, when the disclosure of such behaviour could harm them (CADA opinion - 2 January 2012).

The database lists all road traffic accidents that occurred between 2005 and 2017 in France (including the 5 French overseas counties : Guadeloupe, French Guiana, Martinique, Reunion Island ; and Mayotte since 2012) and in the other overseas territories (Saint-Pierre-et-Miquelon, Saint-Barthélemy, Saint-Martin, Wallis and Futuna, French Polynesia and New Caledonia); available only from 2019 in the open data) , with a simplified description (plus a severity index). This includes all information available in BAAC re accident location as well as most vehicle information and casualty counts.

This database includes 1 176 873 accidents (1 136 221 for metropolitan France, 38 649 for the French overseas departments and 2 003 for the French overseas territories) and 2 009 267 vehicles involved in accidents (1 939 887 for metropolitan France, 66 224 for the French overseas departments and 3 156 for the French overseas territories).

This database is available as 4 .csv files (characteristics, locations, vehicles, users) per BAAC year, i.e. 17x4=68 files.

Warning : The data on the qualification of hospitalised injured persons since 2019 cannot be compared with previous years due to changes in the law enforcement data entry process. The "hospitalised injured person" indicator has not been labelled by the official statistics authority since 2019.

It should be remembered that a certain number of indicators derived from this database have been awarded a label by the official statistics authority (decree of 27 November 2019). View here to see the certified indicators.

The data tables are available on website :