Road Safety Data
Road safety data about the circumstances of personal injury road collisions in Great Britain from 1979, the vehicles involved and the consequential casualties.
Applies to England, Scotland and Wales
Documents
Details
About this data
These files provide detailed road safety data about the circumstances of personal injury road collisions in Great Britain from 1979, the types of vehicles involved and the consequential casualties. The statistics relate only to personal injury collisions on public roads that are reported to the police, and subsequently recorded, using the STATS19 collision reporting form. This data contains all the non-sensitive fields that can be made public. Sensitive data fields, for example contributory factors data, can be requested by completing the sensitive data form and contacting the road safety statistics team at roadacc.stats@dft.gov.uk.
All the data variables are coded rather than containing textual strings. The lookup tables are available in the guidance and documentation section.
The introduction of injury based reporting of casualty severity for some police forces appears to have led to a change in the reported severity of road casualties. As a result the severity adjustment methodology has been used to adjust the reported severity of historic collisions to account for this change. In previous years the severity adjustment figures have been provided as separate files that users have to join to the main data, with the publication of the 2024 statistics these adjustment figures are now provided as part of the main data tables.
Latest year data
This section contains files with data for the most recently published year of data (2024).
Road Safety Data - Collisions - 2024 (CSV, 18.6MB)
Road Safety Data - Vehicles - 2024 (CSV, 19.2MB)
Road Safety Data - Casualties - 2024 (CSV, 9.8MB)
Complete dataset
This section contains files with all of the available data from 1979 to the latest published year (2024).
Road Safety Data - Collisions - 1979 - Latest Published Year (CSV, 1.4GB)
Road Safety Data - Vehicles - 1979 - Latest Published Year (CSV, 1.6GB)
Road Safety Data - Casualties - 1979 - Latest Published Year (CSV, 911MB)
Guidance and documentation
The data files are provided in a coded format rather than containing textual strings. The data guide below allows users to decode these values.
Road safety open data guide (XLSX, 60.5KB)
The introduction of injury based reporting of casualty severity for some police forces appears to have led to a change in the reported severity of road casualties. Users are recommended to review the severity adjustment guide for information on how the adjustment figures are calculated and the guide below for information on how these are applied in the open data:
Road safety open data - severity adjustment guidance (DOCX, 17.7KB)
The following guide contains details of historic changes to the specification of the data published on road casualties:
Understanding historical road safety data (DOCX, 20.1KB)
Revisions to the open data published in previous years can be found in:
Road Safety Data - Historical Revisions Data (CSV, 16.2KB)
Additional data files
This section contains additional data files containing the last 5 years of data, firstly as a single file and also as individual year files. These may be of use to users who need more that the latest year of data but do not wish to download the full dataset.
Latest 5 years of data
Road Safety Data - Collisions - last 5 years (CSV, 93.4MB)
Road Safety Data - Vehicles - last 5 years (CSV, 96.9MB)
Road Safety Data - Casualties - last 5 years (CSV, 49.5MB)
2023
Road Safety Data - Collisions - 2023 (CSV, 19.2MB)
Road Safety Data - Vehicles - 2023 (CSV, 19.9MB)
Road Safety Data - Casualties - 2023 (CSV, 10.2MB)
2022
Road Safety Data - Collisions - 2022 (CSV, 19.6MB)
Road Safety Data - Vehicles - 2022 (CSV, 20.3MB)
Road Safety Data - Casualties - 2022 (CSV, 10.5MB)
2021
Road Safety Data - Collisions - 2021 (CSV, 18.7MB)
Road Safety Data - Vehicles - 2021 (CSV, 19.5MB)
Road Safety Data - Casualties - 2021 (CSV, 10.0MB)
2020
Road Safety Data - Collisions - 2020 (CSV, 17.0MB)
Road Safety Data - Vehicles - 2020 (CSV, 17.5MB)
Road Safety Data - Casualties - 2020 (CSV, 9.0MB)
Additional information
STATS19 R package developed independently of DfT, offering an alternative way to access this data for those familiar with the R language.
Final annual data is released annually in late September following the publication of the annual reported road casualties Great Britain statistical publication. In addition, unvalidated provisional mid-year data (covering January to June) is released at the end November, to provide more up to date information.
Except for the severity adjustments, data are not routinely revised those occasionally minor amendments to previous years can be made. Details of recent revisions are available, together with a request for any feedback on the approach to revising the data.
Contact us
Road safety statistics
Email roadacc.stats@dft.gov.uk