Road safety open data
Source: gov.uk (2025-09-24)

Record level files providing data on personal injury road collisions in Great Britain from 1979, the vehicles involved and the consequential casualties.

About this data

These files provide detailed data for road collisions in Great Britain from 1979, and the vehicles and casualties involved. 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 system (https://www.gov.uk/guidance/road-accident-and-safety-statistics-guidance#data-collection).

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.

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 (https://www.gov.uk/guidance/road-accident-and-safety-statistics-guidance#data-protection-and-privacy) and contacting the road safety statistics team at xxx@xxx.xx (mailto:xxx@xxx.xx).

The STATS19 R package (https://cran.r-project.org/package=stats19) developed independently of DfT, offers an alternative way to access this data for those familiar with the R language.

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.

Open dataset data guide (https://assets.publishing.service.gov.uk/media/691c6440e39a085bda43eed6/dft-road-casualty-statistics-road-safety-open-dataset-data-guide-2024.xlsx) (MS Excel Spreadsheet, 70.7 KB)

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 (https://www.gov.uk/government/publications/guide-to-severity-adjustments-for-reported-road-casualty-statistics) for information on how the adjustment figures are calculated and the guide below for information on how these are applied in the open data. 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.

Road safety open data - severity adjustment guidance (https://assets.publishing.service.gov.uk/media/691c644021ef5aaa6543eef0/dft-road-casualty-statistics-severity-adjustment-figure-guidance.docx) (MS Word Document, 17.7 KB)

Changes and revisions

Except for the severity adjustments, data are not routinely revised though occasionally minor amendments to previous years can be made. The following guide contains details of historic changes to the specification of the data published on road casualties:

Understanding historical road safety data (https://assets.publishing.service.gov.uk/media/691c6440e39a085bda43eed7/Understanding-historical-road-safety-data.docx) (MS Word Document, 20.1 KB)

Revisions to the open data published in previous years can be found in:

Historical revisions data (https://assets.publishing.service.gov.uk/media/691c644021ef5aaa6543eef1/dft-road-casualty-statistics-historical-revisions-data.csv) (CSV, 16.2 KB)

Revisions: November 2025

These data files were first published in September 2025. It has since been discovered that these files contained an error in the junction_detail variable that caused collisions recorded as “other junction” to be incorrectly listed as “no data”. This has been corrected in the latest versions of these files (published November 2025).

Additionally an issue with the vehicle_location_restricted_lane variable has been identified resulting in some vehicles where the location was recorded by police as “lay-by or hard shoulder” to be incorrectly recoded as “no data” within the data for 2024. It is currently not possible to fix this in the data files, however a list of the majority of the affected vehicles can be found below, and the data files will be updated when possible.

Collisions with missing vehicle_location_restricted_lane (https://assets.publishing.service.gov.uk/media/6925a04a9fd433badebc315a/dft-road-casualty-statistics-vehicle_location_restricted_lane.csv) (CSV, 11.8 KB)

Latest data

Latest provisional data

This section contains files with provisional data for the first half of 2025. These are provisional estimates which have not been validated in detail and are subject to change following the end of year validation process. There may be some duplicates, as some casualties might have been logged twice or more, these will be deleted following end of year validation. Final data for 2025 is scheduled for release in September 2026.

Road Safety Data - Collisions - provisional 2025 (https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-collision-provisional-2025.csv) (CSV, 8.8MB)

Road Safety Data - Vehicles - provisional 2025 (https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-vehicle-provisional-2025.csv) (CSV, 8.6MB)

Road Safety Data - Casualties - provisional 2025 (https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-casualty-provisional-2025.csv) (CSV, 4.6MB)

Latest full year of final validated data

This section contains files with data for the most recently published full year of data (2024).

Road Safety Data - Collisions - 2024 (https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-collision-2024.csv) (CSV, 18.6MB)

Road Safety Data - Vehicles - 2024 (https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-vehicle-2024.csv) (CSV, 19.2MB)

Road Safety Data - Casualties - 2024 (https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-casualty-2024.csv) (CSV, 9.8MB)

Complete dataset

This section contains files with all of the available data from 1979 to the latest published year for which final validated data are available (2024).

Road Safety Data - Collisions - 1979 - Latest Published Year (https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-collision-1979-latest-published-year.csv) (CSV, 1.4GB)

Road Safety Data - Vehicles - 1979 - Latest Published Year (https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-vehicle-1979-latest-published-year.csv) (CSV, 1.6GB)

Road Safety Data - Casualties - 1979 - Latest Published Year (https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-casualty-1979-latest-published-year.csv) (CSV, 911MB)

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 (https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-collision-last-5-years.csv) (CSV, 93.4MB)

Road Safety Data - Vehicles - last 5 years (https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-vehicle-last-5-years.csv) (CSV, 96.9MB)

Road Safety Data - Casualties - last 5 years (https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-casualty-last-5-years.csv) (CSV, 49.5MB)

2023

Road Safety Data - Collisions - 2023 (https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-collision-2023.csv) (CSV, 19.2MB)

Road Safety Data - Vehicles - 2023 (https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-vehicle-2023.csv) (CSV, 19.9MB)

Road Safety Data - Casualties - 2023 (https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-casualty-2023.csv) (CSV, 10.2MB)

2022

Road Safety Data - Collisions - 2022 (https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-collision-2022.csv) (CSV, 19.6MB)

Road Safety Data - Vehicles - 2022 (https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-vehicle-2022.csv) (CSV, 20.3MB)

Road Safety Data - Casualties - 2022 (https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-casualty-2022.csv) (CSV, 10.5MB)

2021

Road Safety Data - Collisions - 2021 (https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-collision-2021.csv) (CSV, 18.7MB)

Road Safety Data - Vehicles - 2021 (https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-vehicle-2021.csv) (CSV, 19.5MB)

Road Safety Data - Casualties - 2021 (https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-casualty-2021.csv) (CSV, 10.0MB)

2020

Road Safety Data - Collisions - 2020 (https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-collision-2020.csv) (CSV, 17.0MB)

Road Safety Data - Vehicles - 2020 (https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-vehicle-2020.csv) (CSV, 17.5MB)

Road Safety Data - Casualties - 2020 (https://data.dft.gov.uk/road-accidents-safety-data/dft-road-casualty-statistics-casualty-2020.csv) (CSV, 9.0MB)

Contact us

Road safety statistics

Email xxx@xxx.xx (mailto:xxx@xxx.xx)