This data tool allows the user to customise and download data for
personal injury reported road collisions in Great Britain, based on data
reported by police using the STATS19 system which forms the basis of the
department’s published road
casualty statistics. Underlying data is available from data.gov.uk.
About the data
Details about the STATS19 data used in this dashboard, with links to
further information
The data in this tool is collected by police forces in Great Britain
using the STATS19 system of reporting, which covers collisions on the
the public highway involving at least one vehicle, and in which there is
at least one human casualty. This collection follows the specification
set out in the STATS20
document. A copy of the STATS19
form is also available.
Published statistics and data
STATS19 data is used to produce the annual statistics on road
casualties in Great Britain. Besides this tool, data can accessed in a
number of ways:
An interactive
dashboard which displays charts and maps and can be filtered for
different breakdowns
Spreadsheet data
tables which provide breakdowns of the data for key
variables
Open data for all non-sensitive variables available via data.gov.uk
This tool aims to provide access to detailed data which is more
flexible than the published data tables, and easier to access than the
raw open datasets. However, depending on the analysis required, another
of the above products may be more suitable.
Things you need to know
Data coverage
There is no obligation for people to report all personal injury
collisions to the police. These figures, therefore, do not represent the
full range of all collisions or casualties in Great Britain. All
collisions that were reported by the police and the occurred on a public
highway involving at least one motor vehicle, horse rider or pedal
cyclist, and where at least one person was injured are included in these
statistics.
These figures relate to Great Britain. Equivalent data for Northern
Ireland is published separately by the Police
Service for Northern Ireland.
Notes and definitions
A full list of the definitions used for the variables within this
tool can be found in our notes
and definitions documentation. The most important definitions are as
follows:
Collision: An incident involving personal injury
occurring on the public highway (including footways) in which at least
one road vehicle is involved and which becomes known to the police
within 30 days of its occurrence. Damage-only collisions, with no human
casualties or collisions on private roads or car parks are not included.
Note that the term ‘accident’ has previously been used within published
statistics.
Casualty: A person killed or injured in a collision.
Casualties are sub-divided into killed, seriously injured and slightly
injured. Severity is defined as follows:
Killed: Human casualties who sustained injuries
which caused death less than 30 days after the collision. Confirmed
suicides are excluded.
Serious and slight: For police forces using an
injury-based severity reporting system (IBRS) where the officer records
the most severe injury for the casualty, the injuries are automatically
converted to a severity level from ‘slight’ to ‘serious’. A list of the
injuries and severity allocated to them can be found severity
adjustments guide.
Severity adjustment
From 2016 onwards, a large number of police forces changed their
reporting systems to adopt injury-based reporting methods. This has
impacted on the reporting of injury severity. In previous years, serious
injuries may have been classified as slight injuries which impacts the
comparability of these figures over time. To allow for this, a
statistical method to adjust the reported injury severity was developed,
as described in the severity
adjustments guide. The adjusted figures can reliably be used to
compare trends over time across the country. They are based on what we
estimate the totals would be if all police forces were using
injury-based severity reporting systems.
The figures in published casualty statistics are based data after
this adjustment is applied (‘adjusted figures’) rather than than as
originally reported by police (‘unadjusted figures’). In this tool, the
user is able to select their preference for adjusted or unadjusted
figures. For most analyses, particularly where several years data are
selected, we would recommend using adjusted figures. Further details are
available in the severity adjustments guide.
Figures as reported by the police (before adjustment) are presented
alongside adjusted figures in the published
tables.
Further information
Refer to the following publications for more information on this data
or to download the complete dataset:
Detailed road safety data about the circumstances of personal injury
road collisions in Great Britain from 1979, collected via the STATS19
system.
how-to-use.knit
How to use the data tool
This tool enables the creation of custom data tabulations of data for
reported road collisions and casualties in Great Britain for years
between 2004 and 2022, based on police data reported via the STATS19
system, as outlined on the About
the data page. This page briefly outlines how the tool can be
used.
1. Decide whether to count casualties, collisions or
vehicles
The tool provides data which counts collisions, and separately
casualties or vehicles in those collisions. There are separate pages for
each of these, so as the first step select whichever count is required.
The basic operation of the tool is equivalent for either, although some
variables are only available when counting vehicles or casualties.
What type of data do you want to download?
Casualties
For example, the number of casualties by road user type, or by gender
and age
After selecting the required page (casualties, collisions or
vehicles), start by selecting your desired data options, such as
severity, geographic (collision) location, years, and additional
breakdowns from the ‘select data options’ menu on the left hand side of
the main panel. It is necessary to select severity, geography and years
(although on loading pre-specified values are chosen). Other filters and
breakdowns are optional.
Collision or casualty severity filtering
The tool allows the selection of casualties, collisions or vehicles
involved by severity. The user has the option of choosing ‘adjusted’ or
‘unadjusted’ data. For most analyses, we would recommend that ‘adjusted’
data are selected. For further information on severity adjustment, refer
to the About
the data page.
Geographic filtering
Upon opening the download tool, it will automatically pre-select
“Great Britain” as the geographic location, but you can filter the data
by country to obtain the Great Britain total, divided into England,
Scotland and Wales, or choose to filter by an alternative geography
(police force, local authority, parliamentary constituencies or
regions).
Other optional filtering
It is possible to apply additional filters to the data - currently
for road type, and the type of vehicles involved in collisions (note
that selecting this filter will restrict to collisions involving
particular vehicle types, rather than the vehicles themselves. For
example filtering for collisions involving pedal cycles will also
include any other vehicles these in collisions, for example any cars in
collisions with pedal cycles). For casualties, it is also possible to
filter by casualty (road user) type. It is not necessary to apply these
filters, as the default is that all the data will be selected.
Additional variables selection
You have the option of selecting additional variables to include as
breakdowns in the data download. These can be selected from the drop
down lists. There is no limit on the number of variables that can be
selected, although users should be careful that the downloaded file does
not become too large
Download format
You have the flexibility to download your data in either CSV or ODS
format. ODS files are Excel compatible and include a summary of any
filters applied, whereas CSV files should be machine readable but only
contain the data itself. Data downloads will appear in the ‘downloads’
folder of your computer, and will be named with the date of download. If
several files are downloaded within a short time, then they will appear
with numbers appended in order of download.
3. Confirm and create report
To download the data, click on the ‘confirm and create report’
button. In advance of doing this, the data can be previewed in the panel
on the right of the ‘select data options’ page. To see a preview,
selected ‘Preview Data Table’ from the top menu. If the data shown is
not as required, the selected data options can be changed.
Troubleshooting
Delay in updating
On loading or updating options, the tool can a while to update. A
wait of up to one minute can be expected; if longer than this then we
suggest refreshing the tool or trying again at a different time.
Grey screen
If the screen greys out (this can happen after the app has been left
without interaction for a while), then it can be refreshed using the
browser refresh button. The performance of the tool can suffer if there
are too many users attempting to access it at the same time, so it may
be easier to try again at a different time.
Downloaded data too large too open or does not load fully in
a spreadsheet
If the data downloaded is too large to open in a spreadsheet package,
then it should be possible to download in CSV format and read in to a
database. Alternatively, you can try reducing the number of breakdowns
included (for example, select fewer years).The tool is designed for
smaller bespoke tabulations. For analysis requiring large raw datasets,
it may be easier to use our open data files.
Contact
If problems are encountered which cannot be resoved, you can contact
the road safety statistics team by email to roadacc.stats@dft.gov.uk.
Reported road casualties in Great Britain: selected data
This table previews the selected data. To view the filters applied, click on the next tab ('Selected options').
To download the selected data, click the 'confirm and create report' button at the bottom of the 'select data options' menu on the left.
Loading...
Selected data options and filtering
This table summarises the options and filters selected from selection panel on the left.
To download the selected data, click the 'confirm and create report' button at the bottom.
Loading...
about_casualties.knit
Reported road casualties, Great Britain
Release date: 26 September 2024
Next release: September 2025
Data source: STATS19
Warning: Rows where the value is 0 are not
included.
While very few fatalities are not reported to the police it has long
been known that a considerable proportion of non-fatal casualties are
not known to the police, as hospital, survey and compensation claims
data all indicate a higher number of casualties than police accident
data would suggest.
The introduction of online reporting has impacted the volume and
quality of data received by the Department. It is believed that the
introduction of online reporting has introduced a different definition
for unknown values (for example, unknown to the public as opposed to
unknown by the police) that has not been subsequently populated by the
police.
Since 2016, changes in severity reporting systems for a large number
of police forces mean that serious injury figures, and to a lesser
extent slight injury, are not comparable with earlier years. Adjusted
figures are available for both accidents and casualties from 2004. More
details on severity adjustments and changes in reporting systems can be
found in the severity
adjustments background notes. For analysis of trends over time
across the country, using the adjusted series is recommended. They are
based on what we estimate the totals would be if all police forces were
using injury-based severity reporting systems.
Geographic areas:
The local authority breakdowns presented in the data are based on the
geography as it existed on the date of each respective year’s
publication date. Some local authorities have had their time series
impacted by geographic boundary changes, where local authorities have
been merged or split into new local authorities. In cases where the
geographical boundary does not change, but a new code is issued, the new
code has been used for the entire back series as the geographies are
comparable.
Reported road collisions in Great Britain: selected data
This table previews the selected data. To view the filters applied, click on the next tab ('Selected options').
To download the selected data, click the 'confirm and create report' button at the bottom of the 'select data options' menu on the left.
Loading...
Selected data options and filtering
This table summarises the options and filters selected from selection panel on the left.
To download the selected data, click the 'confirm and create report' button at the bottom.
Loading...
about_collisions.knit
Reported road collisions, Great Britain
Release date: 26 September 2024
Next release: September 2025
Data source: STATS19
Warning: Rows where the value is 0 are not
included.
While very few fatalities are not reported to the police it has long
been known that a considerable proportion of non-fatal casualties are
not known to the police, as hospital, survey and compensation claims
data all indicate a higher number of casualties than police accident
data would suggest.
The introduction of online reporting has impacted the volume and
quality of data received by the Department. It is believed that the
introduction of online reporting has introduced a different definition
for unknown values (for example, unknown to the public as opposed to
unknown by the police) that has not been subsequently populated by the
police.
Since 2016, changes in severity reporting systems for a large number
of police forces mean that serious injury figures, and to a lesser
extent slight injury, are not comparable with earlier years. Adjusted
figures are available for both accidents and casualties from 2004. More
details on severity adjustments and changes in reporting systems can be
found in the severity
adjustments background notes. For analysis of trends over time
across the country, using the adjusted series is recommended. They are
based on what we estimate the totals would be if all police forces were
using injury-based severity reporting systems.
Geographic areas:
The local authority breakdowns presented in the data are based on the
geography as it existed on the date of each respective year’s
publication date. Some local authorities have had their time series
impacted by geographic boundary changes, where local authorities have
been merged or split into new local authorities. In cases where the
geographical boundary does not change, but a new code is issued, the new
code has been used for the entire back series as the geographies are
comparable.
Vehicles involved in reported road collisions in Great Britain: selected data
This table previews the selected data. To view the filters applied, click on the next tab ('Selected options').
To download the selected data, click the 'confirm and create report' button at the bottom of the 'select data options' menu on the left.
Loading...
Selected data options and filtering
This table summarises the options and filters selected from selection panel on the left.
To download the selected data, click the 'confirm and create report' button at the bottom.
Loading...
about_vehicles.knit
Vehicles in reported road collisions, Great
Britain
Release date: 26 September 2024
Next release: September 2025
Data source: STATS19
Warning: Rows where the value is 0 are not
included.
While very few fatalities are not reported to the police it has long
been known that a considerable proportion of non-fatal casualties are
not known to the police, as hospital, survey and compensation claims
data all indicate a higher number of casualties than police accident
data would suggest.
The introduction of online reporting has impacted the volume and
quality of data received by the Department. It is believed that the
introduction of online reporting has introduced a different definition
for unknown values (for example, unknown to the public as opposed to
unknown by the police) that has not been subsequently populated by the
police.
Since 2016, changes in severity reporting systems for a large number
of police forces mean that serious injury figures, and to a lesser
extent slight injury, are not comparable with earlier years. Adjusted
figures are available for both accidents and casualties from 2004. More
details on severity adjustments and changes in reporting systems can be
found in the severity
adjustments background notes. For analysis of trends over time
across the country, using the adjusted series is recommended. They are
based on what we estimate the totals would be if all police forces were
using injury-based severity reporting systems.
Geographic areas:
The local authority breakdowns presented in the data are based on the
geography as it existed on the date of each respective year’s
publication date. Some local authorities have had their time series
impacted by geographic boundary changes, where local authorities have
been merged or split into new local authorities. In cases where the
geographical boundary does not change, but a new code is issued, the new
code has been used for the entire back series as the geographies are
comparable.