Cambridgeshire Road Traffic Collision Data

This page outlines how road traffic collision data can be obtained for Cambridgeshire:

• • • If you require collision data for Peterborough, please contact: Jenny.Wright@peterborough.gov.uk.
    • If you require collision data for Cambridgeshire, please read the information below.

Page Contents:
Where does the data come from?
How up to date is the data?
Which dataset should I use to prepare a Transport Assessment/Statement or Road Safety Audit?
How can I download the basic data (free)?
How can I request data that includes collision descriptions and road safety factors (charges apply)?

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Where does the data come from?

Road traffic collision records are provided to CCC by the police. The records are cleaned by CCC officers before being included in CCC’s road traffic collision database.  The dataset only includes collisions that meet the Department for Transport (DfT) STATS19 definition of a road traffic collision:

“Involves personal injury occurring on the public highway (including footways) in which at least one road vehicle or a vehicle in collision with a pedestrian is involved and which becomes known to the police within 30 days of its occurrence. Damage-only accidents, with no human casualties or accidents on private roads or car parks are not included.”

For further information about collision reporting and data collection, please refer to the Department for Transport STATS 19 and STATS 20 guidance.

How up to date is the data?

The road traffic collision data is available in two versions:

1. 1. 1. The local dataset (provisional) which is updated on a weekly basis. This dataset includes the most recent records and provides the latest picture which is subject to change. The local dataset is available to view using the CCC Road Safety Dashboard and can be downloaded here. For more detailed data, including collision descriptions and road safety factors, a bespoke request can be made. CCC officers can also view the data using the MapInfo Map Tree.
      2. The national dataset which is verified by DfT in summer/autumn each year for the previous calendar year. This dataset is more stable but doesn’t provide the latest picture due to being updated on an annual basis. DfT have currently verified data up to the end of 2024 and we expect the 2025 data to be verified in September 2026. The DfT-approved dataset is available to view on the DfT Road Safety Statistics webpage.

The key differences between the local and national datasets are summarised in our annual note:

• • • • National and Local Road Traffic Collision Statistics note (2023).
      • National and Local Road Traffic Collision Statistics note (2024).

Which dataset should I use to prepare a Transport Assessment, Transport Statement or Road Safety Audit?

Road safety professionals preparing Transport Assessments, Transport Statements and Road Safety Audits are advised to make a bespoke request for detailed collision data that includes collision descriptions and road safety factors.

Collision descriptions and road safety factors may not be shared publicly so these data fields are not included in the free collision data download so a bespoke request should be made following the collision data request instructions below (charges apply).

It is recommended that the local dataset is used for this purpose because the DfT’s national dataset does not cover the latest 9-20 months (depending on the time of year) whereas the local dataset is typically complete for all but the latest 2-3 months.

How can I access the local dataset?

If you require up to date collision data (i.e. the local dataset), there are different ways to access this data depending on your use case and the level of detail we are permitted to share:

 

1. Collision data download (free)

The local road traffic collision dataset (Cambridgeshire only) is available for immediate, free-of-charge download here.  This data is also available to view in our Road Safety Dashboard, which includes a range of maps, tables and charts.

Please note, the data that is publicly available to download:

• • • is currently provisional for 2025 and 2026 and is therefore subject to change.
    • does not include collision descriptions or contributory factors / road safety factors – we are only permitted to share this information with parties engaged in accident investigation, accident remedial works and/or safety engineering.

We have produced a guide to help you extract the collision data for a specific area of interest (e.g. a certain town or road). It also covers how to extract the data if you have been provided with a shapefile of an area of interest. Please see the guide here: Guide to extracting collision data in your area of interest.

If you are unable to download the data, please make a request to the CCC Policy & Insight team following the steps below.

2. Bespoke request for collision data (charges apply)

Road safety professionals preparing Transport Assessments, Transport Statements and Road Safety Audits can make a request using the Collision Request Tool. We are only permitted to share collision descriptions and contributory factors with parties engaged in accident investigation, accident remedial works and/or safety engineering. The provision of collision data is a chargeable service, unless you are working on behalf of GCP or CCC. An online payment link will be sent within 5 working days of submitting a request.

Deliverables

Requestors will receive an Excel workbook containing three primary data tabs. For a full list of data fields and field descriptions, please see our FAQ document.

Crashes Table
Contains one record per collision, including the collision description, Road Safety Factors (RSFs), driver demographics, overall collision severity, and other recorded collision attributes.

Vehicles Table
Contains one record per vehicle involved in a collision. Fields include vehicle type, location and direction of travel, and driver-related information such as drug and alcohol test results.

Casualties Table
Contains one record per casualty. Fields include casualty demographics, injury severity, and vehicle type.

Note: Some fields may be blank where the information was not recorded at the time of the collision.