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Collision and Casualty Data


Latest Casualty Overview



High Harm Routes 

We’ve worked with the Vision Zero South West Partnership to identify High Harm Routes. You can find the results for Devon County Council’s A and B roads on the map dashboard below. Each route segment is color-coded based on its collision performance score. Red routes represent the worst-performing fifth of all A and B road segments across Devon and Cornwall. To view collision statistics for a specific route segment, zoom in on the map and click on the desired route.

The route performance scoring includes a severity weighting for fatal and serious injury collisions. More on route scoring method here.

What We Do With Data

  • We fulfil our statutory obligation to investigate collisions as mandated by the Road Safety Act 1988, which requires local highway authorities to implement road safety measures. Our road casualty statistics reports, in a dashboard-style format, are a vital part of our efforts to analyse collision data collected by the Police, uncovering the details of where, when, who, and why accidents occur.
  • We gather road casualty data from Devon & Cornwall Police and clean the data according to Department for Transport (DfT) guidelines. More on collection/release of data.
  • We create detailed dashboard-style reports that focus on specific road user groups and geographical areas, including councillor area profiles.
  • We offer insights into routes and locations with higher collision rates, such as A & B road analysis displayed in the dashboard below. This information is crucial for shaping priorities, both within and outside the Road Safety team, including areas like Transport Planning (for the Local Transport Plan), Highways Maintenance, Highways Development Management, and Public Health.
  • We leverage collision data to create evidence-based education programs tailored for different road user groups, including younger and older drivers, motorcyclists, and business drivers. These programs are developed in collaboration with partner agencies within the Vision Zero South West Road Safety Partnership.

Partners in the Vision Zero South West Partnership

The partners include other local authorities in the Devon & Cornwall police area, Devon & Cornwall Police, Police and Crime Commissioner, Fire and Rescue services, National Highways and NHS.

Partners that form the Vision Zero Partnership. These include Cornwall Council, Plymouth City Council, Torbay Council, Devon County Council, Devon and Cornwall Police, Office of the Police and Crime Commissioner, Devon and Somerset Fire and Rescue Service, Cornwall fire and rescue service, cornwall air ambulance, Devon air ambulance, National Health Service providers, National Highways.

Data Publication Timescales

We release collision data a year at a time, usually in May the following year.

Monthly timeline of collision data publication. Between January and April collision records are received from the police and checked to ensure accuracy for Department of Transport publication. Between May and July collision and casualty statistics are published publicly. In October the Department for Transport publishes their final collision and casualty statistics.

These milestones are interlinked with the Department for Transport (DfT) timelines; it takes up to April/May time to fully collect, check and validate the data with the DfT. Our maps and dashboards are then updated around May time.

Useful links

We take accessibility seriously and have incorporated accessibility functionality to our power BI dashboard style reports to allow content to be as accessible as possible. If you find some of the information not accessible, need guidance or an alternative format email collisiondata@devon.gov.uk with details of any preferred format and the assistive technology you use.


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