Managing speed

4/23/2020 2:57:26 PM

5. Road traffic collisions

In 2018 there were a total of 1,178 road collisions throughout Buckinghamshire.

The collisions resulted in:

  • 12 deaths
  • 145 people seriously injured
  • 1,021 slightly injured

Members of the public can get basic injury collision data free of charge from public websites, such as CrashMap or Collision Map.

If more detailed information is required then a charge will apply. 


How we collect the data

We receive collision data forms for all road traffic collisions which have resulted in personal injury and have been reported to the police (at the scene, online, or at a police station). 

The injuries resulting from road traffic collisions are categorised by severity:

  • killed or fatal (injuries leading to death less than 30 days after the collision)
  • serious injury (includes broken bones, internal injuries, burns, severe cuts)
  • slight injury (an injury of a minor character not classed as serious above)


Improving safety

The average value of prevention per injury collision is £90,424.

Reported Road Casualties Great Britain: 2017 Annual Report PDF, 376 pages, 4.86MB

Transport for Buckinghamshire identifies sites for casualty reduction schemes by reviewing reported injury collisions which have occurred within the last 5 years.

A search is carried out to identify:

  • roads and routes that have the highest rate per km of collisions resulting in users being Killed or seriously injured (KSI rates)
  • sites that have a history of 5 or more collisions (of any severity) within a 50m radius in the last 5 years (cluster sites)

The annual review usually identifies over 150 sites across Buckinghamshire. Transport for Buckinghamshire on average carry out remedial work at 10 sites per year.


Reporting a collision

If you've been involved in a road traffic collision, or think you might have witnessed an offence on the roads, you can report a road traffic accident (via


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Last updated: 23 April 2020

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