How Methods and Levels of Policing Affect Road Casualty Rates

  • Published: TRL Report 637, 2005
  • Authors: M Elliott, J Broughton
  • Date Added: 04 Jul 2013
  • Last Update: 25 Oct 2016
  • Format: html


To assess the potential impact of the level of policing on reductions in casualties.


Literature review

Key Findings

  • Increasing the level of traffic policing reduces the number of crashes and traffic violations.

  • Increased visible policing makes a real difference.

  • Stopping 1 in 6 speeding offenders has a noticeable effect.

  • Studies of enforcement of drink-driving show that increasing policing tends to reduce accidents and casualties.