Further analyses of accident data from the Cohort II study: When do drivers have their first accident and does it have an impact on their subsequent driving?

  • Published: TRL PPR426, 2009 , September
  • Authors: B Sexton and G Grayson
  • Date Added: 28 Mar 2013
  • Last Update: 12 Jan 2018
  • Format: html


The analysis of the Cohort II study posed two questions:

  • When do new drivers have their first accidents and what are the factors that influence this?

  • What effect accidents have on the attitudes and self-reported behaviours of the drivers who are involved in them?


The present study describes further analyses of the Cohort II study of learner and novice drivers.

Key Findings:

  • The results indicated that drivers who are accident involved do modify some of their driving behaviours and attitudes.

  • In particular, accident involved female drivers were aware that they were less decisive, less confident, made more errors and slips and were less aware in the period following an accident than they had been previously.

  • Male drivers who were accident involved reported being less confident after the accident than they had been before it.