The Effects of Seat Belt Legislation on Road Casualties

  • Published: Published: In Compulsory Seatbelt Wearing Report, Department of Transport, 1985
  • Authors: J Durbin and AC Harvey
  • Date Added: 01 Feb 2013
  • Last Update: 01 Feb 2013

Objectives:

To assess the statistical evidence of the effects of the introduction of the seat belt law on road casualties inGreat Britain.

Methodology:

Time series analysis using monthly casualty figures dating from January 1969 to December 1984.

Key Findings:

  • The authors found a 20% to 26% reduction in the number of drivers killed or seriously injured.

  • The number of driver deaths fell by 18%.There was a 2.9% rise in the number of rear seat occupants who were killed or seriously injured, however this was not statistically significant.

  • The authors estimated that the seat belt law saved the lives of 241 drivers in 1983 and 270 in 1984.

  • Similar estimates were made for front seat passengers, where an estimated 147 lives were saved in 1983 and 181 in 1984.

  • There was a 4.8% increase in the number of cyclists killed or seriously injured following the introduction of the law; however, this was not statistically significant.

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