Innovative Estimation of Crash Reduction Factors

The crash reduction factor (CRF) for road safety treatments is the expected percentage change in crash rate after a treatment is installed. An innovative method was used to estimate CRFs by incorporating literature reviews, quantifying the quality of the study and the quality of the statistics cited, and disaggregating CRFs in terms of treatment, speed and type of crash. For treatments involving horizontal curve alignment, high reliability literature (reliability score greater than 20) was difficult to find. Nevertheless, the findings indicated that for crash types other than “head-on”, the CRFs in current use appeared to be too high.

Media Info

  • Pagination: 3p
  • Monograph Title: Proceedings of the 2017 Australasian Road Safety Conference, 10-12 October, Perth, Australia

Subject/Index Terms

Filing Info

  • Accession Number: 01661787
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ITRD, ATRI
  • Created Date: Mar 1 2018 10:04AM