Crash cost savings of state highway improvement projects

Research was undertaken to determine whether regional trends emerge for project crash cost savings for various types of State Highway improvements in distinct geographical areas. The post-construction crash cost savings were also compared with the predicted crash cost savings to determine the safety performance of the improvements on State Highways. 72 projects were investigated on the Otago / Southland and Waikato / Bay of Plenty State Highway networks, constructed over the last 5 to 15 years. The analysis indicated that different crash cost and rate trends emerge for different improvement types, terrain and traffic volume conditions. The safety performance of rural realignment projects has also clearly demonstrated that distinct regional crash cost and crash rate trends emerge. The results were compared to New Zealand and international literature. The research confirms that there is a case for undertaking a national investigation into regional crash costs, to assist project evaluators predicting crash cost savings for future projects. Promotion of a national database of regional crash rates and trends for projects on both State Highways and local roads, able to be sorted by project type and key parameters, is recommended. (a)

  • Authors:
    • MUIRSON, M
  • Publication Date: 2006-10


  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01054938
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ITRD, ATRI
  • Created Date: Aug 6 2007 2:05PM