Calibrating Infrastructure Risk Rating (IRR) for Victorian Roads

IRR, developed in New Zealand, is a simplified-risk based road assessment methodology, based on fewer features than other road risk tools – requiring the input of only ten key road variables. Although early days, IRR seems to perform as well as more complicated, proprietary, road risk tools. Safe System Solutions Pty Ltd is undertaking a project that involves calibrating New Zealand’s IRR by correlating the IRR rating for Victorian roads against real world crashes so as to understand and quantify the strength of the relationship between crash rates and risk as assessed by IRR.

• Record URL:
  • http://acrs.org.au/publications/acrs-conference-papers/acrs-database/
• Supplemental Notes:
  • Extended abstract only
• Authors:
  • Chhanabhai, V
  • Beer, K
  • Johnson, M
• Conference:
  • Australasian Road Safety Conference, 2017, Perth, Western Australia, Australia
• Publication Date: 2017-10

Media Info

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

Subject/Index Terms

• TRT Terms: Crash analysis; Crash rates; Highway corridors; Highway engineering; Highways; Risk assessment
• Uncontrolled Terms: Safe systems (roads)
• Geographic Terms: New Zealand; Victoria
• ATRI Terms: Crash analysis; Crash rate; Risk assessment; Road engineering; Road inventory
• ITRD Terms: 6471: Analysis (math); 9020: Evaluation (assessment)
• Subject Areas: Highways; Safety and Human Factors; I82: Accidents and Transport Infrastructure;

Filing Info

• Accession Number: 01661756
• Record Type: Publication
• Source Agency: ARRB
• Files: ITRD, ATRI
• Created Date: Mar 1 2018 10:01AM