Road safety

Cover of Australian National Risk Assessment Model
Australian National Risk Assessment Model
  • Publication no: AP-R451-14
  • ISBN: 978-1-925037-63-0
  • Published: 11 April 2014

The Australian National Risk Assessment Model (ANRAM) helps road agencies identify fatal and serious injury (severe) crash risk across all parts of the road network. ANRAM helps road agencies manage this risk through development of treatment programs aimed at reducing fatal and serious injury crashes. This report documents the development of ANRAM.

ANRAM provides a mechanism for the identification, measurement and reporting of fatal and serious injury crash risk based on road infrastructure, speed and traffic flow, and on fatal and serious crash history. It then enables scoping and prioritising of proactive investment options to address the highest risk road sections on the Australian road network. Guidance is also provided for implementation of ANRAM by jurisdictions at strategic and practical levels.

The ANRAM system provides road agencies in Australia with a tool to implement a nationally consistent risk-based road assessment program to support the objectives of both SCOTI and the National Road Safety Strategy. It allows jurisdictions to prioritise and develop targeted safety upgrade works for high-risk road sections, which reflect their local conditions and resources.

As at April 2014 the ANRAM toolkit is available for trail by Australian state, territory and local road agencies via ARRB.

  • 1. Introduction
    • 1.1. Aims and Objectives
    • 1.2. Background
      • 1.2.1. Terminology
      • 1.2.2. Need for ANRAM
    • 1.3. Project Structure and Key Findings
    • 1.4. Project Outputs
  • 2. Methodology
  • 3. ANRAM Development and Structure
    • 3.1. ANRAM Objectives
    • 3.2. Role and Value of ANRAM for Jurisdictions
    • 3.3. Building ANRAM Consensus
    • 3.4. ANRAM and AusRAP Convergence
    • 3.5. The ANRAM System
      • 3.5.1. Format and Structure
      • 3.5.2. Risk Assessment Module (RAM)
      • 3.5.3. Crash Prediction Module (CPM)
      • 3.5.4. Crash Validation Module (CVM)
      • 3.5.5. Summary of the Model
      • 3.5.6. ANRAM Toolkit
      • 3.5.7. ANRAM Calibration
      • 3.5.8. Model Outputs and Applications
  • 4. ANRAM Trial and Evaluation
    • 4.1. Trial Design
    • 4.2. Calibration Factors
    • 4.3. Other Trial Results
    • 4.4. Sources of Error
  • 5. ANRAM Implementation Guide
    • 5.1. Background
    • 5.2. Adoption of ANRAM into Jurisdictional Road Safety Policy
      • 5.2.1. Benefits of Uniform National Approach to Risk Assessment
      • 5.2.2. Local Flexibility
      • 5.2.3. Removing Barriers to Safety
      • 5.2.4. Strategic Approach to Safe System Implementation Using ANRAM (Example)
      • 5.2.5. Using ANRAM in Road Safety Programs
      • 5.2.6. Response to the National Road Safety Strategy and SCOTI
    • 5.3. Practical Implementation
      • 5.3.1. System Requirements
      • 5.3.2. Application
      • 5.3.3. Planning and Preparation
      • 5.3.4. iRAP v3 Input Data Coding
      • 5.3.5. Road Sections
      • 5.3.6. Importing Data
      • 5.3.7. Amending or Adding New Data
      • 5.3.8. Clearing Data
      • 5.3.9. Exporting Data
      • 5.3.10. ANRAM Toolkit
      • 5.3.11. Application of ANRAM Outputs
      • 5.3.12. ANRAM Recalibration
      • 5.3.13. Known Issues
  • 6. Conclusions
  • References
  • Appendix A Project Structure and Milestones
  • Appendix B Road Attributes and Risk Factors
  • Appendix C ANRAM Safety Performance Functions
  • Appendix D RUM/DCA Codes and ANRAM Crash Types
  • Appendix E Crash Costs in Australia
  • Glossary