Asset management

Cover of Review of Variability in Skid Resistance Measurement and Data Management
Review of Variability in Skid Resistance Measurement and Data Management
  • Publication no: AP-R444-13
  • ISBN: 978-1-925037-12-8
  • Published: 28 June 2013

This report presents research outcomes of Austroads project AT1488: Improving skid resistance measurement, carried out from July 2009 to June 2012. The main goal of the project was to improve the understanding of variability associated with skid resistance testing and measurement, so a more effective management system can be devised balancing the practical limitations within the overall objective of providing safe road networks.

Various issues in relation to the variability in skid resistance measurements (e.g. correlation of skid resistance devices, seasonal variation in the measurement and how to best manage it) were comprehensively reviewed and discussed in the report. Important findings were drawn from the review and recommendations for local development, both on a national and local basis, were made accordingly.

  • 1. Introduction
    • 1.1. Project Background
    • 1.2. Aim and Scope of the Report
  • 2. Jurisdictional standardisation of sCRIM
    • 2.1. Background
    • 2.2. Review of RMS/VicRoads SCRIM Correlation Exercises
      • 2.2.1. Discussion of Correlation Exercises
    • 2.3. Review of Different SCRIM Data Processing/Reporting Methods
      • 2.3.1. Review of Jurisdictional SCRIM Data Reporting Methods
      • 2.3.2. SCRIM Data and Analysis
      • 2.3.3. Statistical Analysis
      • 2.3.4. Recommendations for Harmonisation of SCRIM Data Processing Methods
  • 3. Grip Tester and BPT Correlation Exercises
    • 3.1. Grip Tester Correlation Exercises (South Australia)
      • 3.1.1. The 2009 Exercise
      • 3.1.2. The 2011 Exercise
    • 3.2. BPT Correlation Exercise: Italian and British Devices
  • 4. Management of Seasonal variation
    • 4.1. Background and Terminology
    • 4.2. Seasonal Variation: Australian and New Zealand Cases
    • 4.3. Review of Jurisdictional Management Methods of Seasonal Variation
      • 4.3.1. New Zealand Transport Agency
      • 4.3.2. DPTI South Australia
      • 4.3.3. DIER Tasmania
      • 4.3.4. VicRoads Victoria
      • 4.3.5. TMR Queensland
      • 4.3.6. RMS New South Wales
      • 4.3.7. Main Roads Western Australia
    • 4.4. Discussion and Recommendations for Best Practice
  • 5. improvements in PAFV/PSV methods
    • 5.1. Background
    • 5.2. Review of PSV/PAFV Modification Trials
    • 5.3. PAFV Testing with Extended Polishing Cycles
  • 6. alternative polishing Test Methods
    • 6.1. Wehner–Schulze Machine
      • 6.1.1. Equipment Cost and Availability
    • 6.2. Micro–Deval Test
      • 6.2.1. Micro–Deval Test as a Polishing Resistance Tester
      • 6.2.2. Equipment Cost and Availability
    • 6.3. Auckland Pavement Polishing Device (APPD) and NCAT Three Wheel Polishing Device
      • 6.3.1. APPD in Relation to Skid Resistance
      • 6.3.2. Price and Availability
    • 6.4. Alternative Polishing Test Methods: Summary and Discussion
      • 6.4.1. Wehner–Schulze Machine
      • 6.4.2. Micro–Deval Tester
      • 6.4.3. Auckland Pavement Polishing Device (APPD)
      • 6.4.4. Comparison of the Methods
  • 7. New Zealand Method of assessing Aggregate skid resistance
  • 8. Use of GIs for skid resistance management
    • 8.1. Background
    • 8.2. Status of the use of GIS/GPS for Skid Resistance Data Management
      • 8.2.1. New Zealand Transport Agency
      • 8.2.2. DPTI South Australia
      • 8.2.3. DIER Tasmania
      • 8.2.4. RMS New South Wales
      • 8.2.5. VicRoads Victoria
      • 8.2.6. TMR Queensland
      • 8.2.7. Main Roads Western Australia
    • 8.3. Issues Involved in the use of GIS/GPS
    • 8.4. Recommendations
  • 9. Summary and conclusions
    • 9.1. Correlation of SCRIM and Other Skid Resistance Measurement Devices
    • 9.2. Management of Seasonal Variation
    • 9.3. Improvements in PSV/PAFV Tests
    • 9.4. Alternative Methods of Assessing Aggregate Skid Resistance
    • 9.5. Use of GIS for Skid Resistance Management
  • 10. Recommendations
  • References
  • Appendix A Skid Resistance Working Group
  • Appendix B SCRIM correlation trial protocol
  • B.1 Site Selection
  • B.2 Test Plan
  • B.3 General Issues
  • B.3.1 Expert Advice
  • B.3.2 Test Surfacings and Preparation for the Trial
  • B.3.3 Test Conditions
  • B.3.4 Test Procedures
  • B.3.5 Data Recording and Processing