Cover of Austroads LTPP and LTPPM Study - Summary Report 2012-13
Austroads LTPP and LTPPM Study - Summary Report 2012-13
  • Publication no: AP-T266-14
  • ISBN: 978-1-925037-65-4
  • Published: 6 May 2014

This report summarises the activities undertaken during the 2012–13 year for a long term Austroads pavement monitoring project.

Austroads project AT1064 Long-Term Performance Monitoring to Develop Consistent Performance Models was originally established to complement the long-term pavement performance (LTPP) study of the United States Strategic Highway Research Program. The project developed protocols for establishing LTPP sites and has monitored a range of in-service pavement sites since 1995. In 1999 another eight sites, known as the long-term pavement performance maintenance (LTPPM) sites, were set up as part of the study to focus on the effects of maintenance on pavement performance.

The report briefly describes further work on the development of probabilistic road deterioration modelling, the establishment of two additional LTPP sites in South Australia and the monitoring of selected LTPP and LTPPM sites.Data trends for all sites surveyed during the year are also updated and presented in both graphical and tabular formats.

The LTPP data is available on

  • 1. Introduction
    • 1.1. Background
    • 1.2. Scope of the Report
  • 2. Summary of 2012-13 Activities
    • 2.1. 2012–13 Project Steering Group Meeting
    • 2.2. Establishment of New LTPP Sites in South Australia
      • 2.2.1. General
      • 2.2.2. Site Details
      • 2.2.3. Further Work
    • 2.3. Further Development of Probabilistic Road Deterioration (RD) Modelling: Pilot Application
      • 2.3.1. Background and Objective
      • 2.3.2. Pilot Study and its Outcomes
    • 2.4. LTPP and LTPPM Monitoring
      • 2.4.1. Monitoring Program
      • 2.4.2. Performance Trends
      • 2.4.3. Maintenance and Rehabilitation Activities
      • 2.4.4. Current Status of the LTPP/LTPPM Program
    • 2.5. Technology Transfer Activities
  • 3. Proposed Work Plan for 2013-14
  • 4. Conclusions
  • References
  • Appendix A Performance Trends at LTPP sites
  • Appendix B Performance Trends at LTPPM sites
  • Appendix C Total Cracking at LTPP and LTPPM Sites