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Cover of Technical Basis of Austroads Guide to Pavement Technology Part 2: Pavement Structural Design
Technical Basis of Austroads Guide to Pavement Technology Part 2: Pavement Structural Design
  • Publication no: AP-T356-21
  • ISBN: 978-1-922382-71-9
  • Published: 30 May 2021

This report documents the technical basis of the 2010, 2012 and 2017 editions of Austroads’ Guide to Pavement Technology Part 2: Pavement Structural Design. The report does not repeat the technical basis that was reported in 2008 (AP-T98-08).

Using the same approach used in the 2008 document, the report draws upon a large body of published reports and technical minutes of relevant committees.

Watch the webinar with Dr Michael Moffatt and Dr Geoff Jameson who detail the technical basis for changes made to the Guide.

  • Summary
  • 1. Introduction
    • 1.1 Purpose
    • 1.2 Scope
    • 1.3 Methodology
  • 2. Working Group Membership
  • 3. Overview of Changes to Part 2
    • 3.1 General
    • 3.2 2010 Edition
    • 3.3 2012 Edition
      • 3.3.1 Unbound Granular Materials
      • 3.3.2 Modified Granular Materials
      • 3.3.3 Design Traffic
      • 3.3.4 Mechanistic-empirical Design of Flexible Pavements
      • 3.3.5 Design of Rigid Pavements
    • 3.4 2017 Edition
      • 3.4.1 Mechanistic Design of Flexible Pavements
      • 3.4.2 Performance Relationship to Predict Allowable Traffic Loading in Terms of Permanent
      • Deformation
      • 3.4.3 Cemented Materials
    • 3.5 Asphalt
      • 3.5.1 Lean-mix Concrete Subbase
      • 3.5.2 Design of Rigid Pavements
  • 4. Subgrade Evaluation
    • 4.1 Elastic Characterisation
    • 4.2 Performance Relationship to Predict Allowable Traffic Loading in Terms of Permanent Deformation
  • 5. Pavement Materials
    • 5.1 Unbound Granular Materials
    • 5.2 Modified Granular Materials
    • 5.3 Cemented Materials
      • 5.3.1 Elastic Characterisation
      • 5.3.2 Fatigue Relationship
    • 5.4 Lean-mix Concrete Subbase
    • 5.5 Asphalt
      • 5.5.1 Definition of Design Modulus
      • 5.5.2 Determination of Design Modulus from Measured Flexural Modulus
      • 5.5.3 Asphalt Fatigue Relationship
  • 6. Design Traffic
    • 6.1 Rigid Pavement
    • 6.2 Flexible Pavement
    • 6.3 Axle Group Loads Which Cause Equivalent Damage
    • 6.4 Traffic Load Distributions
    • 6.5 Capacity Considerations
  • 7. Design of Flexible Pavements
    • 7.1 Mechanistic-empirical Design
      • 7.1.1 Linear Elastic Response-to-load Model
      • 7.1.2 Non-Linear Elastic Response-to-load Model
      • 7.1.3 Modulus of Selected Subgrade Materials and Lime Stabilised Subgrade
      • 7.1.4 Example Design Chart
    • 7.2 Granular Pavements with Thin Bituminous Surfacings
  • 8. Design of Rigid Pavements
  • 9. Procedures for Evaluation of Pavement Damage due to Specialised Vehicles
  • 10. Summary
  • References
  • Appendix A References to Technical Basis Information in Source Documents
  • Appendix B Development of Revised Subgrade Strain Relationship for 2017 Guide
  • Appendix C Adjustment of Cemented Materials Fatigue Relationships for the 2017 Guide
  • Appendix D Equivalent Axle Loads
    • D.1 Origins of Equivalent Axle Loads
    • D.2 Assumed Interaction between Axles
    • D.3 2017 Calculation of Equivalent Axle Load
Related publications
Guide to Pavement Technology Part 2: Pavement Structural Design
AGPT02-17
Technical Basis of Austroads Guide to Pavement Technology Part 2: Pavement Structural Design
AP-T98-08
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