Pavement
- Publication no: AGPT02-24
- ISBN: 978-1-922700-94-0
- Published: 18 April 2024
- Edition: 4.4
- PDF (free) Download
- View online View guide
Guide to Pavement Technology Part 2: Pavement Structural Design provides advice for the structural design of sealed road pavements. The advice has been generally developed from the approaches followed by the Austroads member agencies. However, as it encompasses the wide range of materials and conditions found in Australia and New Zealand, some parts are broadly based.
This Part covers the assessment of input parameters needed for design, design methods for flexible and rigid pavements and gives guidance on the economic comparisons of alternative pavement designs.
Austroads' pavement design software, AustPADS conducts advanced mechanistic analysis of the response-to-load of road pavements.
The AustPADS user interface and the underlying analysis engine APADS were developed by ARRB Group for Austroads.
The analysis engine is based upon a finite element method model and software developed by Dr Markus Oeser.
The primary users for AustPADS are Australia and New Zealand road managers, industry organisations and consultancies working with road agencies. Access may not be granted to other users.
If you are considering conducting training using AustPADS please contact austroads@austroads.com.au and supply information about who is conducting the training, when and where the course will be held, when the software is likely to be accessed and how many participants you are expecting.
This 47 minute video provides an overview of AustPADS and includes design and analysis examples.
Edition 4.4 published April 2024
Update to Appendix B Weighted Mean Annual Pavement Temperature. Corrections to Table 11 Loads on axles (SAST) and expected repetitions in Appendix J (Attachment).
Edition 4.3 published November 2019
Corrections to the damage calculations in Table L11.
Edition 4.2 published October 2018
Corrections to equation numbering from Section 7.4.7 onwards.
Edition 4.1 published September 2018
Corrections to 7.4.6 Cumulative Number of Heavy Vehicles Considering Capacity and Appendix D.
Edition 4.0 published December 2017
Changes to this edition of the Guide include:
- Editorial changes and minor technical changes throughout
- Major technical changes to Sections 5.3.8, 5.8, 6.4, 6.5, 6.6, 7, 8, 9.2.1, 9.4.6, 9.7, Appendix B, Appendix C, Appendix D, Appendix E, Appendix F, Appendix G, Appendix H, Appendix I, Appendix J, Appendix L, Appendix M and Appendix O.
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- 2.2.1 General
- 2.2.2 Granular Pavements with Sprayed Seal Surfacings
- 2.2.3 Cemented Granular Bases with Sprayed Seal Surfacings
- 2.2.4 Granular Pavements with Thin Asphalt Surfacings
- 2.2.5 Asphalt over Granular Pavements
- 2.2.6 Flexible Composite, Deep Strength and Full Depth Asphalt Pavements
- 2.2.7 Concrete Pavements
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- 5.3.1 Subgrade Variability
- 5.3.2 Performance Risk
- 5.3.3 Sequence of Earthworks Construction
- 5.3.4 Compaction Moisture Content Used and Field Density Achieved
- 5.3.5 Moisture Changes during Service Life
- 5.3.6 Pavement Cross-section and Subsurface Drainage
- 5.3.7 Presence of Weak Layers below the Design Subgrade Level
- 5.3.8 Lime-stabilised Subgrades
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- 6.4.1 Introduction
- 6.4.2 Factors Affecting Modulus of Cemented Materials
- 6.4.3 Determination of Design Modulus
- 6.4.4 Determination of Design Flexural Strength
- 6.4.5 Factors Affecting the Fatigue Life of Cemented Materials
- 6.4.6 Determining the In-service Fatigue Characteristics from Laboratory Fatigue Measurements
- 6.4.7 Determining the In-service Fatigue Characteristics from Laboratory Measured Flexural Strength and Modulus
- 6.4.8 Determining the In-service Fatigue Characteristics from Presumptive Flexural Strength and Modulus
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- 6.5.1 Introduction
- 6.5.2 Factors Affecting Modulus of Asphalt
- 6.5.3 Definition of Asphalt Design Modulus
- 6.5.4 Determination of Design Modulus from Direct Measurement of Flexural Modulus
- 6.5.5 Determination of Design Modulus from Measurement of ITT Modulus
- 6.5.6 Design Modulus from Bitumen Properties and Mix Volumetric Properties
- 6.5.7 Design Modulus from Published Data
- 6.5.8 Poisson’s Ratio
- 6.5.9 Factors Affecting Asphalt Fatigue Life
- 6.5.10 Fatigue Criteria
- 6.5.11 Means of Determining Asphalt Fatigue Characteristics
- 6.5.12 Permanent Deformation of Asphalt
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- 7.4.1 Introduction
- 7.4.2 Selection of Design Period
- 7.4.3 Identification of Design Lane
- 7.4.4 Initial Daily Heavy Vehicles in the Design Lane
- 7.4.5 Cumulative Number of Heavy Vehicles when Below Capacity
- 7.4.6 Cumulative Number of Heavy Vehicles Considering Capacity
- 7.4.7 Cumulative Heavy Vehicle Axle Groups
- 7.4.8 Increases in Load Magnitude
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- 8.2.1 Selection of Trial Pavement
- 8.2.2 Procedure for Elastic Characterisation of Selected Subgrade and Lime‑stabilised Subgrade Materials
- 8.2.3 Procedure for Elastic Characterisation of Granular Material
- 8.2.4 Procedure for Determining Critical Strains for Asphalt, Cemented Material and Lean‑mix Concrete
- 8.2.5 Procedure for Determining Allowable Loading for Asphalt, Cemented Material and Lean‑mix Concrete
- 8.2.6 Consideration of Post-cracking Phase in Cemented Material and Lean-mix Concrete
- 8.2.7 Design of Granular Pavements with Thin Bituminous Surfacings
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