Road Design
A Platform for Managing Supplements to the Austroads Guide to Road Design
- Publication no: AP-R692-23
- ISBN: 978-1-922994-01-1
- Published: 18 August 2023
- PDF (free) Download
This report is one of the two reports that document the findings of a research project undertaken to update the Austroads Guide to Road Design (AGRD). The project reviewed the jurisdictional practices of developing supplements to the AGRD to identify means to make the content consistent and to harmonise processes. The objective of the project was to minimise supplements through improved management of the content.
This report describes appropriate principles for developing information on supplements and for managing the transfer of information from supplements to the AGRD.
The report includes a cross-jurisdictional platform for the management of supplements and a pathway for including supplement material in the various parts of the AGRD.
The second report AP-R693-23 Recommended Changes to the Austroads Guide to Road Design describes the classification of material in the jurisdictional supplements to the AGRD.
Watch a detailed webinar presented by Dr Rod Troutbeck, Dr Hafez Alavi, Mark Lenske and Phil Rosser.
- Summary
- 1. Introduction
- 1.1 Background
- 1.2 Rationale for Managing Supplements
- 1.3 Report Outline
- 1.4 Outline of the Second Report
- 2. Role of the Austroads Guide to Road Design, Supplements and Other Documents
- 2.1 Constructing an Asset
- 2.2 Engineering Processes
- 2.3 Requirements of the Information in the Austroads Guide to Road Design and Supplements
- 2.4 The Relationship of the Guide to Road Design to Other Guides and Documents
- 2.5 Relationship of Supplements to the Austroads Guide to Road Design
- 2.6 Implications for Managing Material in the Supplements
- 2.7 Managing Risk Through the Guide to Road Design
- 3. Current Processes Used to Identify New Material for the Guide
- 3.1 Comments on the Development of Jurisdictional Supplements
- 3.2 Description of the Current Practices to Update a Part
- 3.3 Case Study of Introducing New Material into the Guide
- 3.4 Risks and Opportunities with the Current Approach to Update a Part
- 3.4.1 Risks
- 3.4.2 Opportunities
- 3.5 Process of Incorporating Supplement Guidance into the Guide
- 3.6 Risks and Opportunities When Incorporating Supplement Material in the Guide
- 4. Concepts for Managing Knowledge and Guidance in a Supplement
- 4.1 Information Synthesis and Maturity
- 4.2 Supplement Material Review
- 5. Principles for Managing Information in Supplements and the Guide
- 5.1 Summary of the Comments from the Project Control Group
- 5.1.1 Requirements for Supplements
- 5.1.2 Supplement Restraints
- 5.1.3 Requirements of Jurisdictions
- 5.1.4 Departures from the Guide
- 5.1.5 The Content and Style of the Guide
- 5.2 Implications for Developing Options for Managing Supplement Material
- 5.3 Potential Options for Managing Supplement Material
- 5.1 Summary of the Comments from the Project Control Group
- 6. Cross-jurisdictional Platforms for Managing Supplements
- 6.1 PATH and SAFE
- 6.2 Need for a Supplement
- 6.3 Objectives and Tasks
- 6.3.1 Task 1: Classify a Supplement Entry
- 6.3.2 Task 2: Is the Supplement Entry Inappropriate?
- 6.3.3 Task 3: Does the Supplement Entry ‘Add Value’?
- 6.3.4 Task 4: Is the Supplement Entry Consistent with AGRD Principles?
- 6.3.5 Task 5: Document the Justification of the Supplement Entry.
- 6.3.6 Task 6: Document and Quantify the Outcomes from the Application of the Supplement Entry
- 6.4 Reflecting on the Objectives
- 7. A Recommended Process for Evaluating Supplements
- 7.1 Classify the Supplement Entry
- 7.2 Eliminate Conflicts with the Guide.
- 7.3 Detailed Assessment of the Supplement Entry
- 7.4 Documentation of the Supplement Entry
- 8. Application of the Processes to Existing Supplements
- 8.1 Review of the Victorian DoT Supplement to Part 6.
- 8.1.1 Part 6 Section 1.5: Principles Considered in Roadside Design to Achieve the Safest System
- 8.1.2 Part 6 Section 1.6.4: Appropriate Barriers and Other Treatments
- 8.1.3 Part 6 Section 1.8: Overview of the Roadside Risk Assessment Process
- 8.1.4 Part 6 Section 1.9.4: Measuring the Lateral Distance to a Hazard
- 8.1.5 Part 6 Section 6.7: Select a Barrier System and Define its Working Width (Step 5)
- 8.1.6 Part 6 Section 6.8.2: Minimum Lateral Distance of a Barrier from a Hazard
- 8.1.7 Speed Related Working Widths
- 8.1.8 Aligning the Supplements with the Principles of Part 6.
- 8.1.9 Including Information in a Supplement from Older Supplements
- 8.2 Review of the TMR Supplement to Part 3.
- 8.2.1 Part 3 Section 4.2.3: Crown Lines
- 8.2.2 Part 3 New Section 4.5.5: Rock Fall Protection
- 8.2.3 Part 3 New Section 4.15 Roads in a Rainforest (Including the Wet Tropics)
- 8.3 Overall Assessment of the Processes
- 8.1 Review of the Victorian DoT Supplement to Part 6.
- 9. A Pathway for Moving Information from Supplements to the Guide
- 9.1 Maintaining the Authority of the Guide
- 9.2 The Guide Being More Inclusive
- 9.3 Greater Harmonisation
- 9.4 Two-way Actions
- 9.5 Eliminating Guidance
- 9.6 Providing a Summary
- 9.7 Is the Guide a Training Document?
- 9.8 Resourcing the Management of Supplements and the Guide
- 10. Conclusions and Recommendations
- 10.1 Conclusions
- 10.2 Recommendations
- 10.3 Endorsement by the Road Design Task Force
- References
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