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Presentation to the Local Authority Roads Conference 2014

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Pavement Evaluation and Management. Chapter 2 ... (annual programme) ... Project Level Assessment. Site Inspection. – PowerPoint PPT presentation

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Title: Presentation to the Local Authority Roads Conference 2014


1
Road Management Guidance Update of the Orange
Book 2014
  • Presentation to the Local Authority Roads
    Conference 2014
  • Treacys West County Hotel, Ennis
  • By Gavin ODonnell, Arup
  • 21 May 2014

2
Speaker
  • Gavin ODonnell
  • NRA Standards Project Co-ordinator (2011-2014)
  • Associate Director, Arup
  • Chartered Engineer
  • Update of the Orange Book 2014

3
Agenda
  • Overview
  • Objectives
  • Pavement Evaluation and Management
  • Design Principles
  • Materials for Use
  • Other Minor Changes
  • Appendices
  • Best Practice Guide
  • Update of the Orange Book 2014

4
  • Update of the Orange Book 2014

5
Overview
  • Guidelines on the Depth of Overlay to be used on
    Rural Non-National Roads, First Edition, DOELG
  • First edition of the Orange Book published in May
    1999
  • Provided a valuable and accessible user-guide for
    those engaged in overlay design
  • Remained useful, but standards became dated over
    time
  • Guidelines on the Depth of Overlay to be used on
    Rural Regional and Local Roads, Second Edition,
    DTTAS
  • Arup was engaged to review and update the First
    Edition
  • Delivered through a Technical Committee
  • Published in March 2014
  • Formally launched at todays conference
  • Update of the Orange Book 2014

6
Objectives
  • Initial Brief
  • Update to current EU and NRA DMRB Standards
  • Reference to historical documents
  • New methods and technologies
  • Materials advice
  • Appendices update
  • Other Considerations
  • Additional context with other DTTAS initiatives
    inserted for consistency (e.g. the Rural Flexible
    Roads Manual, etc.)
  • Document to remain as largely stand-alone (i.e.
    NRA Specification extracts remain in appendices)
  • Expand guidance on materials and construction
    issues
  • Update of the Orange Book 2014

7
Pavement Evaluation and Management
  • Chapter 2 New Chapter
  • Pavement Evaluation
  • Summary of the recent procedure developments
  • Regional Road Network Pavement Condition Study
    Report
  • Rural Flexible Roads Manual
  • Rating based on the PSCI (annual programme)
  • Periodic visual inspection
  • Update of the Orange Book 2014

8
Pavement Evaluation and Management
  • Condition Rating
  • Initial step of Network Level Assessment
  • Linked to the PSCI rating system
  • Mechanical Data and Visual Inspection used
  • Treatment Measures by Condition Rating
  • 1 2 - Road Reconstruction
  • 3 4 - Structural Overlay
  • 5 6 - Surface Restoration
  • 7 8 - Resealing and Restoration of Skid
    Resistance
  • Update of the Orange Book 2014

9
Pavement Evaluation and Management
  • Treatment Options
  • Resealing and Restoration of Skid Resistance
    (Ratings 7 8) addresses waterproofing skid
    resistance where surface defects exist.
  • Surface Restoration (Ratings 5 6) addresses
    drainage, potholes local strengthening of weak
    road edges.
  • Update of the Orange Book 2014

10
Pavement Evaluation and Management
  • Treatment Options (Continued)
  • Structural Overlay (Ratings 3 4) addresses
    regulation and overlaying of existing pavements,
    and drainage.
  • Road Reconstruction (Ratings 1 2) removal of
    existing pavement and replacement with new
    structural layers, and drainage.
  • Update of the Orange Book 2014

11
Pavement Evaluation and Management
  • Flow Chart
  • Assessment and Management Process
  • Network Level
  • Mechanical Data
  • Project Level Assessment
  • Site Inspection
  • Additional Data
  • Confirm PSCI
  • Other Issues (e.g. HS, Drainage, Visibility,
    etc.)
  • Construction Post Construction Assessment
  • Update of the Orange Book 2014

12
Design Principles
  • Chapter 3
  • First Edition Chapters 2, 3, 4 5 combined, text
    / references update
  • Focus on update to reflect NRA HD 25-26 Pavement
    and Foundation Design Standard
  • Guidance on FWD methods updated (ref. Appendix A)
  • Update of the Orange Book 2014

13
Materials for Use
  • Chapter 4 New Chapter
  • Detailing the typical pavement layers
  • Material descriptions
  • Guidance linked to layers
  • Update of the Orange Book 2014

14
Materials for Use
  • Summary Tables of Overlay Materials
  • Material Types
  • Advantages
  • Disadvantages
  • Factors / Conditions to Note
  • Table 4.1 Granular Unbound, Granular Bound and
    Cold Bituminous Mix Materials
  • Table 4.2 Hot Bituminous Materials
  • Table 4.3 Recycled Materials
  • Update of the Orange Book 2014

15
Materials for Use
  • Update of the Orange Book 2014

16
Other Minor Changes
  • Rational Overlay Design Solutions
  • Chapter 5 Adaption of 1999 Chapter 6
  • Tables updated to include equivalent design
    traffic parameters (in terms of msa)
  • Drainage
  • Chapter 7 Update of 1999 Chapter 8
  • Drainage guidance updated and reference documents
    added
  • General Recommendations
  • Chapter 8 Update of 1999 Chapter 9
  • Recommendations added regarding survey data
    record keeping, temporary traffic management and
    safety health
  • Update of the Orange Book 2014

17
Appendices
  • Appendix A updated to include latest guidance
    on FWD testing
  • Appendix B reproduction of Sample Trial Pit Log
  • Appendix C updated App E to reflect new
    standards for Bituminous Material layer
    thicknesses
  • Appendix D update App C to reflect changes to
    the NRA Series 800 pavement specification
    requirements (see http//nrastandards.nra.ie or
    all NRA Standards and Specifications)
  • Appendix E reproduction of App D Provisional
    specification for stabilised wet-mix macadam
  • Appendix F production of Best Practice Guide
  • Update of the Orange Book 2014

18
Best Practice Guide
  • Appendix F expanded for Pavement Works
    Construction
  • Significant input from Local Authorities to
    reflect the realities
  • Notes on items to watch at various stages of the
    pavement construction process, including the
    items listed below

Commencement Checks Cold Milling Pavement Widening Surface Dressing
Notes on Material Layers Bituminous Joints Kerbing Placing Chippings on HRA
Material Laying Tack/Bond Coat Quality and Testing Completion Checks
High Friction Surfacing Compaction
  • Update of the Orange Book 2014

19
Acknowledgements
  • Technical Committee
  • DTTAS (John McCarthy)
  • NRA (John Fitzsimons and Eddie Winterlich)
  • Roscommon County Council (Greg ODonnell)
  • Arup (Eoin Brennan, Peter Adams and Gavin
    ODonnell) also received inputs from Kieran
    Feighan, PMS.
  • Local Authority Contributions
  • Cork County Council (Aidan Weir)
  • Donegal County Council (Stephen Flynn)
  • Kerry County Council (Frank Harnett)
  • Leitrim County Council (Seamus OConnor)
  • Offaly County Council (Charles McCarthy)
  • South Tipperary County Council (Peter Britton)
  • Wexford County Council (Noel ODriscoll)
  • Update of the Orange Book 2014

20
Queries
  • For comments or queries, please note the contact
    details on the rear cover of the March 2014
    Orange Book
  • Update of the Orange Book 2014

21
Road Management Guidance Update of the Orange
Book 2014
Thank You!
  • Presentation to the Local Authority Roads
    Conference 2014
  • Treacys West County Hotel, Ennis
  • By Gavin ODonnell, Arup
  • 21 May 2014
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