Industry collaboration on a misbehaving pavement

When a relatively new pavement does not perform as expected it is usual to determine why and then look to which organisations should pay to fix the problem. In an Alliance context, risk and reward is shared and the apportioning of cost to remedy defects is known in advance. Focus is immediately on determining why it occurred, how to fix the problem and what are the lessons learnt. Auckland Motorway Alliance (AMA) has recently experienced transverse cracking in some areas of the network foamed bitumen stabilised basecourse rehabilitation. Some of the cracking occurred in pavement areas stabilised prior to AMA formation. Foamed bitumen stabilisation (FBS) has proven to be a cost effective and practical rehabilitation technique for AMA and it is widely used in the roading industry in NZ. This presentation outlines the collaboration process undertaken to bring together a pavement expert group consisting of two Client representatives, a representative from each of two Contractor organisations and two Consultant representatives to determine possible reasons for the unusual pavement behaviour. To bring consensus to the group the Delphi Process was used as a means of filtering more than a dozen possible causes to an agreed top three reasons.

• Record URL:
  http://www.nziht.co.nz/Conferences-and-Seminars/2014-NZTA-NZIHT-15th-Annual-Conference/2nd---4th-November-2014,-Rydges-Queenstown/
• Authors:
  • Chappell, B
• Conference:
  • NZTA/NZIHT Annual Conference, 15th, 2014, Queenstown, New Zealand
• Publication Date: 2014-11

Language

• English

Media Info

• Pagination: 5p
• Monograph Title: Industry collaboration: success, barriers and future development: 15th Annual Conference, Rydges, Queenstown, 2-4 November 2014

Subject/Index Terms

• TRT Terms: Contractors; Cracking; Liability; Partnerships; Pavement performance; Pavements; Risk; Risk management
• Uncontrolled Terms: Responsibility; Road design and asset management
• Geographic Terms: Auckland, New Zealand; New Zealand
• ATRI Terms: Contractor; Cracking; Partnership; Pavement performance; Responsibility; Risk management; Stabilization
• ITRD Terms: 4974: Foamed bitumen
• Subject Areas: Highways; Law; Pavements; I23: Properties of Road Surfaces;

Filing Info

• Accession Number: 01573412
• Record Type: Publication
• Source Agency: ARRB
• Files: ITRD, ATRI
• Created Date: Aug 24 2015 2:11PM