A capital pavement preservation program for rural roads sustainability

Mohave County, Arizona maintains a new Capital Pavement Preservation Program (CPPP) to identify, rank, schedule, and budget for the structural rehabilitation of County hard surfaced roads, which approach an end to structural service life. It facilitates diligent programming of capital projects with limited funds to sustain the County’s extensive rural road network. This paper presents the technical basis of program development encompassing an engineering-based assessment of pavement structural stability using available County and published traffic and soils data. Program structure development entails establishing discrete road study sections with uniform (re)construction year, determining roadbed soil classification for estimating in-situ material stiffness, and assessing cumulative traffic load since (re)construction. Program findings and critical needs recommendations draw on practical analyses, which include (1) determining a Design Structural Number (DSN) from composition and thickness of pavement structural section layers comprising road study sections and (2) calculating a comparative Operational Structural Number (OSN) using synthesized data on cumulative traffic load and roadbed soil stiffness. The resulting measure of structural stability, OSN to DSN, constitutes the base CPPP technical criterion for pavement rehabilitation project selection and enables road network sustenance through an engineered approach designed for practical and efficient application to support long-term CPPP administration.

• Availability:
  • Find a library where document is available. Order URL: http://www.piarc.org/en/order-library/13949-en-Proceedings%20of%20the%20XXIVth%20World%20Road%20Congress,%20Mexico%20-%202011.htm
• Supplemental Notes:
  • Abstract reprinted with permission of the World Road Association – PIARC.
• Corporate Authors:

  World Road Association (PIARC)

  La Grande Arche, Paroi Nord, Niveau 5
  F-92055 La Defense Cedex,   France 
• Authors:
  • Latoski, S
• Conference:
  • 24th World Road Congress
  • Location: Mexico City , Mexico
  • Date: 2011-9-26 to 2011-9-30
• Publication Date: 2011

Language

• English

Media Info

• Media Type: Digital/other
• Features: Figures; Photos; References;
• Pagination: 7p
• Monograph Title: 24th World Road Congress Proceedings: Roads for a Better Life: Mobility, Sustainability and Development

Subject/Index Terms

• TRT Terms: Pavement maintenance; Pavement structural numbers; Preservation; Programming (Planning); Rehabilitation; Rural highways; Stability analysis; Sustainable development
• Geographic Terms: Mohave County (Arizona)
• Subject Areas: Administration and Management; Environment; Highways; Maintenance and Preservation; Pavements; I10: Economics and Administration; I15: Environment; I60: Maintenance;

Filing Info

• Accession Number: 01500416
• Record Type: Publication
• ISBN: 2840602679
• Files: TRIS
• Created Date: Dec 3 2013 9:11AM