Developing a network-level structural capacity index for structural evaluation of pavements.

Details

• Creators:
  Bryce, James M. ; Flintsch, Gerardo W. ; Katicha, Samer W. ; Diefenderfer, Brian K.
• Corporate Creators:
  Virginia Tech Transportation Institute
• Subject/TRT Terms:
  • Pavement management systems
  • Decision making
  • Deflection tests
  • Nondestructive tests
  • Pavement maintenance
  • Structural analysis
• Publication/ Report Number:
  VCTIR 13-R9
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  Virginia. Dept. of Transportation
• NTL Classification:
  NTL-HIGHWAY/ROAD TRANSPORTATION-Pavement Management and Performance ; NTL-PLANNING AND POLICY-Management Systems
• Abstract:
  The objective of this project was to develop a structural index for use in network-level pavement evaluation to facilitate ; the inclusion of the pavement’s structural condition in pavement management applications. The primary goal of network-level ; pavement management is to provide the best service to the users for the available, often limited, resources. Pavement condition ; can be described in terms of functional and structural condition. The current widespread practice of network-level pavement ; evaluation is to consider only the functional pavement condition. This practice results in suggested treatments that are often ; under-designed or over-designed when considered in more detail at the project level. The disagreement can be reduced by ; considering the structural capacity of the pavements as part of a network-level decision process. This study developed a flexible ; pavement structural index to use for network-level pavement applications. Available pavement condition data were used to ; conduct a sensitivity analysis of the index, and example applications were tested. ; The results indicated that including the structural index developed, named the Modified Structural Index (MSI), into the ; network-level decision process minimized the discrepancy between network-level predictions and project-level decisions when ; compared to the current network-level decision-making process. A pilot implementation of the MSI showed that it can be used ; to support various pavement management decision processes, such as network-level structural screening, deterioration modeling, ; and development of structural performance measures. The pilot test also indicated that the impact of the structural condition of ; the pavement on the performance of a maintenance treatment and its impact on life-cycle costs can be quantified.
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• Format:
  PDF
• Funding:
  RC00021
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/26080/dot_26080_DS1.pdf
• File Type:
  [PDF - 1.43 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:525725252a12883d103b87b039b33499228289e55f74788e3396c7408dfb7f35c83efb58b046839f3f8b1a3198da43a64789d3e8b20fe08fda9dfbd205e6d3b2