Reliability of the Flexible Pavement Design Model.

Abstract

The design of flexible pavements by the US Army Corps of Engineers is currently based on the California bearing ratio (CBR) curve. The CBR curve is empirical, and the current design approach is deterministic. A probabilistic approach, providing more reliable designs at potentially lower costs, can be developed from the current design procedure, except that the reliability of the CBR curve is uncertain. This study was undertaken to establish the reliability of the current CBR-based flexible pavement design model, using existing data from accelerated traffic tests. The reliability of the design model was found to be 50 percent, excluding the effects of conservative estimates of the design parameters. Keywords: CBR equation; Flexible pavement; and Pavement design.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1985
Accession Number
ADA162004

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  • John C. Potter

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  • Aircraft Landings
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  • Engineering

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  • Computational Modeling and Simulation
  • Pavement Materials Engineering.
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