RELIABILITY OF THE FLEXIBLE PAVEMENT DESIGN MODEL

The design of flexible pavements by the U.S. 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 if the reliability of the CBR curve is known. 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 about 50 percent, excluding the effects of conservative estimates of the design parameters.

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1987/1136/1136-008.pdf
• Record URL:
  • https://scholar.google.com/scholar_lookup?title=RELIABILITY+OF+THE+FLEXIBLE+PAVEMENT+DESIGN+MODEL&author=J.+Potter&publication_year=1987
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309045169
• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Flexible Pavement Design. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Potter, John C
• Publication Date: 1987

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 79-85
• Monograph Title: Pavement design
• Serial:
  • Transportation Research Record
  • Issue Number: 1136
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Accelerated tests; California bearing ratio; Flexible pavements; Mathematical models; Pavement design; Reliability
• Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways; I23: Properties of Road Surfaces;

Filing Info

• Accession Number: 00469594
• Record Type: Publication
• ISBN: 0309045169
• Files: TRIS, TRB, ATRI
• Created Date: Jul 31 1988 12:00AM