Comparison of US and French Rational Procedures for the Design of Flexible Airfield Pavements

In the United States (US), FAARFIELD is now the new standard Federal Aviation Administration (FAA) design software for airfield pavements. In France, the Alizé-Airfield pavement program, developed by the Laboratoire Central des Ponts et Chaussées (LCPC) under a cooperative agreement with the Service Technique de l’Aviation Civile (STAC), is intended to become the reference design software. A similar rational approach to design is used in these two programs. It consists in comparing computed strains induced by traffic loads at critical levels of the designed structure to allowable strains. This paper deals with the comparison of US and French procedures for the design of flexible airfield pavements. It is aimed at describing the specifics of each of the two computer programs (e.g., model hypotheses, probability considerations, use of conservative parameters). A sensitivity study is conducted so as to quantify the change in output data with respect to the change in input parameters in both software programs. The versions used for comparison are FAARFIELD version 1.302 and Alizé-Airfield pavement 4.1.0. This parametric study concerns the influence of various input parameters (subgrade and asphalt moduli, gross weight, number of passes, layer thicknesses) on flexible thickness design for both isolated aircraft and traffic mixes, and considering both asphalt and subgrade failure criteria. A comparison of computed mechanical values obtained from FAARFIELD output files and Alizé-Airfield pavement charts is also presented.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: 23p
  • Monograph Title: 2010 FAA Worldwide Airport Technology Transfer Conference: Next Generation of Airport Technology

Subject/Index Terms

Filing Info

  • Accession Number: 01608087
  • Record Type: Publication
  • Files: TRIS, ATRI, USDOT
  • Created Date: Aug 19 2016 12:31PM