ALTERNATIVE SOLUTION CHARTS FOR AASHTO PAVEMENT DESIGN GUIDE

In July 1986 the American Association of State Highway and Transportation Officials (AASHTO) published a revision to its long-standing pavement design method under the title AASHTO Guide for Design of Pavement Structures (AASHTO 1986). The revised guide retains the basic algorithms for flexible and rigid pavement design that were developed from the data of the AASHTO road test. However, additionl variables have been included in the new guide so that the solution nomographs have become more complex, and the user is more likely to make errors now than with the previous nomographs. The purpose of this note is to offer alternative design charts for the solution of the guide equatons. It is recognized that with the use of the electronic calculator and the desk-top microcomuter not many engineers will ever use the solution nomographs presented in the guide. For those who must use the nomographs or would like quick graphical solutions for estimation purposes, these design charts should be easier to use than the nomographs presented in the guide. Default values for some of the variables have been assigned in the design charts presented here, and thus they are not as general as the guide nomographs. The two pavement types, flexible and rigid, are discussed in separate sections.

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Filing Info

  • Accession Number: 00465522
  • Record Type: Publication
  • Report/Paper Numbers: ASCE Paper 22313
  • Files: TRIS, ATRI
  • Created Date: Feb 29 1988 12:00AM