Development of a Pavement Design Expert System

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by Jafar P. Mohsen, Univ of Louisville, Louisville, United States,
Timothy R. Crowder, Univ of Louisville, Louisville, United States,

Document Type: Proceeding Paper

Part of: Electronic Computation

Abstract: The latest edition of the Guide for Design of Pavement Structures was published by the American Association of State Highway and Transportation Officials in 1986. This edition of the Guide introduced a requirement for the direct use of several new design parameters. Among these factors, the most prominent are the drainage coefficient, the reliability coefficient, and the standard deviation factor. The incorporation of these parameters in the design procedure would improve the final design only if they are properly evaluated and if their assigned values would represent the site conditions as precisely as possible. The use of an expert system to assist design engineers in utilizing the current AASHTO Design Guidelines as well as determining the most proper value for each of the new design parameters is proposed. The development of such a system is described in this paper.

Subject Headings: Pavement design | Highway and road structures | Parameters (statistics) | Structural design | Expert systems | Drainage |

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