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Title:

PROBABILISTIC DESIGN OF FLEXIBLE AND RIGID PAVEMENT USING AASHTO EQUATIONS

Accession Number:

00495064

Record Type:

Component

Availability:

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Order URL: http://worldcat.org/isbn/0309048222

Abstract:

This paper applies statistical and probabilistic methods to the design of pavements, using the existing AASHTO equations. The major purpose for applying such methods was to assess the variation of the pavement geometry as a function of the variabilities of design factors. A linear first-order approximation was applied on the AASHTO pavement design equation to determine the effect of the variation of traffic and soil support value on the variation of structural number for flexible pavement and the effect of the variation of traffic and concrete flexural strength on the variation of slab thickness for rigid pavements. The mean and variance equations for the pavement geometry were derived by using Taylor's series expansion about the mean. Nomographic solutions of these equations are provided, which would prove helpful in practical applications. The final design thickness of the pavement for a specific service life and design parameters variability is obtained by combining the nomographic solutions with the least cost concept, thereby satisfying economy, performance and statistical design requirements. Examples to illustrate the use of this technique in the design of both flexible and rigid pavements are presented.

Supplemental Notes:

This paper appears in Transportation Research Record No. 1227, Rigid and Flexible Pavement Design and Analysis: Unbound Granular Materials, Tire Pressures, Backcalculation, and Design Methods. 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

Monograph Accession #:

01414206

Authors:

Basma, Adnan A
Al-Balbissi, Adli H

Pagination:

p. 34-43

Publication Date:

1989

Serial:

Transportation Research Record

Issue Number: 1227
Publisher: Transportation Research Board
ISSN: 0361-1981

ISBN:

0309048222

Features:

Figures (7) ; References (18)

Old TRIS Terms:

Subject Areas:

Data and Information Technology; Design; Freight Transportation; Highways; Pavements; I22: Design of Pavements, Railways and Guideways

Files:

TRIS, TRB

Created Date:

Jun 30 1990 12:00AM

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