0-6622 : implementation of a Texas Mechanistic-Empirical Thickness Design System (TxME).
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2013-10-01
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Abstract:The current flexible pavement design system (FPS)
used at the Texas Department of Transportation
(TxDOT) has limitations in that it does not use any
results from laboratory testing, so it is impossible to
determine benefits from improved base materials or
superior asphalt mixes. Developments over the last
several decades have offered an opportunity for more
rational and rigorous pavement design procedures.
Substantial work has already been completed in
Texas, nationally, and internationally in all aspects of
modeling, materials characterization, and structural
design. These and other assets provided the technical
infrastructure that made it possible to develop a new
mechanistic-empirical flexible pavement design
system (TxME) specifically for Texas. This new
system will enable Texas pavement designers to take
full advantage of new or premium materials, with a
full consideration of the influential factors, including
pavement structure, traffic volume, and environmental conditions.
The main objectives of this project were to identify or
propose performance models and implementation
approaches, and develop the new TxME.
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