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Accession Number PB2013-111539
Title Iowa Calibration of MEPDG Performance Prediction Models, June 2013.
Publication Date Jun 2013
Media Count 117p
Personal Author D. Ma H. Ceylan K. Gopalakrishnan S. Kim
Abstract This study aims to improve the accuracy of AASHTO Mechanistic-Empirical Pavement Design Guide (MEPDG) pavement performance predictions for Iowa pavement systems through local calibration of MEPDG prediction models. A total of 130 representative pavement sites across Iowa were selected. The selected pavement sites represent flexible, rigid, and composite pavement systems throughout Iowa. The required MEPDG inputs and the historical performance data for the selected sites were extracted from a variety of sources. The accuracy of the nationally-calibrated MEPDG prediction models for Iowa conditions was evaluated. The local calibration factors of MEPDG performance prediction models were identified to improve the accuracy of model predictions. The identified local calibration coefficients are presented with other significant findings and recommendations for use in MEPDG/DARWin- ME for Iowa pavement systems.
Keywords Calibration
Construction materials
Flexible pavements
Mechanistic-Empirical Pavement Design Guide(MEPDG)
Performance evaluation
Research projects Design

Source Agency Federal Highway Administration
NTIS Subject Category 50A - Highway Engineering
50C - Construction Equipment, Materials, & Supplies
91B - Transportation & Traffic Planning
43G - Transportation
89G - Construction Materials, Components, & Equipment
Corporate Author Iowa State Univ., Ames. Institute for Transportation.
Document Type Technical report
Title Note Final rept.
NTIS Issue Number 1325
Contract Number N/A

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