摘要: The new Mechanistic-Empirical Pavement Design Guide (MEPDG) developed under the National Cooperative Highway Research Program (NCHRP) Project 1-37A represents a major change as compared to the 1993 AASHTO Pavement Design Guide. ME... 展开 The new Mechanistic-Empirical Pavement Design Guide (MEPDG) developed under the National Cooperative Highway Research Program (NCHRP) Project 1-37A represents a major change as compared to the 1993 AASHTO Pavement Design Guide. MEPDG provides a rational pavement design framework based on the mechanistic-empirical principles to characterize the impacts of traffic, climate, and material properties on the pavement performance. Before replacing the 1993 Pavement Design Guide (and its accompanying DARWin 3.1 design software) currently used by Louisiana Department of Transportation and Development (LADOTD), the nationally calibrated MEPDG design models need to be further validated and calibrated against the local conditions in Louisiana. The objectives of this study were to use MEPDG 1.1 software evaluating the performance of typical Louisiana fl exible pavement types, materials, and structures as compared with Louisiana pavement management system (PMS) performance data and identify the areas for further local calibration of the MEPDG in Louisiana. Only new and full-depth rehabilitated (with a reconstruction of base) flexible pavements were investigated. The selected projects for analysis included five typical Louisiana flexible pavement structure types: asphalt concrete (AC) over AC base, AC over rubblized portland cement concrete (RPCC) base, AC over crushed stone, AC over soil cement, and AC over stone interlayer. Network-level pavement condition data from the Louisiana pavement management system were used to compare with the MEPDG predicted pavement performance. 收起