Both default and available local calibration models for the selected regions are used to predict the performance of flexible pavement by mechanistic empirical pavement design guide (MEPDG) software. The pavement sections are initially designed using 1993 AASHTO design method at various conditions including different traffic levels, percentage of overloaded vehicles, and environmental conditions. The typical data required for defining and characterizing the pavement structure were gathered from FHWA's Long-Term Pavement Performance (LTPP) program. The flexible pavement sections selected for the study are from different regions in the United States with varying climatic conditions. This paper focuses on conducting a comparative study between mechanistic empirical (NCHRP1-37A) design method and empirical 1993 AASHTO design method.
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