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Implementation of the NCHRP 1-37A Design Guide

Principal Investigator(s) 

A major proposed revision to the AASHTO Pavement Design Guide has recently been developed. This new Guide is expected to replace the current empirical design procedures based on road tests from the late 1950s with a state-of-the-art mechanistic-empirical design procedure that more rationally incorporates modern material types and characterization, traffic levels, and construction practices. The adoption of the new Guide by the Maryland State Highway Administration (MDSHA) will have significant ramifications for material testing and pavement design procedures in the state. This project will develop a coherent plan for MDSHA to transition from its current pavement design procedures to the new mechanistic-empirical methodology.