During the conduct of the Strategic Highway Research Programs (SHRP) on highway operations, flexible and rigid pavement preventive maintenance treatments were placed on pavements in the United States and Canada. The placement and performance monitoring of these Specific Pavement Studies (SPS-3 and SPS-4) has been conducted under the SHRP and Federal Highway Administration (FHWA) Long Term Pavement Performance Program (LTPP). Field performance reviews of the preventive maintenance treatments have also been conducted by Expert Task Groups (ETG) organized by the Pavement Division of the FHWA.

This report summarizes the results of the ETG performance surveys conducted after 5 years of service and the results of the preliminary analysis of LTPP Database data for the SPS-3 experiment.