The TRB Committee on Pavement Maintenance (AHD20) is concerned with causes of pavement deterioration and corrective measures to improve surface and subsurface conditions in a safe and effective manner while meeting motorist expectations.

The TRB Committee on Roadway Pavement Preservation (AF020) is concerned with meeting the future needs of surfaced and un-surfaced roadways by addressing the technical, operational, and economic issues related to the preservation of infrastructure assets.