About AHD20

Welcome to the web site for AHD20, Pavement Maintenance. We encourage all friends and members of the committee to visit this site to learn about committee's activities. Note that there is a listing of upcoming conferences and meetings and we will try to add more as the announcements come out. Feel free to contact me if you have any announcement to add.  As always I would appreciate any ideas, comments and criticisms that could help improve the web site as well as the committee's performance.


About AHD20

In 2003, the Pavement Maintenance Committee A3C05 was designated to become AHD20.  The first annual meeting of the new AHD20 was in January 2004.  Beginning in 2003the Pavement Maintenance Committee saw the need to separate preservation from operational maintenance activities and proposed a TRB Task Force on Pavement Preservation.  The purpose of the task force was to develop and address the technical, operational and economic issues vital to preserving pavement assets.  In April of 2004, Task Force on Roadway Pavement Preservation (AF020T) was approved by TRB.  In the summer of 2008, the TRB granted full Committee status and established the Standing Committee on Pavement Preservation AHD18.

In 2010, the Scope of the Pavement Maintenance Committee AHD20 and AHD18 were redefined and clarified to better reflect the difference between maintenance and preservation.  The Pavement Maintenance Committee has been in the forefront advocating new maintenance actions to keep pace with the current demands on the Nation’s pavement network.


Committee membership Characteristics: 

Members come from several disciplines of engineering and science with diverse affiliations.  The membership structure includes federal/national (2), state/provincial (3), private sector (10), nonprofit/other (4), and academicians (9); in addition the committee has 4 international member and 3 young members. 

Individual members maintain affiliations in a variety of professional and technical organizations including: Association of Asphalt Paving Technologists (AAPT); American Association of State Highway and Transportation Officials (AASHTO); American Concrete Paving Association (ACPA); American Society of Civil Engineers (ASCE); American Society for Testing and Materials (ASTM); FHWA Pavement Preservation Expert Task Group (PPETG); Foundation for Pavement Preservation (FP2); National Asphalt Pavement Association (NAPA); Transportation  Association of Canada (TAC); International Slurry Seal Association (ISSA); and the International Society of Asphalt Pavements (ISAP), Transportation and Development Institute; and others.

The membership characteristics of the Standing Committee on Pavement Maintenance AHD20, including the numbers of members (regular, international, young, emeritus), the distribution of members (geographic, organizational, gender/race) and the number of friends is summarized in the following tables.  The number of friends of committee is 90 and they are included in communications and most volunteer to review papers.