TRB standing committees play a vital role in facilitating the exchange of transportation research information and results. The committee members work together to develop research problem statements in their area of interest, review and recommend papers for publication and for presentation at TRB Annual Meetings, and organize Annual Meeting sessions as well as committee meetings, workshops, and other activities. Committees are made up of individuals who hold a variety of opinions on issues of concern to the profession. It is important to keep in mind that TRB standing committees and their members are not authorized to speak on behalf of TRB or to provide advice to government agencies or other organizations. Members must therefore exercise caution to avoid creating the impression that the committee or any of its members represents TRB or can commit TRB to a course of action.