Although noise was the central theme, the objective of this three-day Symposium was to discuss all of the factors, and their interactions, that affect the performance of tires in doing their intended function. We were especially concerned with the relationship of these factors in regard to the potential for reducing highway tire noise, or that portion of community noise. A second objective was to provide a written record, this Proceedings, to serve as a statement of knowledge as of November 1976. This proceedings contains all of the presented papers, a transcript of the panel and individual discussions during the Symposium (edited for clarity and brevity, but not substantive content), and several pertinent statements submitted subsequent to the meeting.