Determining passenger car equivalencies of trucks, buses, and recreational vehicles for two lane rural highways. Paper prepared for the 55th Annual Meeting of the Transportation Research Board TRB, Washington, D.C., January 1976.

Passenger car equivalents or adjustment factors for trucks, buses, and recreational vehicles are often required in carrying out highway capacity calculations. This paper presents, in part, the results of a research project into the effect that recreational vehicles have on highway capacity. The paper attempts an estimate of the correct placement by applying basic traffic engineering relationships.