Author Description

The Transportation Research Board's (TRB's) "Highway Capacity Manual" (HCM) provides a collection of state-of-the-art techniques for estimating the capacity and determining the level of service for transportation facilities, including intersections and roadways as well as facilities for transit, bicycles, and pedestrians. Developed and revised under the direction of the TRB Committee on Highway Capacity and Quality of Service, this newest edition, HCM 2000, presents the best available techniques for determining capacity and level of service for transportation facilities at the start of the new millennium.