Building more pavement may turn out to be the best solution to achieve the desired results.  However, in order to fully analyze the impact of various congestion improvement strategies, including “build more pavement”, it is necessary to be able to determine the capacity of the roadway under current conditions as well as for various implementation strategies under forecasted future conditions.  The Highway Capacity Manual provides transportation practitioners and researchers with a consistent system of techniques for the evaluation of the quality of service on highway and street facilities.