TRB’s National Cooperative Highway Research Program (NCHRP) Report 825: Planning and Preliminary Engineering Applications Guide to the Highway Capacity Manual will help planners apply the methodologies of the 6th Edition of the Highway Capacity Manual (HCM) to common planning and preliminary engineering analyses, including scenario planning and system performance monitoring. It shows how the HCM can interact with travel demand forecasting, mobile source emission, and simulation models and its application to multimodal analyses and oversaturated conditions. Three case studies (freeway master plan, arterial bus rapid transit analysis, and long-range transportation plan analysis) illustrate the techniques presented in the guide. In addition to providing a cost-effective and reliable approach to analysis, the guide provides a practical introduction to the detailed methodologies of the HCM.
The guide is supplemented by a PowerPoint presentation that describes the purpose and scope of NCHRP Report 825, and includes descriptions of the three case studies.