scope:

The HCM 6th Edition: A Guide for Multimodal Mobility Analysis provides a wealth of methods and tools for estimating various performance measures that can be used in assessing traffic operational quality for passenger cars, trucks, pedestrians, bicyclists, and transit passengers. The methods provided address various analyst needs as a function of input data availability and accuracy, and include operational analysis, design, and planning and preliminary engineering analysis. HCM methods are developed, reviewed, and refined by a broad and diverse group of professionals in the private and public sectors, and in academia. New tools provided in this edition estimate travel time reliability measures, evaluate ATDM impacts, assess alternative intersection and interchange designs, and provide multimodal LOS estimates, among others.