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Evaluating Freeway Congestion, Queuing, Work Zones, and ATDM using the HCM 6

The Highway Capacity Manual (HCM) 6th Edition incorporates the results of millions of dollars of national, peer-reviewed research that has occurred since the publication of the HCM 2010. This edition of the HCM introduces a number of new capabilities, including travel time reliability forecasting, alternative intersections analysis, managed lane analysis, and work zone analysis. It also updates a number of existing methodologies, including those for freeway facilities and roundabouts. Recognizing that most users of the HCM implement its methods through software, this edition of the HCM highlights information that users need to know when applying the manual through software, such as input data needs and potential sources for specific performance measures, recommended default values, information on the sensitivity of results to specific inputs, and guidance on interpreting analysis results. Finally, the HCM’s expanded name, Highway Capacity Manual, 6th Edition: A Guide for Multimodal Mobility Analysis is intended to highlight the HCM’s ability to analyze the operation of non-auto modes, and to highlight the range of roadway performance measures the HCM provides beyond traditional level of service.

The third webinar in the series will describe the capabilities of the HCM6 to evaluate freeway facilities in a multi-period and multi-segment analysis framework that tracks congestions over time and space. The talk will provide an overview of the basic methodology for oversaturated freeways, and describe major changes and additions to the HCM Freeway Chapters. These changes include a new work zone method, new truck performance estimation, analysis of managed lanes and active traffic management strategies, as well as an increased emphasis on calibration of the HCM. The webinar concludes with a series of case studies and applications, illustrating how the methods can offer decision-support to real-world transportation problems.

Learning Objectives
  • Understand the unique capabilities of the HCM freeway methods
  • Learn, at a high level, about the major changes and additions to the HCM Freeway Chapters
  • Learn about the ability of the HCM to evaluate congested freeways, including effects of weather, work zones, etc.
  • Understand the need for calibrating the HCM method to reflect local conditions
Instructors Names, Bios and PDF Presentations can be found by clicking the recording link below. Once you click the recording below, click the "resources" tab to locate the PDF (after purchasing).