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Intersection Control Evaluation (ICE) Part 2- Evaluating and Pre-screening Alternative Intersection and Interchange concepts using HCM6

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 seventh webinar in the series will describe the capabilities of the HCM6 to perform evaluations of alternative intersections and interchanges. With the publication of the FHWA Alternative Intersection and Interchange Guides in 2014, and with an increasing number of states adopting ICE (Intersection Control Evaluation) policies, methods are needed for quantifying the operational performance of these alternatives. The HCM6 methods are empirically anchored in field-measured performance of alternative intersections and interchanges in the U.S. They serve a key need in the ICE evaluation process between initial planning-level assessments and eventual microsimulation analyses of the preferred alternative. The HCM6 also introduces for the first time a Level of Service framework to allow these intersection forms to be compared against each other, and against conventional intersection designs. The webinar will present methodological details, as well as case studies to illustrate the method through applications.

Learning Objectives

  • Understand the unique capabilities of the HCM methods in evaluating alternative intersections and interchanges;
  • Learn, at a high level, about the steps in the HCM alternative intersection and interchange analysis method;
  • Become familiar with the new Level of Service (LOS) framework for alternative intersections and interchanges in the HCM; and
  • Understand how the new HCM6 methods can fit within an ICE policy and operational analysis framework.
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).