Highway Capacity Manual 6th Edition A Guide for Multimodal Mobility Analysis (2016) / Chapter Skim
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The Highway Capacity Manual,6th Edition: A Guide for Multimodal Mobility Analysis
The Highway Capacity Manual,6th Edition: A Guide for Multimodal Mobility Analysis
Pages 1-6
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tion professional. Evaluating congested operations, Multiple transportation modes and their interactions considering multiple modes and their interactions, were a major focus in updates and revisions to the and obtaining a variety of performance measures Highway Capacity Manual (HCM)
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input to the HCM6 methods; and u Accessibility: the availability of access -- for Performance Measures example, the availability of transit within a region. Transportation professionals often need multiple performance measures to evaluate a particular facili HCM6 focuses on evaluating the capacity and ty's operational performance.
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Chapters 11, Freeway Reliability Analysis, and 17, Urban Street Reliability and ATDM, provide methodologies for evaluating the effects of various strategies -- notably ramp meter ing, managed lanes, and incident management. DOT TR NEWS 306 NOVEMBER–DECEMBER 2016 Nonautomobile Modes In response to the increasing need to estimate the performance measures for pedestrian, bicycle, and transit facilities, as well as the interactions with vehicles, the HCM6 provides tools and methods for the assessments.
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TR NEWS 306 NOVEMBER–DECEMBER 2016 Alternative Tools HCM6 recognizes the need to work with alternative tools on an operational analysis, describes the limitations of each methodology, and offers guidance on the use of simulation and other tools in conjunction with an HCM analysis. In addition, Chapter 6, HCM and Alternative Analysis Tools, explores cases for using alternative tools and simulation to supply additional performance measures not available from HCM6 methods or to analyze highway designs not addressed within the HCM performance measurement framework.
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For exam ple, travel demand models can use the capacity and speed estimates; designs can apply the queue length estimates; evaluations of the operational effects of policy decisions can use the travel time reliability estimates; and evaluations of the impacts of urban street modifications on a bicycle facility can employ the bicycle LOS estimates. In general, HCM6 provides tools for operational analysis, design analysis, and planning and prelim inary engineering analysis.
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The methods address a range of applied to estimates of How to Get Involved analyst needs related to the availability and accuracy queue length, travel As noted, the TRB Highway Capacity and Quality of input data, including operational analysis, design, time reliability, and other operational, design, and of Service Committee guided development of the planning, and preliminary engineering analysis. planning analyses.
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