Concurrent Flow Lanes - Phase II
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2009-04-17
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TRIS Online Accession Number:01128988
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Edition:Final Report
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Abstract:This report provides the findings from a research effort designed to ascertain whether or not a chosen simulation software platform, the VISSIM micro-simulation platform, provides a suitable environment for modeling and analyzing traffic operations, including the specific details associated with modeling concurrent flow lanes with designated access points, along significant portions of the Maryland freeways. Details of the roadway geometry, traffic volume, vehicle composition, and vehicle occupancy required for the development of the existing conditions and proposed alternative models of the study roadway segment are provided. Techniques developed to ensure smooth transitioning between lanes and across links in both existing and proposed designs, provide continuous or limited access as required to managed lanes for only a subset of the classes, and ensure consistency in acceleration and deceleration lanes are presented. Parameters chosen through the calibration effort were employed in additional simulation experiments designed to assess the potential benefits of proposed alternative high occupancy toll (HOT) lane facility designs under 2030 demand estimates. This report describes additional modeling effort required to replicate vehicular behavior in the presence of limited access HOT lane facilities with one or two HOT lanes.
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