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原文传递 Columbus Metropolitan Freeway Management System (CMFMS) Effectiveness Study. Part 2. The After Study.

题名：	Columbus Metropolitan Freeway Management System (CMFMS) Effectiveness Study. Part 2. The After Study.
作者：	coifman, b. a.
关键词：	performance measures, evaluation, loop detectors, ramp metering, traffic monitoring, transportation safety, urban areas
摘要：	A Freeway Management System (FMS) employs various tools to manage a freeway to increase throughput and reduce delay without additional lanes. The FMS acquires data from the roadway and process these data to identify and respond to problems. If some aspects of the data are unreliable, then the response decisions will likely be faulty. This study evaluates the performance of the first phase of the Columbus Metropolitan Freeway Management System (CMFMS) along roughly 14 miles (22.5 km) of I-70 and I-71. The system became operational at the end of 2001. The tools developed and the evaluation are intended to both provide a better understanding of the operation of the facility and to help guide future investments in the CMFMS and other FMSs. The initial objective of this study was to evaluate the performance of the CMFMS. In the course of the evaluation this effort developed calibration tools and performance measures that should also prove useful for ongoing operations. The study specifically develops a suite of performance monitoring tools both to assess the performance of instrumented freeways and the reliability of the surveillance system. It also provides a comprehensive overview of the given traffic monitoring system for practitioners, allowing them to optimize the system. In the course of this work we integrated information from many sources to meet multiple objectives for system management and monitoring. Although presented in the context of the Columbus system, the tools should be generalizable to most freeway surveillance systems. / NOTE:Final rept. 1 Feb 04-31 Mar 06.
总页数：	u0708；373p
报告类型：	科技报告