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原文传递 RAMP METERING STATUS IN NORTH AMERICA. 1995 UPDATE.

题名：	RAMP METERING STATUS IN NORTH AMERICA. 1995 UPDATE.
作者：	Piotrowicz-G%Robinson-J
关键词：	RAMP-METERING%FEASIBILITY-STUDIES%APPLICATION-USE%OPERATIONAL-ANALYSIS%INSTITUTIONAL-FACTORS
摘要：	This document updates a previous report published in September 1989 titled Ramp Metering Status in North America. This update, like the previous report, provides an initial resource for agencies exploring the feasibility of ramp metering. It offers the same straight-forward look at the operational and institutional issues inherent in ramp metering and provides current information on the state of the practice in ramp metering. The report is divided into six sections. The first three parts present a sample of various ramp metering applications in several cities and describe the benefits reported. The fourth section addresses factors that should be considered and some of the capabilities and limitations of ramp metering. In the fifth, guidelines for the implementation of ramp metering are identified. The sixth part presents lessons learned from agencies currently operating ramp metering. The report includes an overview of the status of ramp metering in North America, a list of ramp metering contacts, and a bibliography. Based on the research results, ramp metering has proven to be one of the most cost-effective techniques for improving and maintaining the efficient operation of urban freeways during peak traffic periods. The benefits derived from ramp metering include accident reductions of 24 to 50 percent, increased mainline speeds of 16 to 62 percent, and others. Results from the benefits include consistent commute times, less congestion, and reduced driver frustration.
总页数：	1995/06. pp62
报告类型：	科技报告