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原文传递 Ramp Metering: A Review of the Literature; Technical rept. 1997.12-1998.12

题名：	Ramp Metering: A Review of the Literature; Technical rept. 1997.12-1998.12
作者：	Arnold, E. D.
关键词：	Vehicular traffic control; Freeways; Travel time; Velocity; Fuel consumption; Exhaust emissions; Automobile; Urban areas; Traffic safety; Traffic flow
摘要：	Ramp metering is an effective, viable, and practical strategy used to manage freeway traffic. It is a proven freeway management technique as various forms of ramp control have been in place since the 1960s in the Chicago, Detroit, and Los Angeles areas. Due in part to the success of these early applications, ramp metering has received increased emphasis in recent years under the umbrella of advanced traffic management systems (ATMS), a component of intelligent transportation systems (ITS). ITS America reports that there are currently more than 40 ATMS deployed, under construction, or in the planning stage in the U.S. by state transportation agencies. The future of ramp metering is also in the ITS context. Integrated and interface with local street system control and other advanced ITS traffic control systems such as advanced vehicle control systems, dynamic route guidance, and advanced traveler information systems are the latest in ramp metering applications. Ramp meters are in place and working effectively on segments if I-395 and I-66 in Northern Virginia. The Virginia Department of Transportation is very much interested in the feasibility of implementing ramp metering on other segments of freeways throughout the state. Accordingly, the purpose of this study was to review and synthesize the existing literature on ramp metering. Specific topics included in the review were: impacts of ramp metering, including its advantages/benefits and disadvantages/disbenefits; warrants, criteria, and guidelines for ramp metering; metering rates.
总页数：	34p
报告类型：	科技报告