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原文传递 EVALUATING THE VALUE OF INFORMATION AVAILABLE IN ITS.

题名：	EVALUATING THE VALUE OF INFORMATION AVAILABLE IN ITS.
作者：	Staats-RC
关键词：	INFORMATION-; INTELLIGENT-TRANSPORTATION-SYSTEMS; ADVANCED-SYSTEMS; TRAFFIC-MANAGMENT; PREDICTIONS-; ROUTING-; TRAFFIC-SIGNALS; ALGORITHMS-; SIMULATIONS-; TRAFFIC-CONGESTION; QUEUEING-MODELS; SIGNAL-CONTROL; TRAFFIC-PATTERNS; INCIDENTS-; TRAFFIC-DENSITY; TRAFFIC-FLOW
摘要：	This paper is a survey of results by the author on an integration of predictive routing information available under an Intelligent Transportation System (ITS) with an Advance Traffic Management System (ATMS) scheme. A contribution of this research is a suite of models which is currently being used in ITS evaluations including: the Lin-Sarkar-Statts (LS3) traffic simulator; a traffic signal timing algorithm which optimizes signal settings based on predictive routing information called the Predictive Routing Information Signal Timing INtEgration (PRISTINE) model; and an optimized Third Generation Control (3GC) signal timing model. Both PRISTINE and 3GC integrate with LS3, allowing the signal settings within the simulation to be modified dynamically. The first portion of this paper develops the theoretical basis for PRISTINE model. PRISTINE explicitly uses the predictive routing information available under ITS as well as considering the effects of queuing and congestion and compensating for them in setting the traffic signal control plan. The paper presents a new methodology for using spanning trees to determine the offsets in the network. The paper shows a Queue Effects Model (QEM) that explicitly considers the effects of bulk arrivals on average delay and probability of stopping at an intersection. The Queue Effects Model requires only the average arrival rate and the first two moments of platoon size, all of which can be collected using existing technology. The Queue Effects and spanning tree models form the theoretical basis for PRISTINE. The second portion of this paper describes the surge situation. The surge situation arises when there is a sudden shift in traffic patterns or densities such as occur when a sporting event lets out or there is a traffic incident. PRISTINE offers substantial savings as measured by average delay per vehicle in cases where there were either sudden shifts in traffic flow or dominant directions of flow in the network.
总页数：	Conference Title: Merging the Transportation and Communications Revolutions. Abstracts for ITS America Seventh Annual Meeting and Exposition. Location: Washington, D.C. Sponsored by: ITS America. Held: 19970602-19970605. 1997. pp29
报告类型：	科技报告