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原文传递 A Perimeter Control Strategy for Oversaturated Network Preventing Queue Spillback

题名：	A Perimeter Control Strategy for Oversaturated Network Preventing Queue Spillback
正文语种：	中文
作者：	Yishun Li Jianmin Xu Lvou Shen
作者单位：	epartment of Traffic Information Engineering and ontrol,South hina University of Technology,No.381 of Wushan,Tianhe istrict,Guangzhou,510640, hina
关键词：	Traffic control Oversaturated network Queue Spillback
摘要：	A perimeter signal control strategy is investigated for a congested network.First, an algorithm is proposed to determine the proportion of traffic should be held outside during peak periods at each entry link, which is achieved by properly allocating green time for those movements.The optimization goal of this network control strategy is maximizing capacity utilization of the network, also preventing queue spillback.Lane-group-based method is used to model the traffic dynamics along arterials.Furthermore, the phase sequence and offset are optimized using an imbedded Genetic Algorithm.The signal timing outputs of this strategy are then implemented in TRANSYT-7F, and the results are compared with the outputs optimized through the TRANSYT-7F itself optimization process, which shows that the proposed strategy presents better performance, and more efficient for congested networks.The perimeter control strategy could be implemented for oversaturated networks to relieve the excessive congestion problems, particularly for those metropolitans in China.
会议日期：	201111
会议举办地点：	北京
会议名称：	2011年全国博士生学术论坛——交通运输工程
出版日期：	2011-10-31
母体文献：	2011年全国博士生学术论坛——交通运输工程论文集