%0 Journal Article
%T The influence of U-turn movement on the dynamics of traffic flow<br>城市道路U形转向交通流特性模拟分析
%A Guo Hong-Wei
%A Gao Zi-You
%A Xie Dong-Fan
%A <br>郭宏伟
%A 高自友
%A 谢东繁
%J 物理学报
%D 2011
%I 
%X U-turn movement is a common form of traffic organization in urban streets. A traffic flow model for U-turn movement based on the NaSch cellular automaton model is proposed to simulate and analyze the dynamics of U-turn movement. The results indicated that the U-turn movement has significant effect on the traffic flow, and it is a typical bottleneck. The U-turn movement can cause phase transition at small probability of vehicle generation and the critical flow also decreases obviously. The system with two U-turn movement is different from the system with one U-turn movement in traffic features such as phase transition and critical flux. The one U-turn system has a good performance. It is suggested that the system with a couple of U-turns may help mitigate the negative effect of U-turn movement in traffic planning and management.
%K traffic flow
%K cellular automaton
%K U-turn movement
%K phase transition<br>交通流
%K 元胞自动机
%K U形转向
%K 相变
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=B0CEEB0F864CEF71CE5F3F718AB14219&yid=9377ED8094509821&vid=BFE7933E5EEA150D&iid=94C357A881DFC066&sid=10DD9C2524C2908D&eid=92DE343A8428AA81&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=19