改进的城市人行道双向行人流元胞自动机模型  

Improved Cellular Automaton Model For Urban Walkway Bi-directional Pedestrian Flow

作　　者：王涛[1] 陈峻[1] 吴靖[1] 

机构地区：[1]东南大学交通学院,江苏南京210096

出　　处：《现代交通技术》2010年第1期67-70,共4页Modern Transportation Technology

基　　金：国家高技术研究发展计划(2008AA11Z201);十一五国家科技支撑计划(2006BAJ18B01)

摘　　要：为了更好地描述城市人行道双向行人流的交通运行特性,为步行交通服务,在考虑行人前进、换道、位置交换、侧向前进、后退等这些常见行为的基础上,利用Moore邻域的方法,结合行人运动过程中呈现的智能、灵活、复杂等特点给出行人运动规则,建立改进的城市人行道双向行人流元胞自动机模型。通过计算机模拟考察位置交换、侧向前进行为对模型的影响,并对模拟给出的双向行人流速度、流量等参数进行讨论。结果表明,位置交换、侧向前进的引入使模型对行人行为的考虑更加全面;提出的模型在模拟高密度的双向行人流方面有很好的适应性,能够给出合理的双向行人流交通运行参数。In order to describe traffic operation characteristics of bi-directional pedestrian flow in urban pedestrian walkways and work for walking, authors proposed an improved cellular automaton bi-directional pedestrian flow model. This model takes into account many basic pedestrian behaviors,forward move,side stepping,position exchange, lateral-move and step back,and,using Moore neighborhood method,provides regulations of pedestrian movement combining with the characteristics of walking process ,for instance, intelligent, flexible and complicated.With computer simulation,authors studied the influence of position exchange and lateralvmove on the model,the parameters of bi-directional pedestrian flow such as velocity and volume were discussed also.The results demonstrated that position exchange and lateral-move make the pedestrian behavior more comprehensive, the model could be better applied to simulate the high-density bi-directional pedestrian flow and provided reasonable traffic operation parameters of bi-directional pedestrian flow.

关 键 词：双向行人流 元胞自动机模型 Moore领域方法 位置交换 侧向前进 

分 类 号：U491.112[交通运输工程—交通运输规划与管理]