Automaton Model with Variable Cell Size for the Simulation of Pedestrian Flow
作者单位：Technische Universitt BerlinFakultt ⅡInstitut für Mathematik Sekr.MA 6-4Strabe des 17.Juni 13510623 BerlinGermany
会议名称：《The Seventh International Conference on Information and Management Sciences》
会议日期：2008年
学科分类：08[工学] 082303[工学-交通运输规划与管理] 082302[工学-交通信息工程及控制] 0823[工学-交通运输工程]
关 键 词：cellular automaton pedestrian flow simulation variable cell size
摘 要：正The simulation of pedestrian flow is an important issue in many modem traffic systems and *** planning and control of pedestrian flow is crucial for large buildings,shopping malls,airports,railway stations,cruise ships and ferries,manifestation places,sport stadiums etc., in order that optimal traffic throughput for daily usage can already be guaranteed at the time of *** evacuation scenarios can be considered in this context. Common simulation approaches are either discrete or contin- *** continuous models,which rely on mathematical models originally developed for fluids and gases,are better suited for the modelling of somehow global phenomena, individual aspects are given more consideration in the discrete *** discrete models for pedestrian flow are based on cellular automata,however,traditional cellular automaton models work with a fixed cell *** at any given time,the states of the cells are always well-defined by the automaton’s transition rules,the current simulation object positioned in a grid cell can be considered as the cell state *** view of the original definition of the cellular automaton,we can understand the cell size as the minimal two-dimensional space the simulation objects（***- ans）reserve for themselves *** the current paper, we present a two-dimensional automaton model to simulate pedestrian flow in which the cell size can be dynamically modified in a virtual *** can be easily observed in real world scenarios that the aforesaid minimal but exclusive space a pedestrian takes may beelastic（variable）,espe- cially when pedestrian density and the discrepancy of the flow-in and flow-out rates of the system are given sufficient ***,this virtual flexibility of the cell size is favourable and necessary in the simulation of pedestrian flow where the minimal space required by a pedestrian is not confined to be *** virtual cell size in our model