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中文摘要：
利用改进的层次域元胞自动机模型，研究了正菱形网格空间中的行人疏散问题．这类网格可以避免行人贴近房间墙壁或障碍物，转移概率考虑了各种逃生受阻因素．数值仿真显示，出口处的行人分布与实验快照展示的行人分布基本相同，疏散时间和出口宽度呈线性关系，行人流率接近实验结果．
英文摘要：
The modified floor field cellular automata model is used to simulate the pedestrian evacuation in rooms which are discretized into squared rhombus cells. This discretization can effectively stop pedestrians to move against walls or obstacles. The pedestrian transition probabilities from one cell to neighbor ceils are computed by considering various factors influencing evacuation. Simulation results show that the pedestrian distribution nearby exit is basically the same as that indicated by the experimental snapshot, the evacuation time increases almost linearly with exit width, and the flow rate from exit is close to the one observed from experiment.
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