论文标题
多远外撤离中的可变指导策略：追求平衡的行人密度
Variable guiding strategies in multi-exits evacuation: Pursuing balanced pedestrian densities
论文作者
论文摘要
疏散助手及其指导策略在多外观的行人疏散中起着重要作用。为了研究指导策略对疏散效率的影响，我们提出了一个由力量驱动的细胞自动机模型，该模型具有可调节的指导景点，该模型由位于出口中的疏散助手施加。在此模型中，每位疏散助手试图通过发送可量化的指南信号来吸引疏散空间中的行人到自己的出口，这可以根据出口附近的行人密度值进行调整。研究了追求平衡行人密度的指导策略的影响。据观察，不平衡的行人分布主要是由行人之间相互景点产生的滚雪球效应产生的，并且可以通过控制出口周围的行人密度来抑制。我们还揭示了一个有趣的事实，即鉴于目标密度值，部分区域（靠近出口）的密度控制可能会产生全球效果，以平衡其余地区的行人，从而提高疏散效率。我们的发现可能有助于在现实的疏散过程中设计有效的指导策略，从而给予新的见解。
Evacuation assistants and their guiding strategies play an important role in the multi-exits pedestrian evacuation. To investigate the effect of guiding strategies on evacuation efficiency, we propose a force-driven cellular automaton model with adjustable guiding attractions imposed by the evacuation assistants located in the exits. In this model, each of the evacuation assistants tries to attract the pedestrians in the evacuation space towards its own exit by sending a quantifiable guiding signal, which may be adjusted according to the values of pedestrian density near the exit. The effects of guiding strategies pursuing balanced pedestrian densities are studied. It is observed that the unbalanced pedestrian distribution is mainly yielded by a snowballing effect generated from the mutual attractions among the pedestrians, and can be suppressed by controlling the pedestrian densities around the exits. We also reveal an interesting fact that given a moderate target density value, the density control for the partial regions (near the exits) could yield a global effect for balancing the pedestrians in the rest of the regions and hence improve the evacuation efficiency. Our findings may contribute to give new insight into designing effective guiding strategies in the realistic evacuation process.
