Fundamental diagrams for pedestrian flows in a channel via an extended social force model
Fundamental diagrams for pedestrian flows in a channel via an extended social force model
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DOI：
10.1007/s42241-018-0084-8
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发表时间：
2018-08
影响因子：
2.5
通讯作者：
Yan-fang Wei;Dong-kai Lan;L. Dong
中科院分区：
文献类型：
--
作者：
Yan-fang Wei;Dong-kai Lan;L. Dong
本文应用扩展的社会力模型研究了行人流的基本图。在该模型中，同时考虑了静态地板场和视场。然后，每个行人可以根据全局和局部信息确定他/她期望的步行方向。在周期性边界条件下，数值计算得到了基本图。结果发现，在单向流动的情况下，特别是在中等密度范围内，基本图显示出良好的协议与实测数据。然而，双向流动情况下的基本图给出了比测量数据更大的值。在一定的密度范围内，双向磁通量大于单向磁通量。结果表明，在某些情况下，双向流动可能比单向流动更有效。模型中车道形成的过程是相当快的。给出了三种典型情况下的流动模式，以展示一些实际应用。
In this paper, an extended social force model was applied to investigate fundamental diagrams of pedestrian flows. In the presented model, both the static floor field and the view field were taken into account. Then each pedestrian can determine his/her desired walking directions according to both global and local information. The fundamental diagrams were obtained numerically under periodic boundary condition. It was found that the fundamental diagrams show good agreement with the measured data in the case of unidirectional flow, especially in the medium density range. However, the fundamental diagram for the case of bidirectional flow gave larger values than the measured data. Furthermore, the bidirectional flux is larger than the unidirectional flux in a certain density range. It is indicated that the bidirectional flow may be more efficient than the unidirectional flow in some cases. The process of lane formation is quite quick in the model. Typical flow patterns in three scenarios were given to show some realistic applications.