The effect of overtaking behavior on unidirectional pedestrian flow
The effect of overtaking behavior on unidirectional pedestrian flow
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DOI：
10.1016/j.ssci.2011.12.020
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发表时间：
2012-10
期刊：
影响因子：
6.1
通讯作者：
J. Yuen;E. Lee
中科院分区：
文献类型：
--
作者：
J. Yuen;E. Lee
提出了一种可用于模拟常规单向行人流的超车行为模型。所有行人都有能力根据他们想要的速度和位置来决定是否超越其他行人。虽然现有的模型如元胞自动机模型、格子气体模型、社会力模型等都可以用来预测疏散性能，但这些模型中的大多数要么计算效率低下，要么没有考虑到移动人群中人类行为的一些关键因素。此外，这些模型使用从实验中开发的经验公式或机械系统类比来确定运动决策。这些模型模拟的行人流态可能与实际情况有较大偏差。在现实中，行人以不同的速度行走，而步行速度较高的行人习惯于以较低的步行速度超越其他行人，本文旨在将这一行为模拟为赫宾等人提出的原始社会力模型。并不反映这种集体行人行为的模式。在本文中，我们提出了修正的社会力量模型，以反映超车行为是如何在例行公事中运作的。并将改进后的社会力模型与摄像机采集的真实数据进行了比较，验证了改进后的社会力模型可以合理地模拟行人的超车行为。
We present a model of overtaking behavior that can be used to simulate unidirectional pedestrian flow in routine. All pedestrians have the ability to determine whether or not to overtake other pedestrians according to their desired velocity and position. Although existing models such as cellular automata models, lattice gas models, social force models, etc., can be used to predict evacuation performance, most of these models are either computationally inefficient or do not account for some crucial elements of human behavior in a moving crowd. Furthermore, these models use either empirical equations developed from experiments or mechanical system analogies to determine movement decisions. The pedestrian flow patterns simulated by these models may deviate significantly from reality. In reality, pedestrians walk at different velocities and pedestrians with a higher walking velocity are accustomed to overtaking other pedestrians with a lower walking velocity and this paper aims to mimic this behavior as the original social force model developed by Helbing et al. does not reflect this pattern of collective pedestrian behavior. In this paper, we propose modifications of the social force model that reflects how overtaking behavior operates in routine. The comparison of the pedestrian flow pattern between the original social force model and the modified social force models with the real data collected by the camcorder is also performed in order to demonstrate our modified social force model can be used to achieve reasonable simulations of overtaking behavior among pedestrians.