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刚被Building and Environment接收的一篇文章
基于数字图像处理方法的行人微观运动特征实验研究(doi: 10.1016/j.buildenv.2010.03.015)
Building and Environment
Volume 45, Issue 10, October 2010, Pages 2160-2169
Experimental Study on Microscopic Moving Characteristics of Pedestrians in Built Corridor Based on Digital Image Processing
J. Ma1,2, W.G. Song1,, Z.M. Fang1, S.M. Lo2, G.X. Liao1
Abstract: Experiments of moving characteristics of Chinese pedestrians in a built corridor were conducted. Pedestrians’ trajectories were first extracted with digital image processing method and then mapped into real space coordinates by adopting a direct linear transformation approach. Moving characteristics of single pedestrian, interaction between pedestrian and the built corridor, and also interaction between pair pedestrians were analyzed and compared with those of the experiments with French pedestrians. It is found that the average relaxation time of the Chinese pedestrians is 0.714s, and the mean free speed is
Keywords: direct linear transformation; pedestrian traffic; evacuation; pedestrian interaction; social force
我们发现行人在与其他行人相互作用时,其他行人对目标行人的作用分三种:当目标行人的左前方出现了其他行人,那么其他行人对目标行人的影响是使其向右偏向;而目标行人右前方出现了其他行人,那么其他行人对目标行人的作用是使目标行人有左行的偏向;如果其他行人出现在目标行人的正前方,那么其对目标行人的作用是使其减速前选择左前或右前偏向。并且,这种偏向性在中国人群中表现为右行的偏向。由于个体体型及可以接受的与他人的最小空间距离等影响,行人动力学模型中需要考虑不同的文化差异造成的影响:需要根据不同地区,不同人群选择或者修正模型以期获得符合实际行人运动的结果。
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