摘要
本文在考虑行人视野范围的随机偏走格子气模型基础上,引入行人避让行为,提出改进的格子气模型,对轨道交通车站通道内的对向行人流进行仿真研究。模型不仅能体现通道内对向行人的自组织行为,重现行人流分层现象,还可以应用本模型分析通道内行人流堵塞现象形成机理。模拟结果发现,在行人高密度条件下,通道墙壁边沿首先形成堵塞,并逐步向通道中央演化,最后导致整个通道堵塞。仿真模型和分析结果对理解对向行人流的动态演化过程,提高轨道交通车站通道内对向行人流的走行效率有一定帮助。
In order to investigate the characteristics of pedestrian counter flow in bi-directional channel, an improved lattice gas simulation model which considers the view field of pedestrian and the characteristics of pedestrian avoidance behavior is proposed in this paper. The effects of bi-directional pedestrians when they are in the view field of a walker are taken into account in the improved lattice gas model, i.e. walkers tend to follow the leaders in the same direction and avoid conflicts with those walking towards them. Meanwhile, the degree of influence of empty lattice and same directional pedestrians are not the same. The lane formation of pedestrian is well reproduced with the simulation model. Under high density of pedestrian, the jam is easily to form beside the wall firstly, and then expands to the whole channel, for there isn＇t more space for pedestrians exchange location. It is obvious that the simulation model and its result is useful to understand the dynamic evolution process of pedestrian counter flow, and is helpful for raising efficiency of pedestrian counter flow in the channel of subway station.
出处
《综合运输》
2015年第5期61-66,共6页
China Transportation Review
基金
国家重点基础研究发展计划(2012CB725403)
