考虑同伴群动态交流分组的行人仿真模型研究

发布时间：2018-04-10 11:51

本文选题：城市交通 + 行人仿真　；参考：《交通运输系统工程与信息》2017年02期

【摘要】：朋友、家人等社会群体结伴出行的同伴群在行人流中常占有较高比例.由于交流需求,同伴群趋于肩并肩行走以横向成排或接近浅V型的形态前进.在现有研究中,基于社会力的同伴群行人微观仿真模型对这一现象的描述最符合实际.本文观测发现,随着人流密度的增加或同伴群成员数量增多,同伴群通常动态呈现前后分组、横向成排空间形态,这是每个同伴群成员为寻求一个合适的行走位置,对满足交流需求和降低前进阻力权衡决策后呈现的自组织现象.本文提出动态交流分组模型对同伴群成员个体决策机理进行刻画,在此基础上,通过仿真实验分析同伴群对行人流动力学特性产生的影响.仿真研究结果表明,模型较好重现了同伴群随密度和人数增加的动态分组现象;同伴群的存在会降低行人流速度,但其影响强度随人流密度的增加而减弱;同伴群动态交流分组模型的引入会提升仿真行人流的通行效率,使之更加接近真实行人流的运动特性.
[Abstract]:Friends, family and other social groups travel together with their peers in the pedestrian flow often occupy a high proportion.Due to communication needs, peer groups tend to walk side by side in horizontal rows or near shallow V shape.In the present research, the description of this phenomenon in the peer-group pedestrian simulation model based on social force is the most practical.In this paper, it is found that with the increase of the density of people or the number of members of peer group, the peer group usually presents a dynamic grouping, which is a lateral spatial form, which is a suitable walking position for each peer group member.Self-organization phenomenon after balancing decisions to meet communication needs and reduce forward resistance.In this paper, a dynamic exchange grouping model is proposed to describe the individual decision-making mechanism of peer group members. Based on this, the influence of peer group on the dynamic characteristics of pedestrian flow is analyzed through simulation experiments.The simulation results show that the dynamic grouping phenomenon of peer group with the increase of density and number is well reproduced, the presence of peer group will reduce the speed of pedestrian flow, but its influence intensity will weaken with the increase of density of passenger flow.The introduction of peer group dynamic communication grouping model will improve the efficiency of simulating pedestrian flow and make it more close to the movement characteristics of real pedestrian flow.
【作者单位】：昆明理工大学交通工程学院;昆明轨道交通集团有限公司;洛阳市规划建筑设计研究院有限公司;
【基金】：国家自然科学基金(51168023)~~
【分类号】：U491.226

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