基于行人过街场景的社会力模型改进研究  

The Study of Modified Social Force Model Based on Crossing Behavior

作　　者：李慧颖 梁启宇 万千[1,2] 张腾 

机构地区：[1]广西华蓝设计(集团)有限公司规划院交通规划所,南宁530011 [2]东南大学交通学院江苏省交通规划与管理重点实验室,南京210096 [3]湖北省交通规划设计研究院第八勘察设计室,武汉430051

出　　处：《交通信息与安全》2015年第1期29-34,共6页Journal of Transport Information and Safety

基　　金：国家自然科学基金项目(批准号:51278101);广西科技攻关计划项目(批准号:桂科攻1377001-10)资助

摘　　要：为真实有效地模拟行人过街现象,发挥社会力模型潜在的应用价值,文中以经典社会力模型为基础,设计3组可控实验,运用手动轨迹跟踪器,提取行人过街行走轨迹,从而对经典社会力模型中的重要参数进行标定研究。通过将模型仿真得到的过街行人流基本图与经典社会力模型以及实测数据进行对比分析,结果表明,改进模型有效减少行人重叠现象,在流量达到0.5人/(s·m)后行人密度比经典社会力模型降低1人/m2左右,贴近实测数据,更好地描述行人过街的现实情况。运用这一研究成果能够更好地研究行人过街内在机理,挖掘模型在行人过街设施设计等工程应用中的价值。To simulate the crossing behavior effectively and explore the potential value of the social force model,three control experiments were carried to extract major parameters in this model by manual tracker.The result shows that the modified model effectively reduce pedestrian-overlapping phenomenon.When the pedestrian flow is over 0.5 person/（s·m）,the pedestrian density in modified social force model is 1person/m^2 lower than that in the traditional social force model.This indicates that simulation result is closer to the reality.The modified model describes crossing behavior better.Therefore,the conclusion is that the internal mechanism of crossing behavior can be better described and the effectiveness of the social force model in supporting pedestrian-crossing facility design can be better by developing the model.

关 键 词：交通工程 行人过街模拟 社会力模型 参数研究 参数提取 

分 类 号：U491.1[交通运输工程—交通运输规划与管理]