基于离散势能场的行人仿真模型研究  

Pedestrian Simulation Model based on Discrete Potential Field

作　　者：沙云飞[1] 史其信[1] 

机构地区：[1]清华大学交通研究所,北京100084

出　　处：《公路工程》2009年第2期153-156,共4页Highway Engineering

摘　　要：提出了基于离散势能场及精细网格划分的行人仿真模型,区别于连续势能场,提出在最小元胞尺寸为10 cm×10 cm的网格划分,利用离散势能场描述目的地、障碍物以及其他行人对行人运动的影响。给出了单人决策和行人仿真的流程。该模型能够将基于全场景的宏观层面上的路径规划决策和基于邻域的微观层面上的单步决策有机地结合在一起。采用离散势能场机制描述各种因素对行人行为的影响,可以灵活地增加考虑的因素,论文给出了在单项通道内的行人仿真算例,并与观测结果进行了对比。This paper presents a pedestrian simulation model based on artificial potential field and small grid. The fine grid division method divides pedestrian space into 10 cm by lOcm grids. The potential field is used to define the influence of the major influential factors considered in this paper, which include the destination, obstacles, and other pedestrians. This paper combined the macroscopic route planning in the strategic decision-making and microscopic decisions （e. g. avoiding other pedestrians） in the field. This research method could consider different factors with great flexibility, which provides significant potentials for further expansion. Simulation result of unidirectional corridor is compared with the observation data from relative literature.

关 键 词：人工势能场 精细网格 行人仿真 

分 类 号：U419.25[交通运输工程—道路与铁道工程]