自动驾驶环境下交通均衡分配模型及算法  

Model and algorithm of traffic equilibrium assignment in autonomous driving environment

作　　者：刘诗序[1] 贺朝阳 朱建超 王叔雨 王皓宇 LIU Shixu;HE Zhaoyang;ZHU Jianchao;WANG Shuyu;WANG Haoyu(College of Civil Engineering,Fuzhou University,Fuzhou,Fujian 350108,China;Shanghai Tunnel Engineering&Rail Transit Design and Research Institute,Shanghai 200235,China)

机构地区：[1]福州大学土木工程学院,福建福州350108 [2]上海市隧道工程轨道交通设计研究院,上海200235

出　　处：《福州大学学报（自然科学版）》2022年第2期249-257,共9页Journal of Fuzhou University(Natural Science Edition)

基　　金：国家自然科学基金资助项目(71804026)。

摘　　要：研究自动驾驶环境下(autonomous vehicles,AVs)路径选择和停车选择的交通均衡分配.AVs的路径选择和停车选择两个过程,分别对应载人状态(从起点到目的地)和空载状态(从终点到停车场),考虑两种状态的交通流在路段上相互影响,针对路段成本函数Jacobian矩阵对称与不对称的情况,提出相应的模型以及求解算法,并证明算法解满足均衡条件.通过算例分析停车费用的变化对停车需求和路段流量的影响.结果表明:随着中心停车场费用的降低,个人出行成本总体上呈减少趋势,局部波动变化,并且流向该停车场的路段交通量增加,远离该停车场的路段交通量减少.结果还表明,当路段两种状态相互影响程度不同时,其他因素对均衡结果的影响变化趋势大致相同.This paper studies the combined equilibrium problem of autonomous vehicles(AVs)route choice and parking choice in an autonomous driving environment.The two processes of AVs,including route choice and parking choice,correspond to the human-occupied state(from the origin to the destination)and the empty state(from the destination to the parking lot).When the two states of traffic flow influence each other on the link,we propose the corresponding model and solution algorithm for the symmetric and asymmetric Jacobian matrices of the link cost function and prove that the algorithm solution satisfied the principle of equilibrium.An example was used to analyze the impact of changes of parking fees on parking demand and link flow.The results show that with the decrease of parking fee,the individual total travel cost decreases generally with local fluctuations and changes,the traffic flow on the link towards the parking lot increases,and the traffic flow on the link far away from the parking lot decreases.The results also show that when the interaction between the two states of links is different,the influence of other factors on the equilibrium is roughly the same.

关 键 词：交通工程 自动驾驶汽车 均衡分配 路径选择 停车选择 

分 类 号：U491[交通运输工程—交通运输规划与管理]