MaaS模式下城市路网异质出行者逐日流量分配模型  

Day-to-day Traffic Assignment Model of HeterogeneousTravelers in Urban Road Network under MaaS Mode

作　　者：陈玲娟[1] 赵成花 马东方[2] 柳祖鹏[1] CHEN Lingjuan;ZHAO Chenghua;MA Dongfang;LIU Zupeng(College of Automotive and Traffic Engineering,Wuhan University of Science and Technology,Wuhan 430070,China;College of Marine Science,Zhejiang University,Hangzhou 310058,China)

机构地区：[1]武汉科技大学汽车与交通工程学院,湖北武汉430070 [2]浙江大学海洋学院,浙江杭州310058

出　　处：《运筹与管理》2024年第7期137-143,共7页Operations Research and Management Science

基　　金：国家社会科学基金资助项目(20CGL018)。

摘　　要：为研究出行即服务(MaaS)模式下的城市路网异质用户逐日路径选择行为和路网流量分配演变规律,将出行者分为选择MaaS服务的平台用户和自主决策的自由用户。建立了两类用户总量的逐日调整模型、自由用户的逐日选择模型及平台用户的系统最优分配模型,并利用不动点理论分析了模型稳定性。算例结果表明:若流量转移函数连续,则模型存在不动点,路径流量能收敛到稳定状态;异质用户路网能降低总出行时间,但达到稳态所需时间更长;高比例的平台用户路网总出行时间更小,更有利于路网优化;提升路网出行服务水平可以使路网稳定在最优态。To study the day-to-day routing behavior and traffic distribution evolution of heterogeneous users in urban road networks under the Mobility as a Service(MaaS)model,travelers are classified into platform users who select MaaS services and free users who make their own decisions.The travel behaviors of the two types of users are described as follows:(1)During the day-to-day decision-making process,users adjust whether to continue accepting platform scheduling,implying that user attributes change during the day-to-day deduction.(2)Free users seek to maximize their own travel utility and adjust their routes in day-to-day travel.(3)The platform plans and publishes the system path based on pre-trip input from users,ensuring the principle of System Optimal(SO).Under the MaaS model,heterogeneous users decide whether to change their travel mode and routes for the day based on the previous day’s travel outcomes.The changes in user travel decisions lead to shifts in the final distribution state of network traffic,thereby influencing users’travel on the following day.Furthermore,this paper calculates the average travel time for both platform users and free users across all routes and,based on the principle of bounded rationality,defines a threshold where the travel time saved by an alternative exceeds the tolerance level,at which point users may reconsider whether to join the MaaS platform.Thus,based on these tolerance levels,transition probabilities are calculated,a day-to-day adjustment model for the total number of both types of users are established.Similarly,a day-to-day transition model for free users’routes is developed based on the time saved and tolerance values.The day-to-day model distributes the total number of MaaS users to routes following the SO principle,and transforms the path impedance to establish a User Equilibrium(UE)model equivalent to SO.The model’s Frank-Wolfe algorithm solution is also provided.The paper demonstrates the principle of flow conservation in the overall model and uses fixed poin

关 键 词：出行即服务 逐日流量分配模型 异质出行者 系统最优 有限理性 

分 类 号：U491[交通运输工程—交通运输规划与管理]