Investigating the influence of herd effect on the logit stochastic user equilibrium problem

IF 8.3 1区 工程技术 Q1 ECONOMICS
Bojian Zhou , Shihao Li , Min Xu , Hongbo Ye
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引用次数: 0

Abstract

In traditional traffic equilibrium models, travelers typically rely on link flow information to estimate link/route costs. However, an often-overlooked aspect in prior research is that travelers can easily acquire information about the route choices of other travelers within the same OD pair. The presentation of route flow information, combined with the influence of travelers’ herd behavior, results in novel and intriguing conclusions distinct from conventional equilibrium models. Specifically, this study demonstrates that by considering the influence of the herd effect in route choice within the stochastic user equilibrium model, it is possible to address three critical problems that remain inadequately resolved in the literature: (1) The stability of stochastic user equilibrium (SUE) in the presence of route flow information. (2) The existence of meaningful link tolls capable of steering the SUE flow pattern toward system optimum (SO). (3) The design of a trial-and-error congestion pricing scheme with disequilibrium observed network flow patterns. To tackle these problems, we present a logit SUE flow evolution process with herd effect and propose a corresponding trial-and-error congestion pricing scheme. Rigorous proofs of related convergence theorems will be provided. The findings of this study support the assertion that “herd effect can offset travelers’ perception errors”, carrying significant policy implications for leveraging herd effect in the design of navigation software and congestion pricing strategies.

研究羊群效应对对数随机用户均衡问题的影响
在传统的交通平衡模型中,出行者通常依靠链路流量信息来估算链路/路线成本。然而,以往研究中经常忽略的一点是,旅行者可以很容易地获取同一OD对中其他旅行者的路线选择信息。线路流量信息的呈现,再加上旅行者从众行为的影响,得出了有别于传统均衡模型的新颖而有趣的结论。具体来说,本研究表明,通过在随机用户均衡模型中考虑羊群效应对路线选择的影响,可以解决文献中仍未充分解决的三个关键问题:(1)存在路线流量信息时随机用户均衡(SUE)的稳定性。(2) 是否存在有意义的链接收费,能够引导 SUE 流量模式达到系统最优(SO)。(3) 在观察到网络流量模式不平衡的情况下,设计试错式拥堵定价方案。为解决这些问题,我们提出了具有羊群效应的对数 SUE 流量演化过程,并提出了相应的试错式拥堵定价方案。我们还将提供相关收敛定理的严谨证明。本研究的结果支持了 "羊群效应可以抵消旅行者的感知误差 "这一论断,对于在导航软件和拥堵定价策略设计中利用羊群效应具有重要的政策意义。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
16.20
自引率
16.00%
发文量
285
审稿时长
62 days
期刊介绍: Transportation Research Part E: Logistics and Transportation Review is a reputable journal that publishes high-quality articles covering a wide range of topics in the field of logistics and transportation research. The journal welcomes submissions on various subjects, including transport economics, transport infrastructure and investment appraisal, evaluation of public policies related to transportation, empirical and analytical studies of logistics management practices and performance, logistics and operations models, and logistics and supply chain management. Part E aims to provide informative and well-researched articles that contribute to the understanding and advancement of the field. The content of the journal is complementary to other prestigious journals in transportation research, such as Transportation Research Part A: Policy and Practice, Part B: Methodological, Part C: Emerging Technologies, Part D: Transport and Environment, and Part F: Traffic Psychology and Behaviour. Together, these journals form a comprehensive and cohesive reference for current research in transportation science.
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