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首页> 外文期刊>Promet-traffic & transportation >TRAFFIC PARADOX UNDER DIFFERENT EQUILIBRIUM CONDITIONS CONSIDERING ELASTIC DEMAND
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TRAFFIC PARADOX UNDER DIFFERENT EQUILIBRIUM CONDITIONS CONSIDERING ELASTIC DEMAND

机译：考虑弹性需求的不同均衡条件下的交通悖论

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摘要

Traffic paradox is an important phenomenon which needs attention in transportation network design and traffic management. Previous studies on traffic paradox always examined user equilibrium (UE) or stochastic user equilibrium (SUE) conditions with a fixed traffic demand (FD) and set the travel costs of links as constants under the SUE condition. However, traffic demand is elastic, especially when there are new links added to the network that may induce new traffic demand, and the travel costs of links actually depend on the traffic flows on them. This paper comprehensively investigates the traffic paradox under different equilibrium conditions including the user equilibrium and the stochastic user equilibrium with a fixed and elastic traffic demand. Origin-destination (OD) mean unit travel cost (MUTC) has been chosen as the main index to characterize whether the traffic paradox occurs. The impacts of travelers' perception errors and travel cost sensitivity on the occurrence of the traffic paradox are also analyzed. The conclusions show that the occurrence of the traffic paradox depends on the traffic demand and equilibrium conditions; higher perception errors of travelers may lead to a better network performance, and a higher travel cost sensitivity will create a reversed traffic paradox. Finally, several appropriate traffic management measures are proposed to avoid the traffic paradox and improve the network performance.
机译：交通悖论是一种重要现象，需要在运输网络设计和交通管理中关注。以前关于交通悖论的研究总是通过固定的交通需求（FD）检查用户均衡（UE）或随机用户平衡（SUE）条件，并将链接的旅行成本设置为SUE条件下的常数。但是，交通需求是弹性的，特别是当添加到可能引起新的交通需求的网络中添加新的链接时，链接的旅行费用实际上取决于它们的流量。本文全面调查了在不同平衡条件下的交通悖论，包括用户平衡和随机用户平衡，具有固定和弹性的交通需求。原始目的地（OD）平均单位旅行成本（MUTC）已被选为主要指数，以表征流量悖论是否发生。还分析了旅行者的感知误差和旅行成本敏感性对交通悖论的影响。结论表明，交通悖论的发生取决于交通需求和均衡条件;旅行者的更高的感知错误可能会导致更好的网络性能，并且更高的旅行成本敏感性将创建一个逆转的交通悖论。最后，提出了若干适当的交通管理措施，以避免交通悖论并提高网络性能。

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  • 来源
    《Promet-traffic & transportation》 |2019年第1期|1-9|共9页
  • 作者

    QIANG TU; LIN CHENG; DAWEI LI; JIE MA; CHAO SUN;

  • 作者单位

    School of Transportation Southeast University Si Pai Lou #2 Nanjing 210096 China;

    School of Transportation Southeast University Si Pai Lou #2 Nanjing 210096 China;

    School of Transportation Southeast University Si Pai Lou #2 Nanjing 210096 China Jiangsu Key Laboratory of Urban ITS Southeast University Si Pai Lou #2 Nanjing 210096 China Collaborative Innovation Center of Modern Urban Traffic Southeast University Si Pai Lou #2 Nanjing 210096 China;

    School of Transportation Southeast University Si Pai Lou #2 Nanjing 210096 China;

    School of Automotive and Traffic Engineering Jiangsu University Xuefu Road #301 Zhengjiang 212013 China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    traffic paradox; user equilibrium; stochastic user equilibrium; fixed demand; elastic demand; method of successive average;

    机译：交通悖论;用户均衡;随机用户均衡;固定需求;弹性需求;连续平均方法;

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