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A Dynamic Spatial Price Equilibrium Model of Integrated Urban Production-Transportation Operations Considering Freight Delivery Tours

机译：考虑货运行程的城市生产与运输一体化的动态空间价格均衡模型

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摘要

This paper introduces a dynamic spatial price equilibrium model that estimates urban freight-related flows for integrated producer-carrier operations that compete in a market where a generic commodity is traded. The model is applicable to cases where suppliers compete in a market by producing a commodity that is delivered to customers by means of delivery tours. The model obtains the patterns of commodity flows, production levels, and delivery tours that maximize economic welfare. The model is then reinterpreted as a Nash equilibrium model, where a set of suppliers deploys strategies involving production and delivery decisions to maximize profits, that is then solved with a heuristic approach that decomposes the interrelated decisions into how much to produce, how best to deliver to customers, and how much to charge for the cargo. Once the suppliers make these decisions, a market-clearing mechanism determines the amount of supplies that the various consumer nodes purchase from the suppliers. At this stage, the suppliers readjust their market strategies in anticipation of the next time period. The process ends when equilibrium is reached. Three different dynamics of the suppliers' decisions on production levels are tested to gain insight into how efficiently each helps to reach the equilibrium solutions. By developing a model that explicitly considers delivery tours, the paper makes a significant contribution to the fields of spatial price equilibrium and freight demand modeling.
机译：本文介绍了一种动态的空间价格均衡模型，该模型可为与生产商-承运商的综合运营相关的城市货运相关流量进行估算，这些运营商在通用商品交易市场中竞争。该模型适用于供应商通过生产通过送货游览向客户交付的商品在市场上竞争的情况。该模型获取商品流，生产水平和交货行程的模式，以最大限度地提高经济福利。然后将该模型重新解释为Nash均衡模型，在该模型中，一组供应商会部署涉及生产和交付决策的策略以使利润最大化，然后通过启发式方法进行求解，该方法将相关的决策分解为生产多少，如何最好地交付给客户，以及收取多少费用。一旦供应商做出了这些决定，市场清理机制就会确定各个消费者节点从供应商那里购买的供应量。在此阶段，供应商会在下一时间段内调整其市场策略。当达到平衡时，该过程结束。测试了供应商在生产水平上做出决定的三种不同动力，以洞察每种供应商如何有效地达到均衡解决方案。通过开发一个明确考虑送货行程的模型，本文对空间价格均衡和货运需求建模领域做出了重大贡献。

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  • 来源
    《Transportation Science》 |2016年第2期|489-519|共31页
  • 作者

    Holguin-Veras Jose; Xu Ning; Jaller Miguel; Mitchell John;

  • 作者单位

    Rensselaer Polytech Inst, Dept Civil & Environm Engn, Troy, NY 12180 USA|Rensselaer Polytech Inst, VREF Ctr Excellence Sustainable Urban Freight Sys, Troy, NY 12180 USA|Rensselaer Polytech Inst, Ctr Infrastruct Transportat & Environm, Troy, NY 12180 USA;

    Virgin Amer, Revenue Management, Burlingame, CA 94010 USA;

    Univ Calif Davis, Dept Civil & Environm Engn, Davis, CA 95616 USA;

    Rensselaer Polytech Inst, Dept Math, Troy, NY 12180 USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    freight demand modeling; freight tours; spatial price equilibrium;

    机译：货运需求建模;货运旅行;空间价格均衡;

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