交通运输系统工程与信息 ›› 2005, Vol. 5 ›› Issue (5): 121-135 .

• 交通科学与工程 • 上一篇    

基于行程时间可靠性的车辆优化调度

林兴强1,陈驰2,陈景新1,任爱珠2   

  1. 1.香港理工大学土木及结构工程学系,香港;2.清华大学土木工程系,北京 100084
  • 收稿日期:2005-04-18 修回日期:1900-01-01 出版日期:2005-10-20 发布日期:2005-10-20

Optimizing Vehicle Fleet Management with
Travel Time Reliability Constraint

William H.K.Lam1,Chi Chen2,K.S.Chan1,Ai-Zhu Ren2   

  1. 1.Department of Civil and Structural Engineering,Hong Kong Polytechnic University, Hong Kong,China;
    2. Department of Civil Engineering,Tsinghua University,Beijing 100084, China
  • Received:2005-04-18 Revised:1900-01-01 Online:2005-10-20 Published:2005-10-20

摘要: 行程时间的不确定性是影响货运车队路径选择的一个重要因素,特别是对于要求货物准时送达的配送任务(例如商品混凝土的配送),提出了在车辆调度中考虑由拥挤路段交通流量波动引起的行程时间不确定性的方法,建立了考虑行程时间可靠性要求的车辆优化调度数学模型,给出了相应的启发式算法,通过算例介绍了该模型和算法的应用。结果表明配送总成本随行程时间可靠性要求的提高而增加。

关键词: 车辆调度, 运输问题, 行程时间可靠性

Abstract:

Although uncertainty on travel time is an important aspect of routing for many freight carriers, the existing works on goods vehicle fleet management problem do not take into account the uncertainty on travel time resulting from the fluctuations of traffic flows on congested roads in urban road network.This paper introduces the constraint of the travel time reliability into the goods vehicle fleet management problem particularly for the just-in-time delivery of goods such as the ready-mixed concrete.The mathematical model formulation of the reliability-constrained vehicle fleet management problem is presented together with the heuristic solution algorithm. An example network is uesed to illustrate the applications of the proposed model and solution algorithm.It was found that the total travel time of goods vehicle fleet is increased when the required travel time reliability is increased.

Key words: fleet management, transportation problem, travel time reliability