中文核心期刊
CSCD来源期刊
中国科技核心期刊
RCCSE中国核心学术期刊

重庆交通大学学报(自然科学版) ›› 2014, Vol. 33 ›› Issue (2): 122-125.DOI: 10.3969/j.issn.1674-0696.2014.02.27

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实时路网单车多任务物流配送路径优化

彭 勇,何俊生   

  1. 重庆交通大学 交通运输学院,重庆 400074
  • 收稿日期:2012-06-18 修回日期:2013-05-27 出版日期:2014-04-15 发布日期:2015-01-22
  • 作者简介:彭 勇(1973—),男,重庆人,副教授,博士,主要从事交通运输规划与管理方面的研究。E-mail: pengyong@cquc.edu.cn。

Route Optimization of Multi-Trip Single Vehicle ?ased on Real Time Road Network

Peng Yong,He Junsheng   

  1. School of Traffic & Transportation , Chongqing Jiaotong University , Chongqing 400074 , China
  • Received:2012-06-18 Revised:2013-05-27 Online:2014-04-15 Published:2015-01-22

摘要: 考虑真实路网车辆行驶速度随时间、路段不同而变化的特点,研究了一类单车多任务末端物流配送路径优化问题。建立了优化目标为配送时间最短的基于实时路网的单车多任务配送路径模型;提出了利用实时Dijkstra算法求解两点间实时最短路、遗传算法优化车辆客户配送顺序相结合的Dijkstra-GA优化求解算法;数值算例验证了算法的有效性,表明了考虑路网时变特性对末端物流配送路径计划的重要性。

关键词: 交通工程, 实时路网, 多任务, 路径优化, Dijkstra算法, 遗传算法

Abstract: The route optimization of multi-trip single vehicle was studied considering the vehicle speed changed with the time and route in real time road network. A multi-trip single vehicle route model based on the real time road network was established to find the shortest route between any two customers. A Dijkstra-GA algorithm was proposed to find the shortest route between any two customers by the Dijkstra algorithm; and the genetic algorithm is used to optimize the customer distribution sequence. The numerical examples demonstrate the Dijkstra-GA algorithm is effective and it is important to consider the vehicle speed changing with time when vehicle route schedule is made.

Key words: traffic engineering, real time road network, multi trip, vehicle routing optimization, Dijkstra algorithm, genetic algorithm

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