华南理工大学学报(自然科学版) ›› 2005, Vol. 33 ›› Issue (7): 92-95.

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城市货物换装站非约束选址模型及其遗传算法

朱强1 卜雷2 徐建闽1   

  1. 1.华南理工大学 交通学院,广东 广州 510640;2.同济大学 交通运输工程学院,上海 200092
  • 收稿日期:2004-10-11 出版日期:2005-07-25 发布日期:2005-07-25
  • 通信作者: 朱强(1970-),男,在职博士生,工程师,主要从事智能交通系统研究 E-mail:zhuqron@vip.163.tom
  • 作者简介:朱强(1970-),男,在职博士生,工程师,主要从事智能交通系统研究

Model and Its Genetic Algorithm for Non-Restraint Location Selection of Urban Freight Transshipping Station

Zhu Qiang1  Bu Lei2  Xu Jian-min1   

  1. 1.College ofTraffic and Communications,South China Univ.ofTech.,Guangzhou 510640,Guangdong,China;2.School of Transportation Engineering,Tongji Univ.,Shanghai 200092,China
  • Received:2004-10-11 Online:2005-07-25 Published:2005-07-25
  • Contact: 朱强(1970-),男,在职博士生,工程师,主要从事智能交通系统研究 E-mail:zhuqron@vip.163.tom
  • About author:朱强(1970-),男,在职博士生,工程师,主要从事智能交通系统研究

摘要: 结合城市货物运输的具体特点及连续选址问题的复杂性,在分析城市货物换装站非约束选址问题特点的基础上,建立该问题的优化数学模型,并构造求解问题的有效遗传算法.算法中设计了基于表上作业法或单纯形法的嵌入式适应值计算方法,并采用确保浮点数编码个体有效性的遗传操作方法.实例计算表明,本文提出的模型与算法能够有效地解决城市货物换装站非约束选址问题.

关键词: 货物运输, 换装站, 非约束, 选址, 遗传算法

Abstract:

Considering the characteristics of urban freight transportation and the complexity of the consecutive loca-tion selection,the non-restraint location selection problem existing in urban freight transshipping stations is ana-lyzed,on the basis of which an optimized mathematical model to solve the problem is established and the effective genetic algorithm for the model is constructed.In this algorithm,the inlaid fitness function based on the table task or the simplex search is designed,and the genetic operational method ensuring the floating-point coding validity is adopted.Numerical calculation results indicate that the proposed model and algorithm efectively solve the non-re-straint location selection problem existing in urban freight transshipping stations.

Key words: freight transportation, transshipping station, non-restraint, location selection, genetic algorithm