考虑内陆转运的集装箱班轮运输网络设计方法

    Container Shipping Network Design Research Considering Gate Port

    • 摘要: 为了优化班轮公司航线网络,降低运营成本,针对始发地或目的地位于内陆,且内陆与港口间存在转运OD流的班轮航线进行网络设计。基于Logit和整数线性规划等方法,将内陆OD流转化为港到港需求,建立集装箱班轮航运网络评估模型。模型以总成本最小为目标,同时满足货运需求、装卸港转运时间以及合理安排运力等约束,利用IOLG CPLEX优化软件进行求解。将模型用于某班轮公司航线网络设计,与现有结构相比优化结果显示:在保持总运量大致持平的基础上,可将原有船队规模从81条航线、289只船舶有效缩减到77条航线和269只船舶。表明该模型能够有效降低班轮航线运营成本,具有较大的实践意义。

       

      Abstract:  Considering that inland origin-destination (OD) pairs involve a change in transport mode from inland transportation to maritime shipping, a network model of container liner transport is built to optimize the shipping line network and reduce the cost. Logit model and integer liner programming are utilized to convert inland OD demand to port-to-port demand and build a network evaluation of container liner transport. To minimize the total cost, the model needs to satisfy the constraints of shipping demand, transit time at loading port or discharging port and arranging rational capacity, and IOLG CPLEX optimization software is used to solve the computational model. The model is then used to redesign a company′s original network. The optimization result shows that, on the basis of the total volume approximately staying the same, the fleet size reduces from 81 to 77 and ship number from 289 to 269, which indicates that this model can effectively lower operating cost of container shipping and has great practical meaning.

       

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