Container ship network design method by multi-commodity flow model

线性运输集装箱船网络设计的数学模型。在集装箱运输中，来自不同货主的货物装载在一艘集装箱船上。集装箱船要访问多个港口，在这些港口卸货和装载一些新货物。目标是设计一个网络，使每艘船的工作率尽可能高。为此，我们扩展了多商品流模型。

Mathematical model to design the container ship network for linear shipping. In container shipping, cargoes from different owners of cargoes are loaded on a container ship. The container ship visits multiple ports, at which some of the cargoes are landed and some new cargoes are loaded. The objective is to design the network with which the working rate of each ship becomes as high as possible. For this purpose, we extend the multi-commodity flow model.