基于适箱货物优先级的铁路空箱调运模型

Railway empty container allocation model based on cargo rank

根据铁路运输的特点,将适箱货物按重要程度分为不同的优先等级,建立铁路集装箱空箱调运非线性混合整数规划模型。目标函数为极小化空箱调运费用,在空箱量不足的条件下,首先满足各站高等级货物的空箱需求,并只有在高等级货物空箱需求得到满足且仍有空箱时,才会考虑各站低等级货物的空箱需求。数值算例验证了模型的有效性和可行性。

A nonlinear mixed integer programming on railway empty container allocation is modeled based on cargo rank according to railway transportation characteristic.The objective function is minimizing the cost of empty container allocation.Under short of empty container,the higher the cargo demand rank is,the more preferentially satisfied the empty container demand will be.A numerical case is given to demonstrate the validity and feasibility of the proposed model.