铁路物流中心选址-分配问题研究

Problem Study of Location-Allocation for Railway Logistics Center

为了满足铁路集中化运输的要求,基于铁路物流中心的层级特点,结合分层选址的理论和方法,以铁路物流中心覆盖的总需求最大化和物流运输成本最小为目标,以各级物流中心数量、服务能力和服务覆盖范围为约束,构建了铁路物流中心分层选址-分配的0-1整数规划模型.最后针对铁路物流中心选址-分配模型的特点,设计了算例,并采用ILOG CPLEX软件进行求解.算例结果验证了该选址-分配方法的有效性和可行性.

To meet the demand of railway integration transportation, a hierarchical location allocation model which maximizes the total covering needs of the railway logistics center and and minimizes the transport costs is proposed based on the hierarchical characteristic of railway logistics center, combining with the theory and methods of hierarchical location under the consideration of the constraint that the number, service ability and service coverage of railway logistics center is limited. Finally, according to the characteristics of railway logistics center location allocation model, an example is given, and ILOG CPLEX software is used to solve it. Results of the example show that the location-allocation method is effective and feasible.