农村快递共同配送网点选址研究

针对农村快递一级配送中心的选址,建立了以提供最大可能的服务为目标函数的混合整数规划模型,模型中包括设施辐射范围、设施可建设数量、服务能力限制、不重复服务等约束。考虑到运输方式的不确定,基于经纬度及三角理论定义城市间的直线距离。针对所建立的模型,设计了相应的分支定界算法,并采用Lingo编程进行求解。算例研究表明:模型和算法的有效性较高。

Study on Net Point Layout of Rural Express Joint Delivery

For location of the rural express delivery center, a mixed integer programming model was proposed toprovide the most possible service as the objective function. The model includes constraints such as facility radiationrange, facility construction quantity, service capacity limit and non-repetitive service. Taking into account theuncertainty of the mode of transport, the distance between cities was defined based on the latitude, longitude andtriangle theory. The corresponding branch and bound algorithm is designed to solve the established model, which issolved by Lingo. The computational results of the illustrative example show that the model and algorithm are moreeffective.