城市配送末端节点布局双层规划模型及算法

在对上海城市配送末端节点现状调查分析的基础上建立了城市配送末端节点布局双层规划模型,其中,上层规划模型从规划者的角度使整个系统最优,下层规划模型从客户的角度综合考虑末端节点到客户距离、末端节点的服务价格和服务质量等3个方面主要因素使客户系统最优.利用反应函数设计了启发式求解算法.将上海徐家汇街道作为研究区域进行实例分析,结果表明:模型及算法能解决城市配送末端节点布局问题.

Bi-level programming model and solution algorithm for the layout of terminals of city distribution

Based on the surveys and analysis of terminals of city distribution in Shanghai, a bi level programming model for a kind of terminals of city distribution is created. In terms of planners, the upper level of the bi level programming model optimizes the whole system; in terms of customers, while the lower level optimizes the customer systerm by considering the distance of terminal to customers, the price and quality of the service of terminals. Then, through reaction function, a heuristic algorithm is designed. Finally, it is proved by a practical example of Xujiahui that the model and algorithm to solve the layout problem of terminals of city distribution is reasonably feasible.