关键词: 物流管理, 航空快递网络, “枢纽—辐射”, 遗传算法, 超效率DEA模型

Abstract: The construction of rational air freight network is one of the important means to improve the competitiveness for express enterprises. Hub-spoke air freight network is an effective model to integrate air freight resources, to improve efficiency of resource utilization, and to increase the competitiveness of express enterprises. This paper establishes a Hub-Spoke air express model from three aspects, i.e. hub location decisions, assignment relationship decisions and hub number decisions, with the goal to achieve the lowest air freight network cost and shortest express processing time. Based on this, this paper chooses genetic algorithm to compute the costs of networks with different number and locations of hubs. Gravity model is applied to the determination of assignment relationship, and super-efficiency DEA model is applied to decide the number of hubs. Finally, the model and algorithm are verified to be very effective in the real case of SF express company, which includes 17 nodes in the network and is going to be extended rapidly. The model and algorithm prove to be useful for express companies to establish an efficient and responsive Hub-Spoke network to gain competitiveness.

Key words: logistics management, air express network, “hub-spoke”, genetic algorithm, super-efficiency DEA model