Abstract:

Taking the passenger aviation network of China in the winter and spring of 2010, 2015 and 2019, using standard deviation ellipse, complex network related indicators and inverse distance weight method to interpolate the index, this paper analyzes the evolution characteristics of spatial structure of China's passenger aviation network in past ten years.Results show that: (1) The number of airports in the western region of China is in a relative growth state, and the northwest airport group layout center moves to the northwest, while the other five major airport group layout is stable, making the airport layout center gradually move to the west, which shows a balanced trend;(2) The scale of the airline network is growing rapidly, the status of the high-value nodes is stable and proportion of the low-value nodes is decreasing, the degree distribution, network transport efficiency and node accessibility are increasing. The number of nodes with high clustering coefficient near the average degree increases and network hierarchy is strengthened, but the small-world feature of the network is weakened; (3) The near centrality and betweenness centrality of Chengdu, Xi'an and Chongqing have increased significantly. The value and control power in the network have been enhanced, and the network intermediary hub has evolved inland.

Key words: air network, standard deviational ellipse, complex networks, spatial structure, air hub

摘要：

以2010、2015、2019年冬春航季我国客运航空网络为研究对象，采用标准差椭圆与复杂网络相关指标，对指标进行反距离权重法插值，分析十年来我国客运航空网络空间结构演化特征。发现：1）从机场空间来看，西部地区机场数量处于相对增长状态，同时西北机场群布局中心向西北方向移动，而其余五大机场群布局稳定，使得机场布局中心逐渐西移，有均衡布局趋势；2）从航线网络来看，规模增长迅速，由于高度值节点地位稳定，低度值节点占比减少，使得度分布集聚性增加，另外网络运输效率与节点可达性呈增长趋势，平均度值附近高聚类系数节点增加，网络层级加强，但网络小世界特征有所减弱；3）从节点中心性来看，成都、西安、重庆3个城市接近中心性与介数中心性增加明显，在网络中的价值与控制力得到提升，网络中介枢纽向内陆演化。

关键词: 航空网络, 标准差椭圆, 复杂网络, 空间结构, 航空枢纽