基于复杂网络的我国高铁演化特征研究

为深入认识我国高铁网络演化的拓扑特性和规律，将高铁站点所在城市抽象成网络节点， 将高铁线路抽象成网络的边，运用复杂网络理论对我国2003—2015 年高铁网络演化特征进行分 析。研究发现：我国高铁网络密度不断提升，但依然存在东、中、西部节点城市被割裂，整体网 络密度偏低的现象；网络中介中心势不断增强，一些关键节点（比如：武汉、郑州） 具有较大的 网络控制权，不均衡性逐渐扩大；网络发展后期呈现出小世界特性。因此，提出如下建议：加快 西部地区网络规模和城市网络地位建设；提升网络均质性，弱化关键节点控制力；选择性地建设 关键中、东部和西部城市之间的长线路，提升整体网络性能。

Evolution Features of High-Speed Rail in China Based on Complex Network

In order to identify the topological attribute and evolution pattern of high-speed rail(HSR) network, the evolution features of HSR network in China from 2003 to 2015 were investigated based on complex theory. Wherein, cities which HSR stations located in were considered as nodes and HSR routes were supposed as network lines. It is found that, HSR network density continues to rise, while the linkages during the western, eastern and central cities in China are separated, the overall network density is low; the betweenness centralization appears to be growing, and some key nodes (e.g., Wuhan and Zhengzhou) have great network power, showing regional unbalance; the network presents the feature of small world during the late stage of development. According to these findings, some suggestions are provided that, the network scale and the status of urban network construction in Western China should be accelerated; some powerful cities should be weakened to enhance network balance; long HSR routes between western region and eastern/central region can be selectively constructed to promote the overall network performance.