Wang Wei, Du Wenbo, Liu Kun, Tong Lu
School of Electronic and Information Engineering, Beihang University, Beijing, 100191 China.
HCIG Communication Investment Co., Ltd, Shijiazhuang, 050051 China.
Urban Rail Transit. 2022;8(2):134-145. doi: 10.1007/s40864-022-00168-9. Epub 2022 Jun 23.
With the rapid development of China's economy and society, China's railway transportation system has been dramatically improved in terms of its scale and operational efficiency. To uncover the underlying relationship between urbanization and railway network structure, this paper examines the evolution of China's railway transportation system from 1999 to 2019 by applying complex network theory. The results show that China's railway network (CRN) has become more connected, more "small-world" and more heterogeneous since the beginning of the twenty-first century. Based on the train flow and train travel distance, the evolutionary course of CRN is found to undergo two apparent stages, with a turning point in 2007. By calculating the regional railway connection index (RRCI), it is revealed that the planned core cities in different regions act as bridges connecting the regions to the rest of the whole network.
随着中国经济社会的快速发展，中国铁路运输系统在规模和运营效率方面都有了显著提升。为了揭示城市化与铁路网络结构之间的潜在关系，本文运用复杂网络理论研究了1999年至2019年中国铁路运输系统的演变。结果表明，自21世纪初以来，中国铁路网络（CRN）的连通性更强、更具“小世界”特性且更加异质化。基于列车流量和列车运行里程，发现CRN的演变过程经历了两个明显阶段，转折点为2007年。通过计算区域铁路连接指数（RRCI），揭示了不同区域的规划核心城市充当着将各区域与整个网络其他部分连接起来的桥梁。
