Characterizing the Structure of the Railway Network in China: A Complex Weighted Network Approach

Figure 3

The spatial distribution of train flows in CRN. The size of the nodes reflects the degree of the city, and the colors of the lines indicate train flows. The black dashed line denotes the Hu Line, which demarcates the concentration of population of China. Cities along the four vertical and four horizontal railway corridors are marked as ① Beijing, ② Tianjin, ③ Qinhuangdao, ④ Shenyang, ⑤ Ha’erbin, ⑥ Taiyuan, ⑦ Shijiazhuang, ⑧ Jinan, ⑨ Qingdao, ⑩ Urumchi, ⑪ Lanzhou, ⑫ Xi’an, ⑬ Zhengzhou, ⑭ Xuzhou, ⑮ Nanjing, ⑯ Shanghai, ⑰ Hangzhou, ⑱ Wuhan, ⑲ Chongqing, ⑳ Chengdu, ㉑ Nanchang, ㉒ Changsha, ㉓ Huaihua, ㉔ Guiyang, ㉕ Kunming, ㉖ Ningbo, ㉗ Fuzhou, ㉘ Xiamen, ㉙ Shenzhen, ㉚ Guangzhou.