Exploring the Node Importance and Its Influencing Factors in the Railway Freight Transportation Network in China

Table 1

Provinces included in the coastal region, the YEZ, and the SREB and the resource provinces.

Coastal region	Tianjin, Hebei, Liaoning, Shanghai, Jiangsu, Zhejiang, Fujian, Shandong, Guangdong, Guangxi, Hainan
YEZ	Shanghai, Jiangsu, Zhejiang, Anhui, Jiangxi, Hubei, Hunan, Chongqing, Sichuan, Guizhou, Yunnan
SREB	Guangxi, Chongqing, Sichuan, Yunnan, Shaanxi, Gansu, Qinghai, Ningxia, Xinjiang
Resource provinces	Shanxi, Inner Mongolia, Liaoning, Heilongjiang, Anhui, Shandong, and Henan