Passengers board a high-speed train train at Tianjin Railway Station in north China's Tianjin, March 12, 2018. China's 2018 Spring Festival travel season came to an end on Monday. The period, also known as "Chunyun", usually sees an increased passenger flow for 40 days around the Spring Festival. (Xinhua/Yang Baosen)

A railway crew member draws the curtain of a train carriage at Jiujiang Railway Station in Jiujiang, east China's Jiangxi Province, March 12, 2018. China's 2018 Spring Festival travel season came to an end on Monday. The period, also known as "Chunyun", usually sees an increased passenger flow for 40 days around the Spring Festival. (Xinhua/Hu Guolin)

Two passengers leave Zhengzhou Railway Station in Zhengzhou, central China's Henan Province, March 12, 2018. China's 2018 Spring Festival travel season came to an end on Monday. The period, also known as "Chunyun", usually sees an increased passenger flow for 40 days around the Spring Festival. (Xinhua/Li Jia'nan)