Volunteers help migrant workers to buy tickets for their returning home in a construction site in Changfeng County, east China's Anhui Province, Jan. 3, 2018. Train tickets for 2018 Spring Festival travel rush went on sale Wednesday. The Spring Festival travel rush starts from Feb. 1 and ends on March 12. Spring Festival, or Chinese Lunar New Year, is the most important occasion for family reunions and falls on Feb. 16 this year. (Xinhua/Cao Li)