Passengers wait to get on the train at Nanjing South Railway Station in Nanjing, capital of east China's Jiangsu Province, Feb. 4, 2015. The 40-day travel frenzy known as "chunyun", the hectic period through the Chinese lunar New Year, or the Spring Festival, which falls on Feb. 19 this year, began on Feb. 4 and will last until March 16. (Xinhua/Li Xiang)