Paramilitary police officers keep passengers in order as they enter a railway station in Fuzhou, Fujian province, January 30. Hundreds of millions of Chinese are on the move ahead of the Lunar New Year holiday.Train passengers travelling during the Spring Festival travel rush ahead of Chinese Lunar New Year arrive at the Hengyang Railway Station in Hunan province.Passengers travelling during the Spring Festival travel rush wait to board trains at the Hangzhou East Railway Station in Zhejiang province.Travellers wait for their train at Beijing Railway Station.Passengers travelling during the Spring Festival travel rush at the Hangzhou East Railway Station in Zhejiang province.A mother and her son arrive at Beijing Railway Station.A man carries his belongings as he walks among passengers on the first day of the annual Spring Festival travel rush at a railway station in Jiaxing, Zhejiang province.Passengers wait to board their trains at the Shenzhen North Railway Station