A passenger enters the station through auto check-in at the Xi'an North Railway Station in Xi'an, capital of northwest China's Shaanxi Province, Feb. 1, 2018. China's 40-day Spring Festival travel rush, which concluded on March 12, witnessed 2.97 billion passenger trips, according to official data. The traffic is basically the same as that of last year, according to the Ministry of Transport. (Xinhua/Liu Xiao)