Passengers board a ship at Xinhaigang wharf in Haikou, south China's Hainan 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/Yang Guanyu)?