Passengers line for getting on the train at Yinchuan Railway Station in Yinchuan, capital of Ningxia Hui Autonomous Region, Feb. 16, 2012. A total of 3.16 billion passenger trips are expected during this year's 40-day Spring Festival holiday travel rush, which will end on Feb. 16. The Spring Festival holiday, also known as the beginning of the Chinese Lunar New Year, is the country's biggest and most important holiday. [Xinhua]