A worker cleans the surface of a train in a train depository of the Beijing Railway Bureau in Beijing, capital of China, Feb. 2, 2015. A 40-day spring festival travel rush will soon begin, during which the Beijing Railway Station is expected to send 4.2 million passengers and receive 4.3 million passengers. The station has taken out measures to better serve passengers on their way.(Xinhua/Shen Bohan)