A worker cleans atop of a bullet train at a high speed railway maintenance station during the travel...
A worker cleans atop of a bullet train at a high speed railway maintenance station during the travel rush period ahead of the Chinese Lunar New Year, in Hefei, Anhui province February 7, 2015. Chinese Ministry of Transport said a total of 2.807 billion trips are expected to be made during the 40-day Spring Festival travel rush, which will begin on February 4 and last until March 16, Xinhua News Agency reported. Picture taken February 7, 2015. REUTERS/Stringer (CHINA - Tags: TRANSPORT SOCIETY ANNIVERSARY)