Drivers work on train No. 6245 which travels from Qiqihar to Gulian in Northeast China's Heilongjiang province, early on Jan 23, 2019. Train No. 6245 is one of China's most economical railway trains which are bound for remote destinations. During China's Spring Festival travel season, these "slow trains" offer passengers an alternative choice to go home at a cheap fare. [Photo/Xinhua]
Inspectors check the "slow trains" in Jagdaqi in Northeast China's Heilongjiang province, Jan 22, 2019. During China's Spring Festival travel season, these "slow trains" offer passengers an alternative choice to go home at a cheap fare. [Photo/Xinhua]
Passengers, with or without seats, are seen on train No. K497 which travels from Beijing to Jagdaqi in Northeast China's Heilongjiang province, Jan 21, 2019. Train No. K497 is one of China's most economical railway trains which are bound for remote destinations. During China's Spring Festival travel season, these "slow trains" offer passengers an alternative choice to go home at a cheap fare. [Photo/Xinhua]
Passengers are seen on train No. 6245 which travels from Qiqihar to Gulian in Northeast China's Heilongjiang province, early on Jan 23, 2019. Train No. 6245 is one of China's most economical railway trains which are bound for remote destinations. During China's Spring Festival travel season, these "slow trains" offer passengers an alternative choice to go home at a cheap fare. [Photo/Xinhua]
Aerial photo shows train No. K7041 running from Harbin to Mohe in Northeast China's Heilongjiang province, Jan 23, 2019. Train No. K7041 is one of China's most economical railway trains which are bound for remote destinations. During China's Spring Festival travel season, these "slow trains" offer passengers an alternative choice to go home at a cheap fare. [Photo/Xinhua]
A driver works on train No. 6245 which travels from Qiqihar to Gulian in Northeast China's Heilongjiang province, early on Jan 23, 2019. Train No. 6245 is one of China's most economical railway trains which are bound for remote destinations. During China's Spring Festival travel season, these "slow trains" offer passengers an alternative choice to go home at a cheap fare. [Photo/Xinhua]
A railway staff looks through a frosted window on train No. 6245 which travels from Qiqihar to Gulian in Northeast China's Heilongjiang province, early on Jan 23, 2019. Train No. 6245 is one of China's most economical railway trains which are bound for remote destinations. During China's Spring Festival travel season, these "slow trains" offer passengers an alternative choice to go home at a cheap fare. [Photo/Xinhua]
A passenger uses mobile phone at the sleeping carriage of train No. 6245 which travels from Qiqihar to Gulian in Northeast China's Heilongjiang province, Jan 22, 2019. Train No. 6245 is one of China's most economical railway trains which are bound for remote destinations. During China's Spring Festival travel season, these "slow trains" offer passengers an alternative choice to go home at a cheap fare. [Photo/Xinhua]
A train conductor gives signal to driver of train No. 6245 which travels from Qiqihar to Gulian in Northeast China's Heilongjiang province, Jan 22, 2019. Train No. 6245 is one of China's most economical railway trains which are bound for remote destinations. During China's Spring Festival travel season, these "slow trains" offer passengers an alternative choice to go home at a cheap fare. [Photo/Xinhua]
Train conductors renew the plastic film to keep warm on train No. 6245 which travels from Qiqihar to Gulian in Northeast China's Heilongjiang province, Jan 22, 2019. Train No. 6245 is one of China's most economical railway trains which are bound for remote destinations. During China's Spring Festival travel season, these "slow trains" offer passengers an alternative choice to go home at a cheap fare. [Photo/Xinhua]
