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. (Xinhua/Cai Yang)
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. (Xinhua/Cai Yang)
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. (Xinhua/Cai Yang)
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. (Xinhua/Cai Yang)
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. (Xinhua/Wang Yuguo)
A railway policeman patrols 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. (Xinhua/Wang Yuguo)