In 222, z15 was shut down.

October 5, 222. The Z15 train is a direct express train from Beijing to Harbin, passing through six provinces and cities of Beijing, Hebei, Tianjin, Liaoning, Jilin and Heilongjiang, and running along the Beijing-Harbin line. There are no hard sleepers and seats, only soft sleepers and advanced soft sleepers are sold. According to the relevant notice issued by the relevant railway authorities, it can be known that the z15 train stopped on October 5, 222, and the train operated normally on October 11, 222. Train outage means that the train is temporarily suspended and not opened due to the weather or the adjustment of the train diagram.