The Z 138 train is not an express train, but a through express train, which is called Zhite for short. Among them, the letter Z is the Chinese phonetic abbreviation of the word "Zhi". The Z 135/Z 138 train runs for 48 hours and 37 minutes, with a total length of 4,630 kilometers. This kind of train does not stop at one stop during the trip, or it must stop at one stop, but it does not handle passenger service.

This kind of train appeared after the fifth speed increase on April, 2004 18. Although there used to be through trains, they were all mixed in express trains. The bottom of these trains is 25T, and they are all air-conditioned trains. In addition, all through trains are inter-bureau (that is, not in a railway bureau).

Extended data

Historical evolution of through train

On April 8, 2004, after the fifth speed increase of 18, the express passenger train appeared for the first time, and the number of trains was Z-shaped (such as train Z 16 1).

Before the map adjustment on June 4th, 2065438 and February 4th, 2065438, most of the through express trains are through trains, and some of them will stop at the big stations under the jurisdiction of the Railway Bureau Group Co., Ltd. where the departure station and/or the terminal station are located, as well as stations that need technical parking.

After the map was adjusted at 438+04 on June 65, 1965+438+00 on February 65, the through train was redefined as a passenger train with the highest running speed160 km/h.

Baidu encyclopedia-through train