In railway operation, the train starting with Z is a direct express passenger train, which is called Zhite for short. The letter Z is the Chinese phonetic abbreviation for "Zhi".

The characteristics of trains starting with z are:

1. During the journey, you should stop without stopping, or stop after parking, but do not handle passenger service.

2. The train bottoms are all 25T, all air-conditioned trains.

3. Trains run across bureaus (not in a railway bureau).

This kind of train appeared after the fifth speed increase on April, 2004 18. In the past, although the railway had through trains, they were all mixed in the express trains.

Extended data:

Letter meaning of train number

Z- through express (short for: through express, pronounced as: through express)?

T-special express (abbreviated as express, pronounced as special) (inter-office: 1 ~ 399, in-pipe 40 1 ~ 999),

K-express train (short for: express, pronounced: express)?

N-the express train within the railway bureau?

X —— Temporary train for direct mail, luggage and parcels (pronounced as line): (cross-bureau: 1 ~ 499, in-pipe 50 1 ~ 999)

L- temporary passenger train (short for: temporary passenger, pronounced as: temporary)?

A —— Add cars temporarily as needed (abbreviated as: temporary adding cars, pronounced as: a)?

Y- temporary tourist train (referred to as tourist train, pronounced tourist)?

Without letters: short for ordinary express: (direct reading of trains)1001~1999-through ordinary express (over three innings) 200 1 ~ 2999- through ordinary express (over two innings) 4001.

After six references add:?

D- new speed bullet train (pronunciation: moving)?

G__ high-speed rail.