The train starting with Z: a direct express passenger train, which is called Zhite for short. The letter Z is the Chinese phonetic abbreviation of the word "Zhi". This kind of train has to stop at one stop during the trip or stop but does not handle passenger transport business. The bottom of this kind of train is 25T, and all of them are air-conditioned trains. All the through-train trains are inter-bureau (not in a railway bureau). This kind of trains only appeared after the fifth speed increase of the railway on April 18, 2004. Although there were through-train trains in the past, they were all mixed in the express trains.

Z 162 is not always late.

G-high-speed bullet train

D-emu

C-Intercity Expressway

T-air conditioning express

K-fast

N-in-tube fast

Q-transnational train (air conditioning express range)

L, a-temporary bus

Y, four-digit train-air conditioning is popular.