What does the letter in front of the train mean?

Z stands for through passenger train.

T stands for express bus.

"K" stands for express bus.

"N" stands for the passenger train in the pipeline.

"L" stands for temporary passenger train.

"Y" stands for tourist train.

G stands for international passenger train.

The four-digit train is an ordinary passenger train.

Train is one of the modern means of transportation for human beings, and it is a typical example of human transportation using fossil energy. Refers to vehicles running on railway tracks, usually consisting of multiple carriages.

The most important machine in human history, called steam locomotive in the early days, has an independent orbit. Railway trains can be divided into freight cars and passenger cars according to their load capacity, and there are mixed passenger and freight cars.