Does Z at the beginning indicate a green train?

[DeAaron]

Z at the beginning does not necessarily indicate a green train. Z stands for direct train. Here is some information about green trains: 1. Introduction: Green trains, with their grassland green exterior, are commonly known as railway passenger cars in China with green paint and yellow stripes on the chassis. The body of the passenger car is usually painted with a green base color and yellow stripes. 2. Origin of the name: For a long time, trains were almost the only means of long-distance travel for Chinese people, with 50,000 kilometers of railway connecting people like capillaries. At that time, all trains were green, a result of loyal imitation of the Soviet Union during the planned economy period, and also a remnant of wartime aesthetics, hence the term 'green train'. 3. Classification: Typical examples include the 22-type passenger car, 22B-type passenger car, 25B-type passenger car, and other series of passenger train carriages.