"G" is taken from the "Gao" of high-speed rail, which refers to the high-speed EMU train, with a speed of 300 or 350 kilometers per hour, which is the fastest train in operation at present. Now Fuxing is the fastest high-speed EMU train, with a top speed of 400 kilometers per hour and a standard speed of 350 kilometers per hour.

The meaning of the letter at the beginning of the train

1 and "d" refer to EMU trains, capitalized by the initial letter of "dong", with an average speed of "200km/h-250km/h".

2. "C" refers to the inter-city EMU train, capitalized by the initial of "Cheng", with a speed of 200km/h-250km/h in general, but there are also inter-city EMUs with a speed of 250 km/h-300 km/h.

3. "Z" refers to the through express train, capitalized by the initial of "zhi", with an average speed of about 140km/h and a maximum speed of 160km/h (blue and white body).

4. "T" refers to a particularly fast train, capitalized by the initial letter of "te", with an average speed of about 90km/h- 120km/h and a top speed of 160km/h (blue and white body).

5. "K" refers to the express train, which is capitalized from the initial letter of "kuai", with an average speed of about 60km/h-90km/h and a maximum speed of 120km/h (the color of the car body is mostly red and occasionally green).