What do the numbers and letters on the train mean?

1. "T" (special) is a special luxury train operated by the Shanghai Bureau;

2. "D" (dynamic) is an EMU train operated by the Harbin Bureau;

3. "S" (Shenzhen) is the passenger express train operated by Guangzhou-Shenzhen Railway Company;

4. "G" (High) is the high-speed train (speed per hour) on the Guangzhou-Shenzhen Line 200 kilometers);

5. "Z" (quasi) means quasi-high-speed train on the Guangzhou-Shenzhen line (speed 160 kilometers per hour);

6. "K" (fast) means fast Train (speed above 120 kilometers per hour);

7. "Y" (tour) is a tourist train running between big cities and tourist cities;

8. "L" ( "X" (Line) is a temporary passenger train that is added during the Spring Festival and summer vacation when passenger traffic is busy;

9. " Train

10. "N" (inside) - intra-tube express train (the same as K, we ordinary passengers do not need to distinguish it)