What does the letter y in the train number stand for?

Dear, the Y prefix of the train number is a temporary train.

Y (temporary tourist train)

Passenger trains with peak passenger flow can also be special tourist trains that travel agencies apply to the Ministry of Railways for organizing group charter operation. At present, only a few trains use the prefix "Y", such as the S2 line of Beijing Suburb Railway before the implementation of the new ticket collection method (the number of trains changed to S20 1 to S232 after the new ticket collection method was changed) and Y509/Y5 10 between Beijing and Qinhuangdao. The train range is Y 1-Y998, in which Y 1-Y498 is an inter-bureau train and Y50 1-Y998 is a tourist train in the pipeline. The standard pronunciation of the railway system is "travel x times".

The scope of temporary tourist trains of the Railway Bureau:

Harbin bureau Y50 1-Y530, Shenyang bureau Y53 1-Y560, Beijing bureau Y56 1-Y600, Taiyuan bureau Y60 1-Y630, Hohhot bureau y631-y644. Xi 'an Bureau Y70 1-Y730, Jinan Bureau Y73 1-Y760, Shanghai Bureau Y76 1-Y800, Nanchang Bureau Y80 1-Y830, Guangzhou Railway Group Y831-Y830. Kunming Bureau Y90 1-Y920, Lanzhou Bureau Y92 1-Y940, Urumqi Bureau Y94 1-Y960, Qinghai-Tibet Railway Company Y96 1-Y980.

For more information, see the following:

/view/2526697.htm？ Fr = Aladdin

Above, please know, thank you!