Are there no cars during the railway operation adjustment?

The reasons for the suspension of ticket sales during the railway operation adjustment are: some train running routes and running time have to be changed, some new cars have to be added, and some old cars have to be stopped. Stop selling often appears in the data being modified in the railway system, waiting to be changed into new data. So don't sell tickets, buy them after changing the ticket.

During the adjustment of railway operation, the suspension of train sales means that the time of this train will be adjusted, and a certain number of trains may be added, or a certain number of trains may be stopped or slightly adjusted. In other words, the train passing station, departure time, departure station, terminal and other related factors may change.