Waiting refers to a way for passengers to get tickets by submitting a waiting list and waiting for someone to refund their tickets or increase the number of trains when the tickets are sold out. The priority of standby orders is determined according to factors such as submission time and bill type. If someone cancels a ticket or increases the number of trains, the system will allocate tickets for the standby order according to the priority. However, due to the uncertainty of the number and time of refunding tickets and increasing the number of trains, there is no guarantee that seats can be obtained through waiting.
Waiting to grab tickets is an alternative way to grab tickets, which is suitable for the situation of tight tickets.