At this stage, the development of the mainland has undergone qualitative changes, and people's travel is no longer limited to slow, green trains that take more than ten hours.
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If you go to a farther place in the country to take a "fly" for an hour or two, the plane ticket is relatively expensive.
If the journey is not far, or the time is not very rushed, in fact, the ordinary train will be much faster than the previous green train.
Everyone has experience riding trains, and after buying a sleeper ticket, after you get on the train, a flight attendant will come to each bed in each car to put away the train tickets one by one after half an hour, and then change you into a hard card marked with the bed number.
Between half an hour and one hour before you get off the train, the flight attendant will collect your card and return your previous ticket to you.
Do you think this is strange, why do you need to do this?
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In fact, the reason is this!
First of all, the flight attendant can check the ticket by exchanging the ticket.
It is well known that the carriages of trains are interconnected and that the doors between each carriage are locked only when they are close to the terminal.
In the case of connectivity, some people will take chances and simply buy a hard seat ticket to get on the bus first and then sneak into the sleeping compartment to sleep.
Sleeper tickets are often much more expensive than hard seats, so that exchanging tickets can avoid passengers running around.
Second, when you buy a ticket and set a bed and seat, but someone after buying a ticket on the upper bunk, but feel that the upper bunk is more troublesome, the space is small, and simply sleep on the lower bunk, which is very wrong.
When changing tickets, flight attendants will also check whether the beds correspond to the tickets.
Finally, if you buy a sleeper train ticket, it is generally because the journey time is relatively long, the seat is uncomfortable, sometimes arriving at the station in the middle of the night, passengers will rest in bed, but if you sleep deeply, you may miss the place you want to get off.
The purpose of exchanging tickets can also be to remind passengers that it is time to get off the bus so that they do not sit through the station.
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