Ticket stub

A ticket is a voucher that indicates that an individual is entitled to admission to an event or establishment such as a theatre, amusement park or tourist attraction, or has a right to travel on a vehicle, such as with an airline ticket, bus ticket or train ticket. An individual typically pays for a ticket, but it may be free of charge. A ticket may serve simply as proof of entitlement or reservation. A ticket may be valid for any seat ("free seating") or for a specific one ("allocated seating").

Members of the public can buy a ticket at a ticket window or counter, called a box office in the entertainment industry (this term is also used for the total receipts). The ticket check may also be there, or it may be separate. Tickets may also be available from resellers, which typically are commercial enterprises that purchase tickets in bulk, and resell them to members of the public, adding a surcharge. Consumers buy from resellers for reasons of convenience and availability. The convenience factor relates to being able to obtain tickets locally, and also being able to make alternate selections on the spot if the preferred performance is not available. The availability factor relates to the fact that all tickets may have been sold out at the box office, requiring the purchaser to either obtain tickets from the reseller, or not to see the show (or at least not see the particular performance of choice).

Sometimes, for some train journeys, both free or allocated seating are available, with an increased charge for a reserved seat. A passenger with a free seating ticket in a train carries the risk of having to stand. In a cinema a free seating ticket means that a seat is guaranteed, just not a specific one.

Paper or is generally used, although plastic may be used instead for durability. Some have a barcode or magnetic stripe for keeping simple data stored on them, higher end ones use chips to store more data and prevent counterfeiting.

A paper ticket often is perforated so it can be separated into two parts, one (the ticket stub) to be kept by the customer, and one to be kept by the ticket controller. Whether or not one can leave and reenter with the customer part only varies. It may not be allowed to avoid subsequent use of one ticket by multiple people, or even simultaneous use by giving the ticket to someone before the ticket check (if this is physically possible), but it may also be allowed, ex: in a movie theatre to buy, during a movie, a snack or drink before the ticket check and reenter.

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Wikipedia