Why do airports put An X over the runway number?

Call me a noob but why do airports like mine put X’s over there runway numbers?

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When an ‘X’ is put over a runway number, it signifies that a runway is permanently no longer in use, or is closed for maintenance.

Example of Berlin Tempelhof, when the airport closed in 2008:
runway-left

Example of Dover Air Force base, where the runway is temporarily closed for maintenance:
download

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When an X is placed on a runway, it is closed permanently, meaning it is not safe to land there.

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It can be permanently closed or closed for a temporary period, for maintenance for example. Both ways.

https://www.airliners.net/forum/viewtopic.php?t=152839

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Hey Aiden,

In airport editing, when you edit an airport with a X on the runway… You should change the runway to a taxiway instead with no markings on it.

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Thanks BallonChaser!

May i still add the X. ?

Nope. X’s do not get added

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Alright well thanks guys! This topic can be closed now.

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Asheville Regional Airport is a great example. In IF, the runways are 16/34 but IRL they are 17/35 temporarily as it is a temporary runway while 16/34 are rebuilt.