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Re:Whiteboards used after Gatwick flight information screens... by rleigh on Monday August 20, 2018 @12:55PM (#17801544)
Or even the option of inputting the data manually on a local system, so they could use the big displays rather than some whiteboards!
Re:Whiteboards used after Gatwick flight information screens... by mbreese on Monday August 20, 2018 @01:37PM (#17801968)
As someone above already mentioned — the whiteboards themselves also convey the message of “something is wrong, you may want to verify this info” very well.

The medium is the message, etc...