I’ve seen that video. Look at Joint Base Andrews. It runs 01/19. look at the satellite images; that is true north.
I am not 100% sure what you mean, but I hope I can clear up some confusion: The runways are as many said already based on the magnetic heading. Nonetheless the true heading in many cases would lead to the same name and hence you might have the impression that the number is based on the true heading when in fact it’s based on the magnetic heading.
That’s the reason why runway numbers change over time in some cases (e.g. recently in Geneva).
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