underfire you sound like an idiot mate.
the system is well organised and large aircraft never fly to a destination without full knowledge of the runway capabilities at the destination.
in australia the publication is called ERSA, en-route supplement australia and additionally there is the RDS, runway and distance supplement.
in those publications are full details of conditions at all runways used by commercial aircraft. there are similar publications world wide.
If the aircraft is 2nm left of centerline
where do you come up with this nonsense? microsoft flight sim??