Originally Posted by
catandmouse
Well LHR does actually do it with domestic connections, just send connecting pax up the escalators to the departure level. If they do it for domestics no real reason it can't be done for other flights. Could even be selective so it's available for "trusted" arrivals, but not others.
Of course doing so would take pressure off flight connections, but we don't really want any of that do we
it could be done, but either means a lot more bus transits to a clean area in A from B and C or or a huge infrastructure expense to stop clean and unclean PAx mixing on the train from B and C to A
it works in some bits of FRA (T1 Z) because they can feed the arrivals into 2 different levels keeping clean and unclean appart till unclean have been screened but not other bits (T1 B) so arriving on LH from LHR you sometimes get security, sometimes not