In message , at 10:49:52 on
Sat, 16 Nov 2013, David Walters remarked:
Install barriers and make anyone who hasn't already got a "premium" ticket
buy a (suggest 5 pound!) excess from a machine

These barriers don't seem to restrict the passenger flow at MAD and that's
with this being the only rail connection to the airport

Of course, they will have to stop giving "free" rides from T123 to T4 (etc)

Couldn't they just issue free tickets for use between the terminals that
are only available at the terminals? Perhaps only valid for half an hour
or something.

That's similar to what they do at Geneva. A free public transport ticket
available only airside, valid for 80 minutes [to the city, rather than
other terminals].
--
Roland Perry