More the layout of the terminals Nige. If you're unlucky enough to get pipped by another aircraft for a pushback out of T2 there, then having to wait for inbound aircraft, you can be left waiting for up to 15-20 minutes (that's my record) before you're allowed to push!
The taxiway layout around the T2 area as well could be very easy for someone unfamiliar with it, to get the wrong taxiway.
It's not the most efficient layout, put it that way.
Mick
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