From what I saw during construction, it was insulated but as for heating, I have no idea. I shall ask a contractor on the way in today. Looking at the glass section which crosses over the main gate road, the walkway appears to be partitioned (as many long walkways are), presumably to separate the inbound and outbound hordes.
No doubt, as
MV says, there will be moans about the 'long walk'. Well, it'll be just as long a walk for I and my colleagues to get to Starbucks, but I'm sure we'll cope!
Oh, and the miserable beggars haven't put enough windows in the north side of it, so the travelling public will be spared the sight of a 'full moon'.