The sports insiders will be more than the VIPs, for example atheletes'
families. I'd expect them to be using public transport.

That's an interesting point -- is there any provision to house at least
some athletes' families in the village, or are they on their own,
needing to find hotel rooms like any ordinary spectators? Many athletes
are just immature teenagers, possibly unused to international travel, so
they may find the whole experience of getting around London quite
daunting. Their families may also be unused to it, so may not be able to
provide much support.

The brother of a friend of mine competed at the Atlanta games in 1996,
and my friend and his family were put up with a family in Atlanta - so
not in the village, but they were 'assisted' with accommodation. I guess
this year will be no different.