I went to Changi Airport's Terminal 3 today. Some things I
noticed are:
1. The barriers used before entering Changi Airport's Terminal 3 is
the same as those used in Terminal 1; in this case, a crash barrier
(without the 'teeth').
2. As mentioned by 'sbst275', it's indeed a long way into Terminal
3's basement. It takes about a minute to get in there.
So you might ask, what's in there? Why is it so long? From my point
of view, I would think it's either the row of shops or it could be
a place for loading/unloading goods (I remember seeing one).
3. The signs for Scheme B's Service 646 and 651 are at the berths,
but I'm not sure whether both services go there. I didn't see any
Scheme B buses going there.
4. When going from the bus terminal to the lift or escalator, the
walking distance is pretty quite long too - about a two to three
minute walk into the building and then having to go up the lift or
the escalator. I had to walk past untiled pieces of carpet just to
get to the bus terminal and back so that I could go back to
Terminal 2.
Do note that some info that I provided may be inaccurate. To know
more about Changi Airport's Terminal 3, you can take a bus there by
yourself.