Originally Posted by Prospero

There are transfer nodes spread out across T1. I have the following images stored in my phone which I frequently refer to whenever I am connecting at HKG.

Originally Posted by corporate-wage-slave

There is actually only one terminal in HKG in terms of flights, but two terminals for checking in. T2 is just a separate check-in area on the other side of the railway line, it has its own security in the basement, and then a mini transit which takes you the very short distance back under the railway line to T1.