Originally Posted by
SKT-DK
As BinSabai mentioned, the fast track is located inbetween the two main immigration halls, but there is a small one to the right of the East immigration hall as well, which I was directed to last time through, as for whatever reason the fast track was being reserved for air crew only . . . .
I too was directed through the alternative one on my last arrival at the end of March this year and know of others as recent as last week. It's poorly signposted so keep a look out, or ask if you don't see it and the main area looks busy.