Not true:
27 has high loading all the way from Sengkang to Tampines (if
there is a DD, there might not be need for 27A)
36 has high loading from Marine Parade all the way to Tomlinson
(if there is a DD, there is no need for 36A)
53 has high loading from Bishan to Serangoon and again Serangoon
to Pasir Ris (though frequency is 05 minutes)
I agree we need a DD-friendly bus interchange, and not one in
the basement which is inconvenient.
27 is packed totally THROUGHOUT THE ROUTE.