And most of services (169, 173, 178, 187 should be the best
example) for AM08/PM08 (For example), will use different bus. For
example, AM08 uses TIB590X, then PM08 uses SMB128B.
AM08/PM08 will use the same bus, unless it is a split shift -
correct me if i am wrong
if lets say 486P gets the 178 AM08/PM08(last bus slot at
Woodlands) slot, it will do the slot on that day itself, unless
there is a breakdown.