Some buses or premium services?
If premium services, I believe these will help a fair bit:
Choa Chu Kang to Shenton Way District (routing in CCK up to you),
may x2, one to cover CCK Crescent and the Yew Tee area, the other
for Central?
Bukit Panjang to Shenton Way District (routing in BPJ up to
you)
Woodlands to Shenton Way District (routing in WDL up to you), may
x2.
Bukit Batok to Shenton Way District (routing in BBT up to you), may
x2. (one straight from BBT West Avenue 3 --> Central --> East
Avenue 3 --> EXPRESS, the other from Bukit Gombak area?)
Yishun to Shenton Way District (not sure about this area. Haha)
