I suggest that they can start FF Sv 107E
Starting from Hougang Central to Shenton Way in the morning and
vice versa in the evening.
Here as my following suggested route: Hougang Central Int , Hougang
Ave 10 and 2, Upper Serangoon Rd(up to Kovan MRT) then express
using the UPS highway until to Potong Pasir opp Blk 101, Potong
Pasir MRT, Bendemmer Rd. Geylang Bahru, Lavender St , Lavender MRT station,
Jln Sultan, Beach Rd, Connaught
Drive, Collyer/Raffles Quay, Shenton Way (morning
route)
Operating hours: 0715-0830 Frequency: 15 mins
Evening route: Anson Rd, Robinson Rd, Fullerton Square, Beach Rd,
Jln Sultan, Lavender MRT, Lavender Rd, Geylang Bahru, Bendemmer
Rd, Serangoon Rd, Potong Pasir MRT, Blk 101, then express using the
UPS highway until Kovan MRT, Upper Serangoon Rd, Hougang Ave 2/10,
Hougang Central Int
Operating hours: 1730-1845 Frequency: 15 mins