Scheme B buses were introduced in 1974 to supplement SBS bus routes, especially on high demand routes, starting off with an initial of 50 routes. Currently, Scheme B operates 7 bus routes.
Operational hours are during the morning peak hours for its forward trips and evening peak hours for its return trips.
|625||Boon Lay Place - Dhoby Ghaut Stn (Morning Peak)|
Robinson Rd (opp Ogilvy Ctr) - Boon Lay Place (Evening Peak)
|628||MacPherson Estate - Shenton Way|
|640||Admiralty Road West - Shenton Way|