SBS Transit Bus Service 90

SBS Transit Bus Service 90 is a trunk route from Toa Payoh Int and looping at Airport Road, passing through PIE and MacPherson Rd.

^ SBST Scania K230UB (SBS5199D) – Service 90

Route Information
Route Toa Payoh Bus Interchange ↺ Airport Road  WAB_logo_20px
Passes Through PIE, MacPherson Rd
Route Length 16.4km
Travelling Time 70mins
Operator Information
Current Operator SBS Transit
Current Depot Braddell Bus Park (BRBP)
Current Fleet 12-metre Double Deck Bus:
Volvo B9TL

12-metre Single Deck Bus
Mercedes-Benz O530 Citaro
Scania K230UB
Departure Times from T1 0600 – 2330 (Daily)
Frequency Loop Service
0630-0830: 07 – 19 mins
0831-1659: 08 – 22 mins
1700-1930: 08 – 15 mins
After 1930: 15 – 22 mins

Route History

Service 90 plies between Toa Payoh and Paya Lebar Airbase, providing bus connections to staff working at industries along Airport Road along with Service 94. Demand is concentrated around the peak hours, with large numbers of split-shift buses catering towards the office crowds.

The service also connects the whole of MacPherson Road to Toa Payoh along with Service 8. Double decks have been deployed since 2013.

SBST Volvo Olympian 3-axle (SBS9624S) - Service 90A

SBST Volvo Olympian 3-axle (SBS9624S) – Service 90A

Shortworking Trips

  • Service 90A: Toa Payoh Int → Airport Rd (Paya Lebar Air Base)
    Weekdays AM Peak Only

Fare: Charges fares for regular trunk services. See Bus Fares for exact fares.

Fleet: Service 90 operates a mix of Volvo B9TL Wrights, Volvo B10TLs, Scania K230UBs, and Mercedes-Benz Citaros. A Volvo B9TL Wright was added under the BSEP scheme.

Route Information:

Loop Service
  • Toa Payoh Int
  • Lor 6 Toa Payoh
  • Jln Toa Payoh
  • MacPherson Rd
  • Airport Rd
  • MacPherson Rd
  • Jln Toa Payoh
  • Lor 6 Toa Payoh
  • Toa Payoh Int
Service 90 at a glance. Click for larger image.

Service 90 at a glance. Click for larger image.

Operator History:

  • 1993 – 2001: Singapore Bus Services Ltd
  • 2001 – Present: SBS Transit Ltd

The Bus Service Operating License (BSOL) for this route will be renewed in 2016.



  • 1993 (23 May): Introduced as Toa Payoh – Airport Rd (Loop).
  • 1998 (31 May): Terminus relocated to Toa Payoh Temp Int
  • 2002 (19 May): Terminus relocated to air-conditioned Toa Payoh Integrated Transport Hub (ITH)
  • 2011 (04 Sep): No longer calls at the bus stop after Moonstone Lane along Serangoon Rd due to the closure of Whampoa North.
  • 2013: Service improvement under the Bus Service Enhancement Programme (BSEP)
  • 2013 (03 Dec): Designated wheelchair-accessible bus route (WAB)

Past Routings:


External Links & References:

Back to Bus Services
Back to Bus Articles

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