SBS Transit Bus Service 122

SBS Transit Bus Service 122 is a residential trunk route running between Kampong Bahru Bus Terminal and Commonwealth Drive, passing through Tiong Bahru, Alexandra Road, Kay Siang Road, Margaret Drive and Commonwealth MRT Station. It was introduced on 15 Mar 2015 as the 38th bus service under the Bus Service Enhancement Programme (BSEP).

Bus Service 122 will be amended to Kampong Bahru Bus Terminal from 10 March 2018.

Bus Service 122: Kampong Bahru – Commonwealth Drive (Loop)
From Kampong Bahru Ter Looping at Commonwealth Dr
  • Spooner Rd
    – Kampong Bahru Ter
  • Kg Bahru Rd
    – Opp Kampong Bahru Ter
  • Eu Tong Sen St
    – Aft Hosp Dr EW16NE3
  • Outram Rd
    – Opp Outram Pk Stn EW16NE3
  • Tiong Bahru Rd
    – Blk 55
    – Blk 18
    – Ctrl Green Condo
    – Opp Tiong Bahru Plaza EW17
  • Lower Delta Rd
    – Opp Blk 48
  • Alexandra Rd
    – Gan Eng Seng Sec Sch
    – Delta Sports Hall
    – Opp Tanglin View
  • Tanglin Rd
    – Aft Margaret Dr
  • Kay Siang Rd
    – Aft Tanglin Rd
    – Bef Margaret Dr
  • Margaret Dr
    – Queenstown Pr Sch
    – Opp Queenstown Lib
    – The Fisherman Ch
    – Queensway Sec Sch
  • Queensway
    – Opp Queensway Sec Sch
  • Commonwealth Dr
    – Blk 92
    – Opp Blk 115B
  • Commonwealth Ave
    – C’wealth Stn Exit B/C EW20
  • Margaret Dr
    – Opp The Fisherman Ch
    – Queenstown Lib
    – Opp Queenstown Pr Sch
  • Kay Siang Rd
    – Aft Margaret Dr
    – Bef Tanglin Rd
  • Tanglin Rd
    – Crescent Girls’ Sch
  • Alexandra Rd
    – Tanglin View
    – Opp Delta Sports Hall
    – Opp Gan Eng Seng Sec Sch
  • Lower Delta Rd
    – Blk 48
  • Tiong Bahru Rd
    – Tiong Bahru Plaza EW17
    – Blk 1
  • Outram Rd
    – Bef Outram Flyover
    – Outram Park Stn EW16NE3
  • New Bridge Rd
    – Bef Neil Rd
  • Kg Bahru Rd
    – Bef Kampong Bahru Ter
  • Spooner Rd
    – Kampong Bahru Ter


Technical Information
Route  Kampong Bahru Bus Terminal ↺ Commonwealth Drive (Loop)
Passes Through Tiong Bahru, Alexandra Rd, Kay Siang Rd, Margaret Dr, Commonwealth MRT
Route Length 16.6 km
Travelling Time 70 mins
Operator Information
BCM Route Package Bukit Merah Bus Package
Current Operator SBS Transit Ltd
Current Depot Ang Mo Kio Bus Depot (AMDEP)
Current Fleet 12-metre Single Deck Bus:
– Mercedes-Benz Citaro
Scania K230UB
Departure Times from Kampong Bahru
0555hrs  2330hrs (Daily)
Frequency Loop Service
0630hrs – 0830hrs: 11 – 13 mins
0831hrs – 1659hrs: 12 – 16 mins
1700hrs – 1900hrs: 13 – 17 mins
After 1900hrs: 13 – 17 mins


Route History

Service 122 provides residents of Tiong Bahru, Alexandra, and Commonwealth Drive with greater connectivity to Outram Park, Tiong Bahru and Commonwealth MRT Stations, along with other amenities in the vicinity. It is the thirty-eighth (38th) bus service to be introduced under the Bus Service Enhancement Programme (BSEP), and the third new BSEP service originating from New Bridge Road after Service 121.

The inter-town service improves on existing bus connections in certain areas, notably Commonwealth Drive (previously only served by Service 195), and Margaret Drive (previously only served by Service 32), linking residential estates and amenities with transport nodes and enhancing connectivity to these areas. Apart from benefiting new residential developments near Dawson Road, such as the new HDB Skyville@Dawson and SkyTerrace developments, the route will serve schools – Gan Eng Seng, Manasseh Meyer, Queenstown Primary, Queensway Secondary, Assumption English, Crescent Girls and Alexandra Primary – as well as amenities such as Tiong Bahru Plaza and Singapore General Hospital.

The service also calls at a new pair of bus stops along Kay Siang Road, which had bus stop provisions constructed years ago but did not receive any bus services until now.

In March 2018, Service 122 was amended to serve Kampong Bahru Bus Terminal following the closure of New Bridge Road Bus Terminal.

MRT Stations Served
Special Departures
  • Commonwealth Drive (Blk 92)  Kampong Bahru Ter
    Weekdays: 0600hrs, 0614hrs
    Saturdays / Eve of PH: 0600hrs, 0613hrs
    Sundays / Public Holidays: 0600hrs, 0611hrs

Fare: Charges basic distance fares. See Bus Fares. Calculate your bus fare using LTA’s fare calculator on here.


Operator History
  • 2015 – Present: SBS Transit Ltd

The Bus Service Operating License (BSOL) for this route will be renewed in 2018 under the Bukit Merah Bus Package.


Past Routings:

External Links & References

Back to Bus Services
Back to Bus Articles

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