SBS Transit Bus Service 170A

SBS Transit Bus Service 170A is a parallel bus service operating alongside its parent cross-border Service 170 (Red Plate). Plying unidirectionally from Queen Street Terminal to Woodlands Train Checkpoint at Woodlands Centre Road via Rochor, Bukit Timah, Upper Bukit Timah and Woodlands Road, the route duplicates the local sectors of Service 170 without crossing the border.

Previously an ad-hoc service, it was formally introduced from Sunday, 27 December 2015 to operate daily.


Route Details (Click to expand)
Bus Service 170A: Queen Street → Woodlands Centre Road
  • Queen St
    – Queen St Ter EW12DT14
  • Rochor Rd
    – Fu Lu Shou Cplx EW12DT14
  • Rochor Canal Rd
    – Rochor Stn DT13
  • Bt Timah Rd
    – Little India Stn Exit A NE7DT12
    – Opp KK Women & Child Hosp
    – Bef Winstedt Rd
    – Newton FC
    – Newton Stn Exit C NS21DT11
    – Balmoral Plaza
    – City Twrs
    – Leng Kwang Baptist Ch
    – Stevens Stn DT10
    – Bef Lewis Rd
    – NUS Bt Timah Campus
    – Botanic Gdns Stn CC19DT9
    – Bef Crown Ctr
    – Coronation Plaza
    – Tan Kah Kee Stn DT8
    – Chinese High Sch
    – Opp Natl JC
    – Sixth Ave Stn DT7
    – Sixth Ave Ctr
    – Aft Maple Ave
    – The Tessarina
    – The Nexus
    – King Albert Pk Stn DT6
    – King Albert Pk
  • Upp Bt Timah Rd
    – Pei Hwa Presby Pr Sch
    – Beauty World Stn Exit B DT5
    – Woh Hup Bldg
    – Bt Regency
    – Aft Old Jurong Rd
    – Hume Pk Condo
    – Opp The Rail Mall
    – Hillview Stn DT3
    – Opp Dairy Farm Rd
    – Opp Assumption Eng Sch
    – Bef Cashew Stn DT2
    – Min of Defence
    – Opp The Linear
    – Bt Panjang Stn Exit B DT1BP6
  • W’lands Rd
    – Ten Mile Junction Stn BP14
    – Opp Blk 632 CP
    – Opp Blk 635A
    – Bef Yew Tee Flyover
    – Aft Yew Tee Flyover
    – Heavy Veh Pk
    – Yew Tee Ind Est
    – Thong Huat Bros Pte Ltd
    – Da Di Glass
    – Opp Mandai Est
    – Bef Mandai Rd
    – Opp Jln Bumbong
    – Aft LP 234
    – Opp Kranji War Memorial
    – Opp S’pore Turf Club
    – Opp Kranji Stn NS7
    – Bef W’lands Ind Pk D St 2
    – Kranji Lodge 1
    – Bef BKE
  • W’lands Ctr Rd
    – W’lands Train Checkpt


Technical Information
Route WAB_logo_20px
Queen Street Bus Terminal Woodlands Centre Road (Woodlands Train Checkpt)
Passes Through Rochor, Bukit Timah, Upp Bukit Timah, Woodlands Rd
Route Length 23.8 km
Travelling Time 60 mins
Operator Information
BCM Route Package Bukit Merah Bus Package
Current Operator SBS Transit Ltd
Current Depot Bukit Batok Bus Depot (BBDEP)
Current Fleet 12-metre Single Deck Bus:
Mercedes-Benz O530 Citaro
Scania K230UB
Departure Times from Queen Street
0600hrs – 0000hrs (Daily)
Frequency Unidirectional Service
0630 – 0830: 19 – 20 mins
0831 – 1659: 16 – 26 mins
1700 – 1900: 21 – 26 mins
After 1900: 15 – 21 mins

Route History

Service 170A is parallel bus service supplementing trips of its parent cross-border Service 170 (Red Plate). Plying unidirectionally from Queen Street Bus Terminal to Woodlands Train Checkpoint, the route duplicates the local sectors of Service 170 without crossing the border. Calling it a shortworking trip would be a misnomer – its route is far from short, standing at 23.8km long.

The route is designed to improve the reliability of its parent service 170 without sacrificing existing scheduled trips. Despite the Downtown Line and the other bus routes it duplicates along the Bukit Timah and Upper Bukit Timah corridor, SBS Transit has strived to continue keeping Bus 170 reliable for commuters who need it. Formerly operating at dismal frequencies owing to congestion across the Causeway and dodgy timekeeping, dedicated buses now reliably ply the local sectors of Service 170 in both directions. Hence was the need for Service 170A, differentiating the local buses from the cross-border buses by terminating at Woodlands Centre Road (Woodlands Train Checkpoint) before returning to Queen Street Terminal.

‘Withdrawn’ in the early 2000s, there was no mention of Service 170A until its reappearance in 2014 as an ad-hoc service. Details were not published by SBS Transit although they operated on weekend evenings to ease the high demand between Little India and workers’ dormitories along Woodlands Road, using cross-border buses drawn from Service 170’s fleet. Only on Sunday, 27 December 2015 was Service 170A formally introduced as a full-day service, operating daily.

Following the introduction of Service 170A, departures of Service 170 (Red Plate) were reduced.

Mode of operation

A full trip of Service 170A from Queen Street Terminal to Woodlands Centre Road (Woodlands Train Checkpoint) takes about one hour, and all passengers must alight at the terminating stop. The bus will then proceed to the next stop, Woodlands Centre Road (Opp Blk 1A), and begin its return journey towards Queen Street Terminal, operating as Service 170. For drivers, 170A would be more of a loop service with little time to rest at the looping point.

Service 170A buses and their drivers operate independently of Service 170 despite the many similarities. Their buses do not cross the border, and as such, are able to use non-cross-border buses such as Mercedes-Benz O530 Citaros. As such, local bus drivers can be deployed to Service 170A (Currently, SBS Transit rosters only Malaysian drivers to cross-border services). Departures from Queen Street Terminal are staggered with its parent Service 170 (Red Plate) to space buses apart.

MRT/LRT Stations served:

Route Variants

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

Fleet: Mercedes-Benz Citaro and Scania K230UB buses are commonly deployed on Service 170A and subsequently perform special departures back down to Queen Street Ter from Woodlands Centre Rd. These buses do not need to be JB-registered as they do not cross the border into Malaysia.


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.


  • 2015 (27 Dec): Official introduction of Shortworking Trip 170A with enhanced operating hours and terminating at Woodlands Train Checkpoint
  • 2016 (11 Dec): Serves new Bus Stop 43991, Opp Blk 635A, along Woodlands Road
  • 2017 (28 May): Calls at relocated bus stop 47071 Bef Mandai Rd and no longer calls at bus stop 45081 Opp Mandai Rd along Woodlands Rd.
  • 2017 (21 Aug): Designated wheelchair-accessible bus route (WAB)

Past Routings:

External Links & References:

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