SMRT Bus Service 171

SMRT Bus Service 171 is a trunk route linking Yishun and Marina Centre, passing through Mandai Road, BKE, Bukit Panjang, Upper Bukit Timah, Bukit Timah, Scotts Road, Orchard, Dhoby Ghaut and Bras Basah.

From 16 August 2020, the route of Bus Service 171 will be shortened to Yishun – Bukit Panjang MRT (Loop).

59009 Yishun Int NS13 Yishun Ave 2
59141 Blk 741 Yishun Ave 5
59111 Blk 701 Yishun Ave 5
57089 Blk 713 Sembawang Rd
57079 Khatib Camp Sembawang Rd
57069 Opp Dieppe Barracks Sembawang Rd
57059 Opp Sembawang Air Base Sembawang Rd
48149 Mandai Crematorium & Columbarium Mandai Ave
48069 Aft Mandai Ave Mandai Rd
48059 Opp Mandai Agrotech Pk Mandai Rd
48049 Bef Jln Ulu Sembawang Mandai Rd
48039 LP 159 Mandai Rd
48029 Bef Mandai Lake Rd Mandai Rd
48019 Mandai Camp 2 Mandai Rd
44269 Blk 223 Bt Panjang Rd
44229 Bef Pending Stn BP8 Pending Rd
44219 Bet Blks 139/140 Petir Rd
44209 Opp Petir Stn BP7 Petir Rd
44731 Opp Blk 180 DT1-BP6 Jelebu Rd
44909 Blk 184 Bt Panjang Rd
44029 Bt Panjang Stn Exit A/Lrt DT1-BP6 Upp Bt Timah Rd
44019 The Linear Upp Bt Timah Rd
43119 Bef Hazel Pk Terr Upp Bt Timah Rd
43109 Cashew Stn DT2 Upp Bt Timah Rd
43099 Assumption Pathway Sch Upp Bt Timah Rd
43089 Aft Assumption Eng Sch Upp Bt Timah Rd
43069 HILLVIEW STN EXIT A DT3 Upp Bt Timah Rd
43059 The Rail Mall Upp Bt Timah Rd
43049 Opp Hume Pk Condo Upp Bt Timah Rd
43029 Opp The Hillside Upp Bt Timah Rd
43019 Springdale Condo Upp Bt Timah Rd
42119 Southaven II Upp Bt Timah Rd
42109 Opp Beauty World Ctr DT5 Jln Anak Bt
42089 Opp Bt Timah Plaza Jln Anak Bt
42059 Opp King Albert Pk Stn DT6 Dunearn Rd
42049 Hua Guan Gdns Dunearn Rd
42039 Opp The Nexus Dunearn Rd
42029 Aft Swiss Club Rd Dunearn Rd
42019 Opp Sixth Ave Stn DT7 Dunearn Rd
41089 Aft Jln Naga Sari Dunearn Rd
41079 Natl JC Dunearn Rd
41069 Opp Tan Kah Kee Stn DT8 Dunearn Rd
41049 Opp Coronation Plaza Dunearn Rd
41029 Opp Botanic Gdns Stn CC19DT9 Dunearn Rd
41019 Aft Kheam Hock Rd Dunearn Rd
40099 Aft Dunkirk Ave Dunearn Rd
40089 Opp Stevens Stn DT10 Dunearn Rd
40079 Bef Swiss Cottage Est Dunearn Rd
40119 Bef Goldhill Ave Dunearn Rd
40069 Anglo-Chinese Sch Dunearn Rd
40059 Chancery Ct Dunearn Rd
40049 Opp Newton Stn Exit C NS21-DT11 Dunearn Rd
40189 Newton Stn Exit B NS21-DT11 Scotts Rd
40179 Env Bldg Scotts Rd
09219 Far East Plaza Scotts Rd
09047 Orchard Stn/Tang Plaza NS22 Orchard Rd
09037 Opp Mandarin Orchard NS22 Orchard Rd
08138 Concorde Hotel S'pore Orchard Rd
08057 Dhoby Ghaut Stn NS24NE6CC1 Orchard Rd
08069 Bencoolen Stn Exit B DT21 Bras Basah Rd
04179 Aft Bras Basah Stn Exit A CC2 Bras Basah Rd
02049 Raffles Hotel Bras Basah Rd
02089 Pan Pacific Hotel Raffles Blvd
02099 Marina Centre Ter Raffles Blvd
02099 Marina Centre Ter Raffles Blvd
02101 Aft Singapore Flyer Raffles Ave
02051 The Float @ Marina Bay Raffles Ave
02061 The Esplanade Raffles Ave
04111 Capitol Bldg EW13NS25 Stamford Rd
04121 SMU CC2 Stamford Rd
08041 YMCA Orchard Rd
08031 Dhoby Ghaut Stn Exit B NS24NE6CC1 Penang Rd
08111 Winsland Hse Penang Rd
08121 Somerset Stn NS23 Somerset Rd
09011 Opp Ngee Ann City Orchard Turn
09023 Opp Orchard Stn/ION NS22 Orchard Turn
09212 Royal Plaza On Scotts Scotts Rd
40171 Opp Env Bldg Scotts Rd
40181 Newton Stn Exit A NS21-DT11 Scotts Rd
40041 Newton Stn Exit C NS21-DT11 Bt Timah Rd
40051 Balmoral Plaza Bt Timah Rd
40111 City Twrs Bt Timah Rd
40071 Leng Kwang Baptist Ch Bt Timah Rd
40081 Stevens Stn DT10 Bt Timah Rd
40091 Bef Lewis Rd Bt Timah Rd
41011 NUS Bt Timah Campus Bt Timah Rd
41021 Botanic Gdns Stn CC19DT9 Bt Timah Rd
41031 Bef Crown Ctr Bt Timah Rd
41041 Coronation Plaza Bt Timah Rd
41051 Tan Kah Kee Stn DT8 Bt Timah Rd
41061 Chinese High Sch Bt Timah Rd
41071 Opp Natl JC Bt Timah Rd
41081 Sixth Ave Stn DT7 Bt Timah Rd
42011 Sixth Ave Ctr Bt Timah Rd
42021 Aft Maple Ave Bt Timah Rd
42031 The Tessarina Bt Timah Rd
42041 The Nexus Bt Timah Rd
42051 King Albert Pk Stn DT6 Bt Timah Rd
42061 King Albert Pk Bt Timah Rd
42071 Pei Hwa Presby Pr Sch Upp Bt Timah Rd
42091 Beauty World Stn Exit B DT5 Upp Bt Timah Rd
42111 WOH HUP BLDG Upp Bt Timah Rd
43011 Bt Regency Upp Bt Timah Rd
43021 Aft Old Jurong Rd Upp Bt Timah Rd
43041 Hume Pk Condo Upp Bt Timah Rd
43051 Opp The Rail Mall Upp Bt Timah Rd
43061 Hillview Stn DT3 Upp Bt Timah Rd
43071 Opp Dairy Farm Rd Upp Bt Timah Rd
43081 Opp Assumption Eng Sch Upp Bt Timah Rd
43091 Bef Cashew Stn DT2 Upp Bt Timah Rd
43111 Min Of Defence Upp Bt Timah Rd
44011 Opp The Linear Upp Bt Timah Rd
44021 Bt Panjang Stn Exit B DT1-BP6 Upp Bt Timah Rd
44251 Bt Panjang Stn/Blk 604 DT1-BP6 Bt Panjang Rd
44739 Blk 180 Jelebu Rd
44201 Aft Petir Stn BP7 Petir Rd
44211 Blk 127 Petir Rd
44221 Opp Pending Stn BP8 Pending Rd
44261 Blk 270 Bt Panjang Rd
48011 Opp Mandai Camp 2 Mandai Rd
48021 Aft Mandai Lake Rd Mandai Rd
48031 LP 162 Mandai Rd
48041 Aft Jln Ulu Sembawang Mandai Rd
48051 Mandai Agrotech Pk Mandai Rd
48061 Bef Mandai Ave Mandai Rd
48141 Opp Mandai Crematorium & Columbarium Mandai Ave
57051 Aft Sembawang Air Base Sembawang Rd
57061 Dieppe Barracks Sembawang Rd
57071 Opp Khatib Camp Sembawang Rd
57081 Opp Blk 713 Sembawang Rd
59119 Opp Blk 701A Yishun Ave 5
59149 Blk 145 Yishun Ave 5
59009 Yishun Int NS13 Yishun Ave 2

  • No boarding and alighting at Marina Centre Terminal.


Technical Information
Route WAB_logo_20px
Yishun Bus Interchange Marina Centre Bus Terminal
Passes Through Mandai Rd, BKE, Bukit Panjang, Upp Bukit Timah, Bukit Timah, Orchard, Bras Basah
Route Length 34.4 km (D1) | 34.3 km (D2)
Travelling Time 110 mins
Operator Information
BCM Route Package Sembawang – Yishun Bus Package
Current Operator SMRT Buses Ltd
Current Depot Ang Mo Kio Bus Depot (AMDEP)
Current Fleet 12-metre Double Deck Bus:
Alexander Dennis Enviro500
(Double Decker Bus Deployments on Sundays & Public Holidays)
12-metre Single Deck Bus:

– MAN A22
Departure Times from Yishun
0530 – 2330 (Daily)
Departure Times from Marina Centre
0545 – 2330 (Daily)
Frequency Direction 1
Direction 2
0630 – 0830: 10 – 13 mins
0831 – 1659: 10 – 14 mins
1700 – 1900: 10 – 15 mins
After 1900: 11 – 15 mins
0630 – 0830: 10 – 11 mins
0831 – 1659: 10 – 13 mins
1700 – 1900: 10 – 11 mins
After 1900: 11 – 13 mins

Service 171 is an inter-town route serving between the areas of Yishun, Bukit Panjang, Upper Bukit Timah, Bukit Timah, Newton, Orchard Road, Bras Basah and Marina Centre. It is a key inter-town connection between the towns of Yishun and Bukit Panjang, via BKE and Mandai Road, with no other public bus route offering a faster route. It was also well-patronized between the Orchard area and Bukit Timah with few duplicating routes before the Downtown Line Stage 2 opened.

In addition, the service provides bus connections to many institutions along the Dunearn Road / Bukit Timah Road academic belt. A large portion of its route runs parallel to Service 67 and 170 (between Newton and Bukit Panjang), as well as the Downtown Line Stage 2. Demand is moderate throughout the day but high during peak hours (especially between Bukit Timah and the City.) and during school dismissal hours. High capacity bendy buses are deployed occasionally, especially during special occasions such as route diversions and festive seasons.

This service plies a short express sector on the Bukit Timah Expressway (BKE), between Mandai Road and Bukit Panjang Road. Despite sharing the Yishun – Marina Centre connection with Service 857, it plies a much longer route, serving Bukit Panjang and (almost) the full stretch of Upper Bukit Timah & Bukit Timah Road.

No boarding and alighting is allowed at Marina Centre Terminal. The last stop for Marina Centre bound buses is at Raffles Boulevard (02089 Pan Pacific Hotel), and the first stop for Yishun bound buses is at Raffles Avenue (02101 Bef Temasek Ave).

Formerly a Singapore Bus Service (SBS) route since the 1970s, the route was transferred to Trans-Island Bus Service (TIBS) in 1995 and has been operated by SMRT ever since.

Double Decker Bus Deployments

On 24 August 2015, SMB5059J (Alexander Dennis Enviro500) performed Service 171 in the evening as part of a crossover slot (969S151). On its maiden trip from Yishun to Marina Centre, the bus was withdrawn from revenue service at Bukit Panjang by the Operations Control Centre (OCC), which was likely due to the route not being officially certified as ready for double-decker deployment.

Another incident happened on 08 December 2016, where a MAN A95 Bus (SG5744S) performed Service 171 for several trips before being pulled out of service.

From 12 August 2018, double-decker buses will be deployed on high-capacity bus slots on Service 171 on Sundays / Public Holidays instead of articulated buses.

DTL2 Bukit Panjang Bus Service Enhancements

As part of DTL2 Bukit Panjang Bus Service Enhancements, Service 171 towards Marina Centre will call at a new bus stop, Bt Panjang Rd – Blk 184 instead of Bukit Panjang Rd – Blk 183 from 27 December 2015. Yishun bound Service 171 will still call at Bt Panjang Rd – Blk 604.

Opening of Bukit Panjang ITH Bus Service Amendments

As part of the Bus Service Amendments for Bukit Panjang ITH Opening, Bus Service 171 will skip the pair of bus stops along Jelebu Rd, serving Opp and Outside Bukit Panjang Plaza to “better manage traffic flow” outside Bukit Panjang Integrated Transport Hub from 04 Sep 2017.

The morning special departures from Jelebu Rd both towards Yishun and Marina Centre will also be adjusted to start from the next stop.

This amendment was reverted effective 25 Feb 2018 with Service 171 calling at a pair of bus stops (Blk 180 / Opp Blk 180) along Jelebu Road.

Special Departures
  • Bt Panjang Rd (Bt Panjang Stn/Blk 604)  Yishun Int
    Weekdays: 0540hrs & other trips before 0640hrs
    Saturdays: 0615hrs & other trips before 0640hrs
  • Petir Rd (Opp Petir Stn) Marina Ctr Ter
    Weekdays: 0525hrs & other trips before 0605hrs
MRT/LRT Stations Served

Fare: Charges basic distance fares. See Bus Fares.



Operator History:

  • 1971 – 1973: United Bus Company Pte Ltd
  • 1973 – 1995: Singapore Bus Services Ltd
  • 1995 –  2004: Trans-Island Bus Services Ltd
  • 2004 – Present: SMRT Buses Ltd

The Bus Service Operating License (BSOL) for this route will be renewed in 2020 under the Sembawang – Yishun Bus Package.


  • 1971 (11 Apr): Introduced as Service 171 plying Mandai Rd (Near Sembawang Rd) – Queens St Ter
  • ???: Amended to Sembawang Rd (near Nee Soon Camp), ??? Amended to serve Mandai Lake Rd, ??? Amended to ply Orchard Rd
  • 1987 (18 Jan): Amended to Yishun Ctrl
  • 1987 (23 Aug): Amended to Yishun Int
  • ???: Amended to Marina Centre Ter
  • 1993 (03 Jan): Amended into Bt Panjang town
  • 1994 (26 Apr): Amended to skip Mandai Lake Rd in both directions with the introduction of service 138.
  • 1995 (05 Nov): Handed to Trans-Island Bus Services (TIBS)
  • 1999 (26 Dec): Amended to ply BKE instead of Woodlands Rd and Mandai Rd with the amendment of service 927.
  • 2006 (29 Oct): Serves Orchard Stn bus stop along Orchard Turn instead of Orchard Blvd
  • 2009 (01 Jun): Designated wheelchair-accessible bus route (WAB)
  • 2015 (14 Mar): Amended to Yishun Temp Int
  • 2015 (Jun): Bus Service Reliability Framework (BSRF) implemented for trial till Aug 2016
  • 2015 (27 Dec): Calls at Blk 184 instead of Blk 183 along Bt Panjang Rd towards Marina Centre as part of DTL2 Bukit Panjang Bus Service Enhancements
  • 2017 (04 Sep): Amended to skip a pair of bus stops along Jelebu Rd
  • 2017 (25 Feb): Calls at a new pair of bus stops (Blk 180 / Opp Blk 180) along Jelebu Rd
  • 2018 (12 Aug): Start of regular double-decker bus deployments on Sundays / Public Holidays
  • 2019 (08 Sep): Amended to Yishun Integrated Transport Hub

Past Routings:

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6 thoughts on “SMRT Bus Service 171

  • 2 February 2020 at 5:53 AM

    Not only on weekends/PHs,Pls deploy permanent DDs for weekdays peak hours too..4 DDs is enough

  • 10 March 2019 at 1:18 PM

    Service 171 have DDs on Saturdays as well.

  • 16 September 2017 at 5:16 PM

    Please be considerate for 171 commuters & not easing traffic flow along Jelebu Rd, especially during rainy days. We have to walk a long way back to Bukit Panjang Plaza!

  • 16 January 2017 at 9:01 PM

    Will u all be deploying MAN A95 Double Decker on SVC 171 Soon ?

    • 20 July 2018 at 9:17 PM

      You can post it into the feedback.

    • 21 July 2020 at 11:04 PM

      MAN A95 double decker buses and several times with Enviro500 are already deployed on SMRT 171 during Sundays & Public Holidays.


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