Bus Service 172

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SMRT Trains
  • From Sunday, 14 November 2024 to 31 October 2025, Train services on the Bukit Panjang LRT will end an hour earlier at 22:30 every Thursday to Sunday (except Public Holidays). This is to facilitate the upgrading of the BPLRT signalling system, as well as the testing of the new and retrofitted Light Rail Vehicles (LRVs) on the BPLRT network. Please refer here for more information.

SBS Transit
  • From Monday, 17 March 2025, short-trip service 71A will be introduced from Mayflower MRT Station to Bishan MRT Station. Please refer here for more information.

SMRT Buses
  • From Sunday, 23 March 2025, supplementary bus service 258M will ply an extended route looping at Boon Lay Place to provide direct connection to amenities such as Boon Lay Shopping Centre. Please refer here for more information.

SMRT Buses
  • From Monday, 24 March 2025, supplementary bus service 979X will be introduced to provide a faster connection for residents in Yew Tee Village to and from Bukit Panjang MRT / Bus Interchange. Bus service 979X will supplement bus service 979 and serve selected bus stops along its route. It will operate on weekdays (excluding Public Holidays) during the morning and evening peak periods. Please refer here for more information.

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  • From Monday, 24 March 2025, supplementary bus service 861M will be introduced to complement existing travel options to Wellington Primary School. It will operate from Canberra Way, terminating at Sembawang Bus Interchange. This service will operate two trips during the morning peak period on weekdays during school term only. Please refer here for more information.

SBS Transit
  • From Monday, 24 March 2025, short-trip service 112B will be introduced starting from Hougang Central Bus Interchange and terminating at Hougang Avenue 7. This service will only operate on weekdays (excluding public holidays) during the evening peak period. Please refer here for more information.

Service 172
SMB16R 172.jpg
Route Information
Route Choa Chu Kang InterchangeBoon Lay Interchange
Route Length 14.5 km (towards Boon Lay)
14.2 km (towards Choa Chu Kang)
Travelling Time 50 mins
Operator SMRT Buses
(Choa Chu Kang – Bukit Panjang Bus Package)

SMRT Buses Bus Service 172 is an inter-town route linking the residential estates of Choa Chu Kang and Jurong West via Old Choa Chu Kang Rd.

Though serving the same purpose as bus service 975 in serving both Old Choa Chu Kang Rd and Choa Chu Kang town centre, this service plies a different sector via Keat Hong neighbourhood and its surrounding amenities, making it easier for residents to access nearby areas from their doorsteps.

Given the scarce public transport connections along Old Choa Chu Kang Rd, Service 172 is the only full day service that provides a direct connection to the town centre of Jurong West. As a result, it handles a unique yet significantly high demand on a daily basis. The main bulk of this huge demand comes from civil servants from base camps on weekdays and foreign workers from dormitories on weekends.

Service Information[edit]

Bus Duty & Fleet[edit]

Service 172
Depot Fleet Size Fleet
Kranji Depot (KJDEP) 21 12 Single Deckers 9 Double Deckers
SMB315C
SMB1323Y
SMB1594G
SMB1615E
SMB1632E
MAN NL323F
SMB2E
SMB5Y
SMB6U
SMB17M
SMB19H
SMB105S
Mercedes-Benz OC500LE
SMB3602D
SMB3610E
Alexander Dennis Enviro500
SG5800M
SG5801K
SG5803E
SG5806Y
SG5833T
SG6014J
SG6110P
MAN ND323F
SG5531P
SG5534G
Volvo B9TL
Notes
  • 1 missing SD & 2 extra DDs.
  • SMB3602D & SMB3610E will operate on Service 975 on Weekends & Public Holidays.
  • SMB315C will operate on Service 983 on Sundays & Public Holidays.
  • Any 3 DDs will operate on Service 172 on Saturdays.
  • Majority DD fleet on Weekdays AM & PM Off-Peak.
  • Service 172, Service 61, Service 983 & Service 991 DDs are interchangeable.
  • All Service 172 buses park at Soon Lee Depot (SLDEP).
  • Weekdays: 10 AM - 9 PM / 11 S1 (21 buses)
  • Saturdays: 13 AM - 10 PM / 1 TQ (14 buses)
  • Sundays: 10 AM - 10 PM / 1 TQ (11 buses)

Route Information[edit]

Period AM Peak
(First Bus - 08:30)
AM Off Peak
(08:31 - 16:59)
PM Peak
(17:00 - 19:00)
PM Off Peak
(19:01 - Last Bus)
towards Boon Lay 05 - 09 minutes 07 - 13 minutes 06 - 09 minutes 08 - 14 minutes
towards Choa Chu Kang 05 - 09 minutes 05 - 13 minutes 07 - 10 minutes 10 - 13 miuntes

Special Departures[edit]

  • icon44091
    Bef Choa Chu Kang Mkt
    Choa Chu Kang Ave 1
    icon44009
    Choa Chu Kang Int
    Choa Chu Kang Loop
    • Weekdays: Morning Peak Hours

Direction 1 (Choa Chu Kang → Boon Lay)[edit]

[Show/Hide Full Route Details]

Bus Stops Nearby Attraction Weekdays Saturdays Suns / PHs
First bus Last bus First bus Last bus First bus Last bus
icon44009
Choa Chu Kang Int(Berth B1)
Choa Chu Kang Loop
NS4BP1Choa Chu Kang
Lot One
05:30 23:30 05:30 23:30 06:00 23:30
icon44539
Lot 1/Choa Chu Kang Stn
Choa Chu Kang Ave 4
NS4BP1Choa Chu Kang
Lot One
05:31 23:31 05:31 23:31 06:01 23:31
icon44399
Opp Blk 210
Choa Chu Kang Dr
05:34 23:33 05:33 23:33 06:03 23:33
icon44111
Opp Blk 203
Choa Chu Kang Ave 1
05:36 23:34 05:34 23:34 06:05 23:34
icon44109
Opp Hong San Terr
Choa Chu Kang Ave 1
05:39 23:37 05:37 23:37 06:07 23:37
icon44099
Opp Choa Chu Kang Mkt
Choa Chu Kang Ave 1
05:41 23:38 05:38 23:38 06:09 23:38
icon44089
Opp Blk 296A
Choa Chu Kang Ave 1
05:43 23:39 05:39 23:39 06:09 23:39
icon44689
Sunshine Pl
Choa Chu Kang Ave 3
Sunshine Place 05:44 23:41 05:41 23:41 06:11 23:41
icon44079
Opp Blk 464
Choa Chu Kang Ave 3
05:46 23:42 05:42 23:42 06:13 23:42
icon30089
Aft Hai Inn See Tp
Brickland Rd
05:47 23:43 05:43 23:43 06:14 23:43
icon30099
Opp Chengtai Nursery
Sg Tengah Rd
05:51 23:46 05:46 23:46 06:17 23:46
icon30059
Opp Track 14
Old Choa Chu Kang Rd
05:52 23:47 05:47 23:47 06:18 23:47
icon30049
Home Team Acad
Old Choa Chu Kang Rd
Home Team Academy 05:52 23:47 05:47 23:47 06:18 23:47
icon30039
Army Logistics Base
Old Choa Chu Kang Rd
05:53 23:48 05:48 23:48 06:19 23:48
icon30029
Keat Hong Camp
Old Choa Chu Kang Rd
05:54 23:48 05:48 23:48 06:19 23:48
icon30019
Opp Tengah Air Base
Old Choa Chu Kang Rd
05:54 23:49 05:49 23:49 06:20 23:49
icon31199
B25 Old Choa Chu Kang Rd
Old Choa Chu Kang Rd
05:54 23:49 05:49 23:49 06:20 23:49
icon31179
Aft Jln Berseri
Old Choa Chu Kang Rd
05:56 23:50 05:50 23:50 06:21 23:50
icon31169
Teen Challenge
Old Choa Chu Kang Rd
05:57 23:51 05:51 23:51 06:22 23:51
icon31159
Bef Lim Chu Kang Rd
Old Choa Chu Kang Rd
05:58 23:52 05:52 23:52 06:23 23:52
icon31059
Aft Cemy Chapel
Jln Bahar
05:58 23:52 05:52 23:52 06:23 23:52
icon31049
Aft Chr Cemy Path 9
Jln Bahar
05:59 23:53 05:53 23:52 06:24 23:52
icon31039
Opp Civil Defence Acad
Jln Bahar
Civil Service Academy
National Service Training Institute
06:00 23:54 05:54 23:53 06:25 23:53
icon31029
Opp Jln Bahar Power Stn
Jln Bahar
06:01 23:55 05:54 23:54 06:25 23:54
icon31019
Bef Nanyang Ave
Jln Bahar
06:02 23:56 05:55 23:54 06:26 23:54
icon27129
Opp Nanyang Ave
Jln Bahar
06:03 23:57 05:56 23:55 06:27 23:55
icon27109
Westwood Sec Sch
Jln Bahar
06:06 00:00 05:59 23:57 06:30 23:57
icon27099
Blk 271 CP
Jln Bahar
06:06 00:02 06:00 23:59 06:32 23:59
icon21379
Blk 263
Jln Boon Lay
06:11 00:04 06:03 00:01 06:34 00:01
icon21369
Opp Blk 695
Jln Boon Lay
06:13 00:06 06:04 00:02 06:36 00:02
icon22491
Blk 662D
Jurong West St 64
EW27Boon Lay
Jurong Point
06:18 00:10 06:08 00:07 06:40 00:07
icon22009
Boon Lay Int(Alighting)
Jurong West Ctrl 3
EW27Boon Lay
Jurong Point
06:21 00:13 06:11 00:09 06:43 00:09

Direction 2 (Boon Lay → Choa Chu Kang)[edit]

[Show/Hide Full Route Details]

Bus Stops Nearby Attraction Weekdays Saturdays Suns / PHs
First bus Last bus First bus Last bus First bus Last bus
icon22009
Boon Lay Int(Berth B6)
Jurong West Ctrl 3
EW27Boon Lay
Jurong Point
05:30 23:30 05:30 23:30 06:00 23:30
icon22499
Opp Blk 662C
Jurong West St 64
EW27Boon Lay
Jurong Point
05:32 23:33 05:32 23:32 06:02 23:32
icon21361
Blk 695
Jln Boon Lay
05:36 23:37 05:36 23:36 06:06 23:35
icon21371
Blk 680C
Jln Boon Lay
05:37 23:39 05:37 23:37 06:07 23:36
icon27091
Opp Blk 271 CP
Jln Bahar
05:39 23:41 05:38 23:38 06:08 23:38
icon27101
Opp Westwood Sec Sch
Jln Bahar
05:41 23:43 05:41 23:40 06:10 23:39
icon27121
Bef Nanyang Ave
Jln Bahar
05:44 23:47 05:44 23:43 06:12 23:42
icon31011
Aft Nanyang Ave
Jln Bahar
05:44 23:47 05:44 23:43 06:12 23:42
icon31021
Jln Bahar Power Stn
Jln Bahar
05:45 23:48 05:44 23:44 06:14 23:43
icon31031
Civil Defence Acad
Jln Bahar
Civil Service Academy
National Service Training Institute
05:46 23:49 05:46 23:45 06:15 23:44
icon31041
Bef Muslim Cemy Path 7
Jln Bahar
05:47 23:50 05:47 23:45 06:16 23:44
icon31051
Pusara Aman Mque
Jln Bahar
05:48 23:51 05:48 23:46 06:17 23:45
icon31151
Aft Lim Chu Kang Rd
Old Choa Chu Kang Rd
05:49 23:52 05:49 23:47 06:18 23:46
icon31161
Opp Teen Challenge
Old Choa Chu Kang Rd
05:50 23:54 05:49 23:48 06:19 23:47
icon31171
Opp Jln Berseri
Old Choa Chu Kang Rd
05:50 23:54 05:49 23:48 06:19 23:47
icon31191
B26 Old Choa Chu Kang Rd
Old Choa Chu Kang Rd
05:51 23:55 05:51 23:49 06:20 23:48
icon30011
Tengah Air Base
Old Choa Chu Kang Rd
05:52 23:55 05:52 23:49 06:21 23:48
icon30021
Opp Keat Hong Camp
Old Choa Chu Kang Rd
05:53 23:56 05:53 23:50 06:22 23:49
icon30031
Opp Army Logistics Base
Old Choa Chu Kang Rd
05:53 23:57 05:53 23:50 06:22 23:49
icon30041
Opp Home Team Acad
Old Choa Chu Kang Rd
Home Team Academy 05:54 23:57 05:54 23:51 06:23 23:50
icon30051
Aft Track 14
Old Choa Chu Kang Rd
05:54 23:58 05:54 23:51 06:23 23:50
icon30091
Chengtai Nursery
Sg Tengah Rd
05:56 00:00 05:56 23:53 06:24 23:52
icon30081
Opp Hai Inn See Tp
Brickland Rd
05:58 00:02 05:58 23:55 06:27 23:54
icon44071
Blk 464
Choa Chu Kang Ave 3
05:59 00:03 05:59 23:56 06:28 23:55
icon45451
Blk 293
Choa Chu Kang Ave 1
Sunshine Place 06:01 00:05 06:01 23:58 06:30 23:56
icon44081
Blk 296A
Choa Chu Kang Ave 1
06:02 00:06 06:02 23:58 06:30 23:57
icon44091
Bef Choa Chu Kang Mkt
Choa Chu Kang Ave 1
06:03 00:07 06:03 00:00 06:32 23:58
icon44101
Aft Hong San Terr
Choa Chu Kang Ave 1
06:04 00:08 06:04 00:01 06:33 23:59
icon44119
Blk 204
Choa Chu Kang Ave 1
06:06 00:10 06:06 00:03 06:35 00:01
icon44391
Aft Blk 202
Choa Chu Kang Dr
06:08 00:12 06:08 00:04 06:36 00:02
icon44009
Choa Chu Kang Int(Alighting)
Choa Chu Kang Loop
NS4BP1Choa Chu Kang
Lot One
06:12 00:16 06:12 00:08 06:40 00:06

Historical Information[edit]

Operator Route Year Date Service changes
United Bus Company Lim Chu Kang ↔ Prince Edward 1971 11 April Introduced between Lim Chu Kang Ter and Prince Edward Ter under 1971 Bus Reorganisation.
SBS 1973 1 July Operations transferred to Singapore Bus Services.
1974 3 February Amended to skip Choa Chu Kang Rd End under 1974 Bus Rationalisation.
8 December Amended to ply Cecil St, skipping Robinson Rd.
1976 14 March Serves new staggered bus stop outside The Cenotaph along Connaught Dr, skipping the bus stop opposite Singapore Cricket Club.
1979 11 February Amended to ply the extended Shenton Way, Palmer Rd and Anson Rd, skipping Parsi Rd.
28 October Amended to ply Sungei Rd towards Prince Edward Ter with the conversion of Rochor Canal Rd to one-way traffic.
30 December Amended to ply Jln Anak Bt towards Prince Edward Ter with the partial conversion of Upp Bt Timah Rd to one-way traffic.
1980 TBC Amended to ply Bt Timah Rd towards Lim Chu Kang Ter, skipping Mackenzie Rd.
Lim Chu Kang ↔ Shenton Way 1987 28 June Amended to Shenton Way Ter.
Lim Chu Kang ↺ Jln Anak Bt 1991 26 May Shortened to loop at Jln Anak Bt from Lim Chu Kang Ter under TransitLink Network Integration Exercise Phase 5.
Boon Lay ↺ Jln Anak Bt 1993 3 January Amended to Boon Lay Int under TransitLink Network Integration Exercise Phase 11.
1994 TBC Amended to ply Sg Tengah Rd with the partial closure of Choa Chu Kang Rd.
1998 TBC Serves new pair of bus stops outside and opposite Blk 464 along Choa Chu Kang Ave 3.
SMRT Buses
(Current)
Known as Trans Island prior to 10 May 2004
Boon Lay ↔ Choa Chu Kang 1999 26 December Operations transferred to TIBS.
Shortened to Choa Chu Kang Int under Bt Panjang LRT Rationalisation.
2001 TBC Serves new bus stop outside Sunshine Pl along Choa Chu Kang Ave 3.
2006 18 June Amended to Boon Lay Temp Int.
2009 1 June Designated wheelchair-accessible bus service (WAB). WAB
27 December Amended to Boon Lay Integrated Transport Hub.
2011 23 October Skips a pair of removed bus stops after LP 222 and B27 Old Choa Chu Kang Rd along Old Choa Chu Kang Rd.
2013 24 February Serves new bus stop outside Blk 293 along Choa Chu Kang Ave 1.
2018 16 December Amended to new Choa Chu Kang Int.

External Links[edit]

icon Choa Chu Kang – Bukit Panjang Bus Package [ VTE]
Services 616775172176180184188188e190868E927970972972M973975976979982E983983M985991 SMRT Buses
Operated under Negotiated Contract
Choa Chu Kang Feeders 300301302307
Bukit Panjang Feeders 920922
Defunct 188R • 308 • 700 • 700A • 971 • 971E • 979M • NR3 • NR8
Bus Fleet Kranji Depot (KJDEP)
Single Decker Linkker LM312 • MAN NL323F (Euro V, Batch 1Euro V, Batch 2Euro V, Batch 3Euro VI Retrofitted Electric) • Mercedes-Benz OC500LE (Batch 1Batch 2) • Volvo B5LH
Double Decker Alexander Dennis Enviro500 (3-DoorBatch 1Batch 2) • MAN ND323F (3-DoorEuro V, Batch 1Euro V, Batch 2Euro V, Batch 3Euro VI, Batch 1Euro VI, Batch 2) • Volvo B9TL (Wright Eclipse Gemini 2) (Batch 4)
Articulated Buses MAN NG363F