Bus Service 991

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TRAVEL ADVISORY
!
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 Sunday, 23 February 2025, Bus Services 4 & 5 will serve new bus stops along Flora Road. Please refer here for more information.

Land Transport AuthoritySBS Transit
  • From Friday, 28 February 2025, 3pm, Hume station on the Downtown Line will open. Please refer here for more information.

Service 991
SG6110P 991.jpg
Route Information
Route Bukit Batok Interchange ↔ Choa Chu Kang Interchange
Route Length 11.7km
Travelling Time 41 – 50 mins
Operator SMRT Buses
(Choa Chu Kang – Bukit Panjang Bus Package)

SMRT Buses Bus Service 991 is an inter-town route which was formed by old sectors of feeder service 941 and former feeder service 308, linking the residential neighbourhoods of Keat Hong, Brickland, Bukit Gombak, Bukit Batok West to the town centres of Choa Chu Kang and Bukit Batok.

As there are only a few transport options that bring Keat Hong and Brickland residents directly out of Choa Chu Kang town, Service 991 gives commuters more options to travel to nearby Bukit Batok West, including NS3Bukit Gombak station. As a result, it has to handle a unique yet significantly high demand on a daily basis between Bukit Gombak station, Brickland and Keat Hong, because it is the only service that serves most parts of Brickland Rd. This led the authorities to announce a new station called Brickland to address this specific enormous demand on this service.

Service 991 achieved the record of being highest service number in Singapore's bus services from its introduction until it was surpassed by the introduction of Services 992 and 993 in the 2020s.

Service Information[edit]

Bus Duty & Fleet[edit]

Service 991
Depot Fleet Size Fleet
Kranji Depot (KJDEP) 16 2 Single Deckers 14 Double Deckers
MAN NL323F
SMB3547E
SMB5031M
Alexander Dennis Enviro500
SG5774E
SG5817R
SG5823Y
SG5834R
SG5874A
SG5961G
SG6007E
SG6008C
SG6015G
SG6016D
MAN ND323F
SG5532L
SG5535D
Volvo B9TL
Notes
  • Several Service 991 buses will perform crossover trips on Short Trip 975A during Weekdays PM Peak & PM Off-Peak.
  • Random Service 61 DDs will operate on Service 991 during Weekends & Public Holidays.
  • SG6015G & SG6016D (Service 991) will perform on Service 983 on Saturdays.
  • All Service 991 buses departing
    • Bukit Batok Interchange after 0000 hours will operate as Short Trip 991A.
    • Choa Chu Kang Interchange after 0000 hours will operate as Short Trip 991B.
  • This service practises jumpbus.
  • All Service 991 buses park at Soon Lee Depot (SLDEP).
  • Weekdays: 9 AM - 9 PM / 4 S1 / 3 TBC (16 buses)
  • Weekends: 9 AM - 9 PM / 2 S2 (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 Choa Chu Kang 08 - 11 minutes 10 - 12 minutes 07 - 09 minutes 08 - 15 minutes
towards Bukit Batok 08 - 10 minutes 09 - 11 minutes 08 - 10 minutes 08 - 15 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: 05:30, 05:40 & 05:50
    • Weekends & Public Holidays: 05:45
  • icon44079
    Opp Blk 464
    Choa Chu Kang Ave 3
    icon43009
    Bt Batok Int
    Bt Batok Ctrl
    • Weekdays: Morning Peak Hours
  • icon43349
    Opp Princess E Pr Sch
    Bt Batok West Ave 3
    icon43009
    Bt Batok Int
    Bt Batok Ctrl
    • Weekdays: 05:30, 05:38, 05:46 & 05:54
    • Weekends & Public Holidays: 05:30, 05:41, 05:53 & 06:05
Short-Trip Service 991A[edit]
  • icon43009
    Bt Batok Int
    Bt Batok Ctrl
    icon43341
    Princess E Pr Sch
    Bt Batok West Ave 3
    • Daily: 00:15, 00:30, 00:45 & 01:00
Short-Trip Service 991B[edit]
  • icon44009
    Choa Chu Kang Int
    Choa Chu Kang Loop
    icon44099
    Opp Choa Chu Kang Mkt
    Choa Chu Kang Ave 1
    • Weekdays: 00:17, 00:36 & 00:55
    • Weekends & Public Holidays:00:18, 00:36 & 00:55
Short-Trip Service 991C[edit]
  • icon44079
    Opp Blk 464
    Choa Chu Kang Ave 3
    icon43579
    Bt Gombak Stn
    Bt Batok West Ave 5
    • Weekdays: 06:10, 06:36, 07:04, 07:15, 07:34, 07:45, 08:02, 08:30, & 08:52

Direction 1 (Bukit Batok → 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
icon43009
Bt Batok Int(Berths A11 & A12)
Bt Batok Ctrl
991A NS2Bukit Batok
West Mall
05:30 00:00 (991)
01:00 (991A)
05:30 00:00 (991)
01:00 (991A)
05:30 00:00 (991)
01:00 (991A)
icon43419
Aft Bt Batok Stn/Blk 628
Bt Batok Ctrl
991A 05:31 00:01 (991)
01:01 (991A)
05:31 00:01 (991)
01:01 (991A)
05:31 00:01 (991)
01:01 (991A)
icon43401
Bt Batok Polyclinic
Bt Batok West Ave 3
991A Bukit Batok Polyclinic 05:32 00:03 (991)
01:03 (991A)
05:32 00:02 (991)
01:03 (991A)
05:32 00:02 (991)
01:02 (991A)
icon43321
Opp Blk 144
Bt Batok West Ave 6
991A 05:34 00:04 (991)
01:05 (991A)
05:34 00:04 (991)
01:05 (991A)
05:34 00:04 (991)
01:04 (991A)
icon43331
Opp Bt Batok Presby Ch
Bt Batok St 11
991A 05:35 00:05 (991)
01:06 (991A)
05:35 00:05 (991)
01:06 (991A)
05:35 00:05 (991)
01:05 (991A)
icon43341
Princess E Pr Sch
Bt Batok West Ave 3
991A 05:36 00:07 (991)
01:08 (991A)
05:36 00:06 (991)
01:08 (991A)
05:36 00:06 (991)
01:06 (991A)
icon40321
Dulwich College
Bt Batok West Ave 8
Dulwich College 05:37 00:08 05:37 00:07 05:37 00:07
icon40341
Bef Blk 440A
Bt Batok West Ave 8
05:38 00:09 05:38 00:08 05:38 00:08
icon40361
Blk 438A
Bt Batok West Ave 8
05:39 00:10 05:39 00:09 05:39 00:09
icon40371
Opp Blk 465A
Bt Batok West Ave 5
05:41 00:11 05:41 00:41 05:41 00:41
icon43601
Opp Blk 532
Bt Batok West Ave 5
05:43 00:13 05:43 00:13 05:43 00:13
icon43571
Opp Bt Gombak Stn
Bt Batok West Ave 5
NS3Bukit Gombak 05:45 00:15 05:45 00:15 05:45 00:15
icon43581
Blk 347
Bt Batok West Ave 5
05:46 00:16 05:46 00:16 05:46 00:16
icon43521
Bt Batok Driving Ctr
Bt Batok West Ave 5
05:47 00:17 05:47 00:17 05:47 00:17
icon30129
Opp Blk 805D
Brickland Rd
05:49 00:19 05:49 00:19 05:49 00:19
icon30119
Aft Choa Chu Kang Ave 6
Brickland Rd
05:51 00:21 05:51 00:21 05:51 00:21
icon30109
Opp Blk 485A
Brickland Rd
05:52 00:21 05:51 00:21 05:51 00:21
icon44071
Blk 464
Choa Chu Kang Ave 3
05:55 00:24 05:54 00:24 05:54 00:24
icon45451
Blk 293
Choa Chu Kang Ave 1
Sunshine Place 05:56 00:26 05:56 00:26 05:56 00:26
icon44081
Blk 296A
Choa Chu Kang Ave 1
05:57 00:26 05:56 00:26 05:56 00:26
icon44091
Bef Choa Chu Kang Mkt
Choa Chu Kang Ave 1
Choa Chu Kang Market 05:30 00:28 05:45 00:28 05:45 00:28
icon44881
Blk 816B
Keat Hong Lk
05:32 00:30 05:47 00:30 05:45 00:30
icon44129
Sol Acres Condo
Choa Chu Kang Way
05:34 00:32 05:49 00:32 05:49 00:32
icon44119
Blk 204
Choa Chu Kang Ave 1
05:37 00:35 05:52 00:35 05:52 00:35
icon44391
Aft Blk 202
Choa Chu Kang Dr
05:38 00:36 05:53 00:36 05:52 00:36
icon44009
Choa Chu Kang Int(Alighting)
Choa Chu Kang Loop
NS4BP1Choa Chu Kang
Lot 1
05:42 00:40 05:57 00:40 05:57 00:40

Direction 2 (Choa Chu Kang → Bukit Batok)[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 B3)
Choa Chu Kang Loop
991B NS4BP1Choa Chu Kang
Lot 1
05:30 00:00 (991)
00:55 (991B)
05:45 00:00 (991)
00:55 (991B)
05:45 00:00 (991)
00:55 (991B)
icon44539
Lot 1/Choa Chu Kang Stn
Choa Chu Kang Ave 4
991B 05:32 00:02 (991)
00:56 (991B)
05:47 00:02 (991)
00:56 (991B)
05:47 00:02 (991)
00:56 (991B)
icon44399
Opp Blk 210
Choa Chu Kang Dr
991B 05:33 00:03 (991)
00:58 (991B)
05:48 00:03 (991)
00:58 (991B)
05:48 00:03 (991)
00:58 (991B)
icon44111
Opp Blk 203
Choa Chu Kang Ave 1
991B 05:35 00:05 (991)
00:59 (991B)
05:50 00:05 (991)
00:59 (991B)
05:50 00:05 (991)
00:59 (991B)
icon44881
Blk 816B
Keat Hong Lk
991B 05:38 00:08 (991)
01:03 (991B)
05:53 00:08 (991)
01:03 (991B)
05:53 00:08 (991)
01:03 (991B)
icon44099
Opp Choa Chu Kang Mkt
Choa Chu Kang Ave 1
991B Choa Chu Kang Market 05:41 00:11 (991)
01:06 (991B)
05:56 00:11 (991)
01:06 (991B)
05:56 00:11 (991)
01:06 (991B)
icon44089
Opp Blk 296A
Choa Chu Kang Ave 1
05:42 00:12 05:57 00:12 05:57 00:12
icon44689
Sunshine Pl
Choa Chu Kang Ave 3
Sunshine Place 05:43 00:18 05:58 00:13 05:58 00:13
icon44079
Opp Blk 464
Choa Chu Kang Ave 3
991C 05:43 00:14 06:00 00:14 06:00 00:14
icon30101
Blk 485B
Brickland Rd
991C 05:46 00:15 06:01 00:15 06:01 00:15
icon30111
Blk 804B
Brickland Rd
991C 05:48 00:17 06:04 00:17 06:03 00:17
icon30121
Blk 805D
Brickland Rd
991C 05:49 00:18 06:05 00:18 06:04 00:18
icon43529
Opp Bt Batok Driving Ctr
Bt Batok West Ave 5
991C 05:51 00:20 06:08 00:20 06:07 00:20
icon43589
Opp Blk 347
Bt Batok West Ave 5
991C 05:53 00:22 06:10 00:22 06:09 00:22
icon43579
Bt Gombak Stn
Bt Batok West Ave 5
991C NS3Bukit Gombak 05:55 00:24 06:12 00:24 06:11 00:24
icon43609
Blk 531
Bt Batok West Ave 5
05:56 00:25 06:13 00:25 06:11 00:25
icon40379
Blk 467 CP
Bt Batok West Ave 5
05:59 00:27 06:15 00:27 06:14 00:27
icon40369
Blk 464A
Bt Batok West Ave 8
06:00 00:29 06:17 00:29 06:15 00:29
icon40349
Blk 461
Bt Batok West Ave 8
06:02 00:30 06:18 00:30 06:16 00:30
icon40329
Millennia Institute
Bt Batok West Ave 8
Dulwich College 06:04 00:32 06:20 00:32 06:18 00:32
icon43349
Opp Princess E Pr Sch
Bt Batok West Ave 3
05:30 00:33 05:30 00:33 05:30 00:33
icon43339
Blk 148
Bt Batok St 11
05:32 00:35 05:32 00:35 05:32 00:35
icon43329
Blk 146
Bt Batok West Ave 6
05:33 00:36 05:33 00:36 05:33 00:36
icon43409
Opp Blk 127
Bt Batok West Ave 3
Bukit Batok Polyclinic 05:35 00:38 05:35 00:38 05:35 00:38
icon43411
Opp Blk 628
Bt Batok Ctrl
05:37 00:40 05:37 00:40 05:37 00:40
icon43009
Bt Batok Int(Berths A11 & A12)
Bt Batok Ctrl
NS2Bukit Batok
West Mall
05:40 00:43 05:40 00:43 05:40 00:43

Historical Information[edit]

Operator Route Year Date Service changes
SMRT Buses
(Current)
991Bukit Batok ↺ Bt Batok West Ave 5
991ABukit Batok → Bt Batok West Ave 3
2018 8 July Introduced between Bt Batok Int and Bt Batok West Ave 5 (Loop), operating between 0530 hrs and 2400 hrs daily. Wheelchair-accessible bus service (WAB) at launch. WAB
991AIntroduced from Bt Batok Int to Bt Batok West Ave 3 (Princess E Pr Sch), operating after the last bus of Service 991 daily. Wheelchair-accessible bus service (WAB) at launch. WAB
991Bukit Batok ↔ Choa Chu Kang
991ABukit Batok → Bt Batok West Ave 3
991BChoa Chu Kang → Choa Chu Kang Ave 1
30 September Integrated with Service 308 and extended to Choa Chu Kang Int.
991BIntroduced from Choa Chu Kang Int to Choa Chu Kang Ave 1 (Opp Choa Chu Kang Mkt), operating after the last bus of Service 991 daily. Wheelchair-accessible bus service (WAB) at launch. WAB
16 December Amended to new Choa Chu Kang Int.
23 December Serves new pair of bus stops outside Blk 485B and opposite Blk 485A along Brickland Rd.
991Bukit Batok ↔ Choa Chu Kang
991ABukit Batok → Bt Batok West Ave 3
991BChoa Chu Kang → Choa Chu Kang Ave 1
991CChoa Chu Kang Ave 5 → Bt Batok West Ave 5
2020 30 September
991CIntroduced from Choa Chu Kang Ave 3 (Opp Blk 464) to Bt Batok West Ave 5 (Bt Gombak Stn) during morning peak hours on weekdays. Wheelchair-accessible bus service (WAB) at launch. WAB

External Links[edit]

icon Choa Chu Kang – Bukit Panjang Bus Package [ VTE]
SMRT Buses
Services 616775172176180184188188e190868E927970972972M973975976979982E983983M985991
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 3 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
Tender Under Negotiation