Bus Service 991

Service 991
Route Information
Route	Bukit Batok Interchange ↔ Choa Chu Kang Interchange
Route Length	11.7km
Travelling Time	41 – 50 mins
Operator	(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.

In the early 2030s, Brickland station would be opened to improve accessibility within the surrounding areas.

Service 991 was previously the highest service number in Singapore's bus services from its introduction until the introduction of Services 992 and 993 in the 2020s.

Service Information

Bus Duty & Fleet

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 SG5962D SG6007E SG6008C SG6015G SG6016D MAN ND323F SG5532L SG5535D Volvo B9TL

ExpandNotes

1 extra DD. 3 Service 190 DDs will perform one (1) down-route trip on Service 991 from Choa Chu Kang Avenue 3 (Bus Stop 44079 - Opp Blk 464) towards Bukit Batok Interchange before and during Weekdays AM Peak. Several 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 will operate on Service 983 on Saturdays. All 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. Service 991, Service 61, Service 172 & Service 983 DDs are interchangeable. All 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

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

• 44091

  Bef Choa Chu Kang Mkt
  Choa Chu Kang Ave 1
  →
  44009

  Choa Chu Kang Int
  Choa Chu Kang Loop
  • Weekdays: 05:30, 05:40 & 05:50
  • Weekends & Public Holidays: 05:45

• 44079

  Opp Blk 464
  Choa Chu Kang Ave 3
  →
  43009

  Bt Batok Int
  Bt Batok Ctrl
  • Weekdays: Morning Peak Hours

• 43349

  Opp Princess E Pr Sch
  Bt Batok West Ave 3
  →
  43009

  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

• 43009

  Bt Batok Int
  Bt Batok Ctrl
  →
  43341

  Princess E Pr Sch
  Bt Batok West Ave 3
  • Daily: 00:15, 00:30, 00:45 & 01:00

Short-Trip Service 991B

• 44009

  Choa Chu Kang Int
  Choa Chu Kang Loop
  →
  44099

  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

• 44079

  Opp Blk 464
  Choa Chu Kang Ave 3
  →
  43579

  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)

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Bus Stops		Nearby Attraction	Weekdays		Saturdays		Suns / PHs
			First bus	Last bus	First bus	Last bus	First bus	Last bus
43009 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)
43419 Aft Bt Batok Stn/Blk 628 Bt Batok Ctrl	991A	NS2Bukit Batok West Mall	05:31	00:01 (991) 01:01 (991A)	05:31	00:01 (991) 01:01 (991A)	05:31	00:01 (991) 01:01 (991A)
43401 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)
43321 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)
43331 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)
43341 Princess E Pr Sch Bt Batok West Ave 3	991A	Millennia Institute	05:36	00:07 (991) 01:08 (991A)	05:36	00:06 (991) 01:08 (991A)	05:36	00:06 (991) 01:06 (991A)
40321 Dulwich College Bt Batok West Ave 8		Millennia Institute	05:37	00:08	05:37	00:07	05:37	00:07
40341 Bef Blk 440A Bt Batok West Ave 8			05:38	00:09	05:38	00:08	05:38	00:08
40361 Blk 438A Bt Batok West Ave 8			05:39	00:10	05:39	00:09	05:39	00:09
40371 Opp Blk 465A Bt Batok West Ave 5			05:41	00:11	05:41	00:41	05:41	00:41
43601 Opp Blk 532 Bt Batok West Ave 5			05:43	00:13	05:43	00:13	05:43	00:13
43571 Opp Bt Gombak Stn Bt Batok West Ave 5		NS3Bukit Gombak Bukit Gombak Stadium	05:45	00:15	05:45	00:15	05:45	00:15
43581 Blk 347 Bt Batok West Ave 5			05:46	00:16	05:46	00:16	05:46	00:16
43521 Bt Batok Driving Ctr Bt Batok West Ave 5			05:47	00:17	05:47	00:17	05:47	00:17
30129 Opp Blk 805D Brickland Rd			05:49	00:19	05:49	00:19	05:49	00:19
30119 Aft Choa Chu Kang Ave 6 Brickland Rd			05:51	00:21	05:51	00:21	05:51	00:21
30109 Opp Blk 485A Brickland Rd			05:52	00:21	05:51	00:21	05:51	00:21
44071 Blk 464 Choa Chu Kang Ave 3			05:55	00:24	05:54	00:24	05:54	00:24
45451 Blk 293 Choa Chu Kang Ave 1		Sunshine Place	05:56	00:26	05:56	00:26	05:56	00:26
44081 Blk 296A Choa Chu Kang Ave 1			05:57	00:26	05:56	00:26	05:56	00:26
44091 Bef Choa Chu Kang Mkt Choa Chu Kang Ave 1			05:30	00:28	05:45	00:28	05:45	00:28
44881 Blk 816B Keat Hong Lk			05:32	00:30	05:47	00:30	05:45	00:30
44129 Sol Acres Condo Choa Chu Kang Way			05:34	00:32	05:49	00:32	05:49	00:32
44119 Blk 204 Choa Chu Kang Ave 1			05:37	00:35	05:52	00:35	05:52	00:35
44391 Aft Blk 202 Choa Chu Kang Dr			05:38	00:36	05:53	00:36	05:52	00:36
44009 Choa Chu Kang Int(Alighting) Choa Chu Kang Loop		NS4BP1Choa Chu Kang Lot One	05:42	00:40	05:57	00:40	05:57	00:40

Direction 2 (Choa Chu Kang → Bukit Batok)

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Bus Stops			Nearby Attraction	Weekdays		Saturdays		Suns / PHs
				First bus	Last bus	First bus	Last bus	First bus	Last bus
44009 Choa Chu Kang Int(Berth B3) Choa Chu Kang Loop	991B		NS4BP1Choa Chu Kang Lot One	05:30	00:00 (991) 00:55 (991B)	05:45	00:00 (991) 00:55 (991B)	05:45	00:00 (991) 00:55 (991B)
44539 Lot 1/Choa Chu Kang Stn Choa Chu Kang Ave 4	991B		NS4BP1Choa Chu Kang Lot One	05:32	00:02 (991) 00:56 (991B)	05:47	00:02 (991) 00:56 (991B)	05:47	00:02 (991) 00:56 (991B)
44399 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)
44111 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)
44881 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)
44099 Opp Choa Chu Kang Mkt Choa Chu Kang Ave 1	991B			05:41	00:11 (991) 01:06 (991B)	05:56	00:11 (991) 01:06 (991B)	05:56	00:11 (991) 01:06 (991B)
44089 Opp Blk 296A Choa Chu Kang Ave 1				05:42	00:12	05:57	00:12	05:57	00:12
44689 Sunshine Pl Choa Chu Kang Ave 3			Sunshine Place	05:43	00:18	05:58	00:13	05:58	00:13
44079 Opp Blk 464 Choa Chu Kang Ave 3		991C		05:43	00:14	06:00	00:14	06:00	00:14
30101 Blk 485B Brickland Rd		991C		05:46	00:15	06:01	00:15	06:01	00:15
30111 Blk 804B Brickland Rd		991C		05:48	00:17	06:04	00:17	06:03	00:17
30121 Blk 805D Brickland Rd		991C		05:49	00:18	06:05	00:18	06:04	00:18
43529 Opp Bt Batok Driving Ctr Bt Batok West Ave 5		991C		05:51	00:20	06:08	00:20	06:07	00:20
43589 Opp Blk 347 Bt Batok West Ave 5		991C		05:53	00:22	06:10	00:22	06:09	00:22
43579 Bt Gombak Stn Bt Batok West Ave 5		991C	NS3Bukit Gombak Bukit Gombak Stadium	05:55	00:24	06:12	00:24	06:11	00:24
43609 Blk 531 Bt Batok West Ave 5				05:56	00:25	06:13	00:25	06:11	00:25
40379 Blk 467 CP Bt Batok West Ave 5				05:59	00:27	06:15	00:27	06:14	00:27
40369 Blk 464A Bt Batok West Ave 8				06:00	00:29	06:17	00:29	06:15	00:29
40349 Blk 461 Bt Batok West Ave 8				06:02	00:30	06:18	00:30	06:16	00:30
40329 Millennia Institute Bt Batok West Ave 8			Millennia Institute	06:04	00:32	06:20	00:32	06:18	00:32
43349 Opp Princess E Pr Sch Bt Batok West Ave 3			Millennia Institute	05:30	00:33	05:30	00:33	05:30	00:33
43339 Blk 148 Bt Batok St 11				05:32	00:35	05:32	00:35	05:32	00:35
43329 Blk 146 Bt Batok West Ave 6				05:33	00:36	05:33	00:36	05:33	00:36
43409 Opp Blk 127 Bt Batok West Ave 3			Bukit Batok Polyclinic	05:35	00:38	05:35	00:38	05:35	00:38
43411 Opp Blk 628 Bt Batok Ctrl			NS2Bukit Batok West Mall	05:37	00:40	05:37	00:40	05:37	00:40
43009 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

Operator	Route	Year	Date	Service changes
(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.
				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.
	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.
			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.

External Links

• SimplyGo eGuide
• Bus Service Route Map