SMRT Bus Service 991 is a trunk route operating from Bukit Batok Bus Interchange and Choa Chu Kang Bus Interchange, serving numerous housing estates via Bukit Batok, Bukit Gombak, Choa Chu Kang and Keat Hong.
| Route Overview | ||||||||||||
Route  |
Bukit Batok Bus Interchange ↔ Choa Chu Kang Bus Interchange | |||||||||||
| Passes Through | Bt Batok St 11, Bt Batok West Ave 8, Bt Batok West Ave 5, Brickland Rd, Choa Chu Kang Ave 1, Keat Hong Link | |||||||||||
| Route Length | Towards Choa Chu Kang: 11.7 km |
Towards Bukit Batok: 11.7 km |
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| Travelling Time | 41 – 50 mins | |||||||||||
| Operator Information | ||||||||||||
| BCM Route Package | Choa Chu Kang–Bukit Panjang Bus Package | |||||||||||
| Current Operator | SMRT Buses Ltd | |||||||||||
| Current Depot | Kranji Bus Depot (KJDEP) Buses park at: Bulim Bus Depot (BUDEP) |
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| Current Fleet | Single-deck & Double-deck buses | |||||||||||
| Operating Hours | ||||||||||||
| Departure Times from Bukit Batok |
Daily | |||||||||||
| 05:30 – 01:00 | ||||||||||||
| After 00:00 – 01:00 daily, buses operate as Service 991A, terminating at Bukit Batok West Ave 3 (Princess E Pr Sch) | ||||||||||||
| Departure Times from Choa Chu Kang |
Weekdays |
Saturdays & Sundays / Public Holidays | ||||||||||
| 05:30 – 00:55 | 05:45 – 00:55 | |||||||||||
| After 00:00 – 00:55 daily, buses operate as Service 991B, terminating at Choa Chu Kang Ave 1 (Opp Choa Chu Kang Mkt) |
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| Operating Frequency | ||||||||||||
| 6:30am–8.30am | 8.31am–4.59pm | 5.00pm–7.00pm | After 7.00pm | |||||||||
| From Bukit Batok |
8 – 11 mins | 10 – 12 mins | 7 – 9 mins | 8 – 15 mins | ||||||||
| From Choa Chu Kang |
8 – 10 mins | 9 – 11 mins | 8 – 10 mins | 8 – 15 mins | ||||||||
| Fare Information |
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| Fare | Charges regular distance fares |
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Bus Service 991 is a trunk service plying between Bukit Batok and Choa Chu Kang, connecting many residential estates around Bukit Batok, Bukit Gombak, Choa Chu Kang and Keat Hong with the transport nodes of Bukit Batok, Bukit Gombak and Choa Chu Kang MRT stations and their nearby amenities.
When initially introduced on 8 July 2018, Service 991 plied an interim routing from Bukit Batok Interchange and looping at Bukit Batok West Ave 5, mainly complementing Service 941 and 944 in serving new residential estates northwest of Bukit Batok with direct links to Bukit Batok MRT Station. Short Trip Service 991A was also introduced to cater to late-night residents heading home from Bukit Batok MRT.
Service 991 was later extended to Choa Chu Kang via Bukit Gombak MRT, Bukit Batok West Ave 5, Brickland Rd, Choa Chu Kang Ave 3 & Ave 1, and Keat Hong Link. Thereafter, it absorbed the route of Feeder Service 308 (withdrawn on the same day), via Choa Chu Kang Ave 1, Choa Chu Kang Drive and terminating at Choa Chu Kang Interchange. Short Trip Service 991B was also introduced to cater to late-night residents heading home from Choa Chu Kang MRT.
Service 991 serves residential estates and condominiums such as:
- Sky Vista @ Bukit Batok
- West Quarry @ Bukit Batok
- West Plains @ Bukit Batok
- West Edge @ Bukit Batok
- West Rock @ Bukit Batok
- West Valley @ Bukit Batok
- West Ridges @ Bukit Batok
- Le Quest
- Hong Kah Green
- The Maderiah
- Bukit Gombak Vista
- Goodview Gardens
- Sunshine Court
- Sunshine Gardens
- iNz Residence
- Keat Hong Pride
- Keat Hong Crest
- Keat Hong Axis
- Keat Hong Colours
- Keat Hong Quad
- Keat Hong Verge
- Keat Hong Mirage
- Sol Acres
Schools and community amenities served en route include:
- Club CSC @ Bukit Batok
- Bukit Batok Polyclinic
- Bukit Batok Wet Market & Hawker Centre
- Bukit Batok Presbyterian Church
- St. Lukes Hospital
- Princess Elizabeth Primary School
- Millennia Institute
- Dulwich College
- Bukit Gombak Sports Centre
- HomeTeamNS Bukit Batok
- Bukit Batok Driving Centre
- Bukit Batok Park
- Sunshine Place
- Keat Hong Shopping Centre
- Choa Chu Kang Market
- Keat Hong Community Centre
MRT / LRT Stations Served
- NS2 Bukit Batok
- NS3 Bukit Gombak
- NS4BP1 Choa Chu Kang
Special Departures
- Choa Chu Kang Ave 1 (Bef Choa Chu Kang Mkt) → Choa Chu Kang Int
Weekdays: 05:30, 05:40 & 05:50
Saturdays & Sundays / Public Holidays: 05:45 - Choa Chu Kang Ave 3 (Opp Blk 464) → Bukit Batok Int
Weekdays Morning Peak Hours - Bukit Batok West Ave 3 (Opp Princess E Pr Sch) → Bukit Batok Int
Weekdays: 05:30, 05:38, 05:46 & 05:54
Saturdays & Sundays / Public Holidays: 05:30, 05:41, 05:53 & 06:05
Short Trip Services
- Service 991A: Bukit Batok Int → Bukit Batok West Ave 3 (Princess E Pr Sch)
Daily: 00:15, 00:30, 00:45 & 01:00
- Service 991B: Choa Chu Kang Int → Choa Chu Kang Ave 1 (Opp Choa Chu Kang Mkt)
Weekdays: 00:17, 00:36 & 00:55
Saturdays & Sundays / Public Holidays: 00:18, 00:36 & 00:55 - Service 991C: Choa Chu Kang Ave 3 (Opp Blk 464) → Bukit Batok West Ave 5 (Bt Gombak Stn)
Weekdays: 06:10 – 08:52
Gallery:
Poster Gallery:
Operator History:
- 08 Jul 2018 – Present: SMRT Buses Ltd
The Bus Service Operating License (BSOL) for this route will be renewed in 2026 under the Choa Chu Kang–Bukit Panjang Bus Package.
History:
- 2018 (08 Jul): Introduced between Bt Batok Int and Bt Batok West Ave 5 (Loop). Wheelchair-accessible at launch
- 2018 (30 Sep): Integrated with Service 308 and extended to Choa Chu Kang Int
- 2018 (16 Dec): Amended to relocated Choa Chu Kang Int
- 2018 (23 Dec): Serves a new pair of bus stops outside Blk 485B & opposite Blk 485A along Brickland Road
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This service causes 308 to be withdrawn. 😰😰😰😰😰
To the person incharge smrt buses. I would like to give some feedback about bus no 991. I have monitor from my block. It seen that from 6am morning bus 991 do not have more double decker bus still 9am. I saw more 991 double decker from 9.30am till 11am. I suggested bus 991 double decker at 6am till 9.30am peak hours due to student and workers passengers crowded at peak hours. From 9.30am till 11am should have not double buse because at this hours there is no much passengers. I apprecite if you could rearranged bus 991 double decker at peak hours only. Tkank you.
Regards
Rasip
Hi,can I know why 991 don’t stop at 113 Choa Chu Kang way,my Mother 83 years old.She don’t understand the bus 991 pass by the bus stop and don’t stop.We will be appreciate if the bus can stop at this bus stop 113.thanks
991 waiting time so suck, I am here since 11am but now still not here yet. Last week the waiting time more worst took us 20 minutes than only have bus come over. Stay at Keat Hong 805D here. Hope to have improvement for this.
Precisely ,never on time and the. Some Bus Drivers are jerks. On 28/07/2019, the driver Saw me RUNNING to chase the bus and he just driver faster and sped by. As if i’m Transparent. Angry!
This route is absolutely dumb 308 was more efficient and reliable and this 991 dont even stop or go to opp blk 810 carpark.
Petition to remove this route
50% agree with you, but the reason for this bus to be extended is to enchance connectivity with Bukit Batok Residents, so to Choa Chu Kang Residents. Besides, maybe SMRT will reintroduce bus 308 in it’s past routing.