Trunk Services 990 - 993

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Revision as of 09:22, 30 April 2026 by SG5064X (talk | contribs) (→Service 991: KIV 3305 as 991 perms with one random ZT cameo as 4th SD. 3498 and 99 shld be the actual replacement for the B2 A22s instead)
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Service 990

Route Depot Fleet Size Operator Bus Package
Bukit Batok Interchange ↺ Jurong Gateway Road Bulim Depot (BUDEP) 7 Tower Transit Bulim
Fleet

Any Single-decker & Double-decker buses

Notes
  • Down-route from Bukit Batok East Avenue 6 (Bus Stop 43519 - Opp Bt Batok Swim Cplx) towards Bukit Batok Interchange:
    • 3 buses & 1 DD (Duty 189A41) will perform one (1) down-route trip before Daily AM Peak at 0530 hours, 0538 hours, 0544 hours and 0612 hours (DD - Duty 189A41).
  • Any 5 SDs & 2 DDs will operate on Service 990 on Weekdays.
  • Any 3 SDs & 4 DDs will operate on Service 990 on Weekends & Public Holidays.
  • Majority DD fleet on Weekends & Public Holidays.
  • This service is the 33rd bus service introduced under the Land Transport Authority’s (LTA) Bus Service Enhancement Programme (BSEP).
  • This service practises jumpbus.
  • Weekdays: 4A–4P / 3S (7 buses)
  • Saturdays: 5A–6P / 2T (7 buses)
  • Sundays & Public Holidays: 6A–7P (7 buses)
  • External Links:

Service 991

Route Depot Fleet Size Operator Bus Package
Bukit Batok Interchange ↔ Choa Chu Kang Interchange Gali Batu Depot (GBDEP) 20 SMRT Buses Choa Chu Kang – Bukit Panjang
Fleet

SG3498R SG3499M
2 Zhongtong LCK6126EVG

SG5759A SG5760U SG5765G SG5774E SG5823Y SG5833T SG5834R SG5874A SG5960J SG5961G SG5962D SG6007E SG6008C SG6015G SG6016D SG6021M
16 MAN ND323F (4 Euro V Batch 2 / 4 Euro V Batch 3 / 8 Euro VI Batch 1)

Any Zhongtong LCK6126EVG buses

Notes
  • 2 missing SDs.
  • Down-route from Choa Chu Kang Avenue 1 (Bus Stop 44091 - Choa Chu Kang Mkt) towards Choa Chu Kang Interchange:
    • 3 buses will perform one (1) down-route trip before Weekdays AM Peak at 0530 hours, 0540 hours & 0550 hours.
    • 1 bus will perform one (1) down-route trip before Weekends & Public Holidays AM Peak at 0545 hours.
  • Down-route from Choa Chu Kang Avenue 3 (Bus Stop 44079 - Opp Blk 464) towards Bukit Batok Interchange:
    • SG5596C (Block 991-190-32) & 2 Service 190 DDs will perform one (1) down-route trip during Weekdays AM Peak at 0636 hours, 0643 hours & 0654 hours.
  • Down-route from Bukit Batok West Avenue 3 (Bus Stop 43349 - Opp Princess E Pr Sch) towards Bukit Batok Interchange:
    • 4 buses will perform one (1) down-route trip before Weekdays AM Peak at 0530 hours, 0538 hours, 0546 hours & 0554 hours.
    • 4 buses will perform one (1) down-route trip before Weekends & Public Holidays AM Peak at 0530 hours, 0542 hours, 0554 hours & 0606 hours.
  • 3 Service 61 DDs (Block 991-61-15), (Block 991-61-18) & (Block 991-61-25) will perform crossover trips on Service 991 during Weekdays AM Peak & PM Peak.
  • SG3494B (Block 451-991-20) will
    • interline to Limited-Stop 451 during Weekdays AM Peak.
    • interline to Short-Trip 975B for two (2) trips during Weekdays PM Peak.
  • Several buses will
    • interline to Limited-stop 451 during Weekdays AM Peak & PM Peak.
    • interline to Short-Trip 975A during Weekdays PM Peak & PM Off-Peak.
  • 4 DDs will perform one (1) short-trip as Short-Trip 991A after Daily PM Peak.
  • 3 DDs will perform one (1) short-trip as Short-Trip 991B after Daily PM Peak.
  • Several Service 61 DDs will operate on Service 991 on Weekends & Public Holidays.
  • This service practises jumpbus.
  • Weekdays: 9 AM - 9 PM / 4 S1 / 7 TBC (20 buses)
  • Weekends & Public Holidays: 9 AM - 9 PM / 2 S2 (11 buses)
  • External Links:

Short-Trip 991A

Route Depot Fleet Size Operator Bus Package
Bukit Batok Interchange → Bukit Batok West Avenue 3 (Princess E Pr Sch) Gali Batu Depot (GBDEP) 4 SMRT Buses Choa Chu Kang – Bukit Panjang
Fleet

Any Double-decker buses

Short-Trip 991A departure times
Departing from Bukit Batok Interchange
Daily 00:15 00:30 00:45 01:00

Short-Trip 991B

Route Depot Fleet Size Operator Bus Package
Choa Chu Kang Interchange → Choa Chu Kang Avenue 1 (Opp Choa Chu Kang Mkt) Gali Batu Depot (GBDEP) 3 SMRT Buses Choa Chu Kang – Bukit Panjang
Fleet

Any Double-decker buses

Short-Trip 991B departure times
Departing from Choa Chu Kang Interchange
Weekdays 00:17 00:36 00:55
Weekends & Public Holidays 00:18 00:36 00:55

Service 992

Route Depot Fleet Size Operator Bus Package
Bukit Batok Interchange ↔ Tengah Interchange Bulim Depot (BUDEP) 20 Tower Transit Bulim
Fleet

SG3092C SG3099J
2 Yutong ZK6128BEVG

Any Single-decker & Double-decker buses

Notes
  • Down-route from Bukit Batok Road (Bus Stop 43781 - Opp Blk 437A) towards Bukit Batok Interchange:
    • 1 bus will perform one (1) down-route trip before Daily AM Peak at 0515 hours.
  • 1 Service 177 bus will perform one (1) crossover trip on Service 992 during Weekdays PM Peak, departing Bukit Batok Interchange at 1911 hours.
  • 1 SD will perform one (1) crossover trip on Feeder 947 during Weekdays PM Peak.
  • 1 DD will perform two (2) crossover trips on Service 106 during Weekdays AM Peak, departing Bukit Batok Interchange at 0648 hours & unknown hours.
  • 1 SD (Duty 189P51) will perform two (2) crossover trips during Weekdays PM Off-Peak, departing Bukit Batok Interchange at 2155 hours and 2245 hours.
  • This service practices jumpbus.
  • Operating hours are extended on the eves of public holidays to align with the last train at Bukit Batok station.
  • Weekdays: 16A–16P / 6S / 2T (20 buses)
  • Saturdays: 10A–10P / 2S (11 buses)
  • Sundays & Public Holidays: 10A–10P (10 buses)
  • External Links:

Service 993

Route Depot Fleet Size Operator Bus Package
Jurong East Interchange ↺ Bukit Batok West Avenue 8 Ulu Pandan Depot (UPDEP) 4 SBS Transit Bukit Merah
Fleet

SBS6704P
1 Mercedes-Benz O530 Citaro (1 Batch 2)

SBS8127S SBS8131D SBS8335H
3 Scania K230UB (2 Euro IV Batch 1 / 1 Euro IV Batch 2)

Notes
Service 993 duty allocation
Weekdays
(3A-3P / 1E) 		A/P SBS6704P, SBS8127S & SBS8131D
E SBS8335H
Weekends & Public Holidays
(3A-3P) 		A/P SBS8042C & 2 other buses

See also

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