View source for Trunk Services 180 - 189

{{Travel Advisory|S18X=showonly|BishanToaPayohBCM=showonly|BulimBCM=showonly|ChoaChuKangBukitPanjangBCM=showonly|JurongWestBCM=showonly|WoodlandsBCM=showonly|COVID=hide}}
==Service 180==
{{BD/1A|class=SMRT|Boon Lay Interchange|Bukit Panjang Interchange|Kranji Depot (KJDEP)|18|{{SMB}}|{{Choa Chu Kang – Bukit Panjang}}|
Fleet=
'''SG5770R SG5771M SG5772K SG5773H SG5775C SG5776A SG5778U SG5780L SG5796S SG5824U SG5979G SG6121H'''<br>
12 MAN ND323F ''(9 Euro V Batch 2 / 1 Euro V Batch 3 / 2 Euro VI Batch 1)''

'''SG5577H'''<br>
1 Volvo B9TL ''(1 WEG2 Batch 4)''

'''SMB8011B SMB8019E SMB8020A SMB8021Y SMB8028D''' <br>
5 MAN NG363F ''(5 Production Batch)''
}}
{|class="wikitable mw-collapsible mw-collapsed"
!Notes
|-
|
* '''1 Service 61 DD''' will perform one (1) down-route trip on Service 180 from Upper Bukit Timah Road (Bus Stop 44029 - Bt Panjang Stn Exit A/LRT) towards Boon Lay Interchange via Bukit Panjang Interchange during Weekdays AM Peak.
* '''1 Service 180 DD''' will perform one (1) crossover trip on Short Trip 190A during Weekdays AM Peak.
* '''1 Service 180 DD''' will perform one (1) down-route trip as Service 180 from Bukit Batok Road (Bus Stop 43679 - Blk 402) towards Boon Lay Interchange before Weekdays AM Peak, departing at 0525 hours.
* '''1 Service 190 SD & 1 Service 190 DD''' will perform one (1) down-route trip on Service 180 from Upper Bukit Timah Road (Bus Stop 44029 - Bt Panjang Stn Exit A/LRT) towards Boon Lay Interchange via Bukit Panjang Interchange before and during Weekdays AM Peak.
* '''SMB8011B (Service 180) & 2 Service 180 High-capacity buses''' will 
** perform down-route trips as Service 180 from Bukit Batok Road (Bus Stop 43671 - Opp Dunearn Sec Sch) towards Boon Lay Interchange via Bukit Panjang Interchange before & during Weekdays AM Peak.
** perform supplementary trips as Short Trip 180A during Weekdays PM Peak & PM Off-Peak, departing Boon Lay Interchange at 1820 hours, 1914 hours & 1934 hours respectively.
* '''3 Service 180 DDs''' will perform one (1) terminating trip as Short Trip 180A during Weekends & Public Holidays PM Off-Peak, departing Boon Lay Interchange at
** Saturdays: 2313 hours, 2329 hours & 2345 hours
** Sundays & Public Holidays: 2311 hours, 2328 hours & 2345 hours
* '''4 Service 180 DDs''' will perform one (1) down-route trip as Service 180 from Upper Bukit Timah Road (Bus Stop 44029 - Bt Panjang Stn Exit A/LRT) towards Boon Lay Interchange via Bukit Panjang Interchange before Sundays & Public Holidays AM Peak, departing at 0530 hours, 0545 hours, 0600 hours & 0615 hours.
* '''4 Service 184 DDs''' will perform one (1) down-route trip on Service 180 from Upper Bukit Timah Road (Bus Stop 44029 - Bt Panjang Stn Exit A/LRT) towards Boon Lay Interchange via Bukit Panjang Interchange during Weekdays AM Peak.
* '''5 Service 180 DDs''' will perform one (1) down-route trip as Service 180 from Upper Bukit Timah Road (Bus Stop 44029 - Bt Panjang Stn Exit A/LRT) towards Boon Lay Interchange via Bukit Panjang Interchange before Saturdays AM Peak, departing at 0520 hours, 0531 hours, 0542 hours, 0552 hours & 0602 hours.
* '''5 Service 180 DDs''' will perform one (1) terminating trip as Short Trip 180A during Weekdays PM Off-Peak, departing Boon Lay Interchange at 2305 hours, 2315 hours, 2325 hours, 2335 hours & 2345 hours.
* '''9 DDs''' will perform one (1) down-route trip as Service 180 from Upper Bukit Timah Road (Bus Stop 44029 - Bt Panjang Stn Exit A/LRT) towards Boon Lay Interchange via Bukit Panjang Interchange before Weekdays AM Peak, departing at 0520 hours, 0528 hours, 0535 hours, 0542 hours, 0549 hours, 0556 hours, 0602 hours, 0608 hours & 0614 hours.
* Service 180, Service 188, Service 972/972M & Service 979 DDs are interchangeable.
* All Service 180 Articulated buses are only deployed on Weekdays & selected Weekends & Public Holidays.
* All Service 180 buses are deployed on a rotation basis.
* All Service 180 buses departing Boon Lay Interchange after 2255 hours on Weekdays, Sundays & Public Holidays & 2257 hours on Saturdays will operate as Short Trip 180A.
* All Service 180 buses park at '''Woodlands Bus Park (WLBP)'''.
* '''Weekdays:''' 9 AM - 9 PM / TBC (TBC buses)
* '''Saturdays:''' 5 AM - 7 PM / 3 S1 / 2 TQ (12 buses)
* '''Sundays:''' 6 AM - 6 PM / 2 S1 (8 buses)
|}

==Short Trip 180A==
{{BD/1B|class=SMRT|Boon Lay Interchange|Bukit Panjang Road (Blk 183)|Kranji Depot (KJDEP)|3 – 5|{{SMB}}|{{Choa Chu Kang – Bukit Panjang}}|
Fleet=
'''SMB8011B'''<br>
1 MAN NG363F ''(1 Production Batch)''<br>

'''Any High-capacity buses'''
}}
{|class="wikitable" style="text-align:center; width:50%;"
|+ Short Trip 180A departure times
|-
!colspan="2"|Departing from Boon Lay Interchange
|-
!Weekdays
|18:20 19:14 19:34<br>23:05 23:15 23:25 23:35 23:45
|-
!Saturdays
|23:13 23:29 23:45
|-
!Sundays & Public Holidays
|23:11 23:28 23:45
|}
{|class="wikitable mw-collapsible mw-collapsed"
!Notes
|-
|
* '''SMB8011B (Service 180) & 2 Service 180 High-capacity buses''' will perform supplementary trips as Short Trip 180A during Weekdays PM Peak & PM Off-Peak, departing Boon Lay Interchange at 1820 hours, 1914 hours & 1934 hours respectively.
* '''3 Service 180 DDs''' will perform one (1) terminating trip as Short Trip 180A during Weekends & Public Holidays PM Off-Peak, departing Boon Lay Interchange at
** Saturdays: 2313 hours, 2329 hours & 2345 hours
** Sundays & Public Holidays: 2311 hours, 2328 hours & 2345 hours
* '''5 Service 180 DDs''' will perform one (1) terminating trip as Short Trip 180A during Weekdays PM Off-Peak, departing Boon Lay Interchange at 2305 hours, 2315 hours, 2325 hours, 2335 hours & 2345 hours.
* Full DD fleet on Weekends & Public Holidays.
|}

==Service 181 / 181M==
{{BD/4C|class=SMRT|181|Boon Lay Interchange|Jurong West Avenue 3|Soon Lee Depot (SLDEP)|8|{{SMB}}|{{Jurong West}}|Jurong West Street 23|
Fleet=
'''SG6246G'''<br>
1 MAN ND323F ''(1 Euro VI Batch 2)''

'''SBS3288T SG5473Z'''<br>
2 Volvo B9TL ''(1 WEG2 Batch 3 / 1 WEG2 Batch 4)''

'''Any Single-decker & Double-decker buses'''
}}
{|class="wikitable" style="text-align:center; width:50%;"
|+ Service 181M departure times
|-
!colspan="2"|Departing from Boon Lay Interchange
|-
!Weekdays School Term
|06:30 06:36 06:42 06:48 06:54 07:00 07:06 07:12 07:18 07:24 07:31 07:38 07:45
|}
{|class="wikitable mw-collapsible mw-collapsed"
!Notes
|-
|
* '''1 Service 181 bus''' will
** perform crossover trips on Short Trip 179A from Boon Lay Interchange during Weekdays AM Peak & AM Off-Peak.
** perform down-route trips on Short Trip 179A from Nanyang Drive (Bus Stop 27231 - Wee Kim Wee Sch of C&I) towards Boon Lay Interchange during Weekdays AM Off-Peak, PM Peak & PM Off-Peak.
* '''Several Service 181 buses''' will perform down-route trips as Service 181 from Jurong West Avenue 3 (Bus Stop 27469 - Blk 276B) towards Boon Lay Interchange before daily AM Peak, departing at
** Weekdays: 0513 hours, 0522 hours, 0531 hours, 0540 hours, 0547 hours, 0554 hours, 0601 hours & 0608 hours
** Saturdays: 0530 hours, 0545 hours & 0600 hours
** Sundays / Public Holidays: 0530 hours, 0545 hours & 0559 hours
* Full DD fleet on Weekends & Public Holidays.
* Service 181 does not operate when Service 181M is in operation.
|}

==Service 182 / 182M==
{{BD/1A|class=SMRT|Joo Koon Interchange|Tuas South Avenue 9|Soon Lee Depot (SLDEP)|{{TBC}}|{{SMB}}|{{Jurong West}}|
Fleet=

'''SBS3769Y SBS3811H SG5337J'''<br>
2 Volvo B9TL ''(2 WEG2 Batch 3 / 1 WEG2 Batch 4)''

'''Any Double-decker buses'''
}}
{|class="wikitable mw-collapsible mw-collapsed"
!Notes
|-
|
* Service 182M '''only''' operates between 0925 hours - 1200 hours, 1530 hours - 2000 hours & 2220 hours - 2315 hours daily. Service 182 does not operate when Service 182M is in operation.
|}

==Service 183==
{{BD/1A|class=TTS|Jurong East Interchange|Science Park Road|Bulim Depot (BUDEP)|17|{{TTS}}|{{Bulim}}|
Fleet=
'''Any Single-decker & Double-decker buses'''
}}
{|class="wikitable mw-collapsible mw-collapsed"
!Notes
|-
|
* '''1 Service 183 bus''' will perform one (1) down-route trip on Service 183 from Clementi Road (Bus Stop 16131 - Opp Kent Ridge Ter) towards Jurong East Interchange before Weekends & Public Holidays AM Peak, departing at 0625 hours.
* '''3 Service 183 buses''' will perform one (1) down-route trip on Service 183 from Commonwealth Avenue West (Bus Stop 17179 - Clementi Stn Exit B) towards Jurong East Interchange via Science Park Road before Weekdays AM Peak, departing at 0605 hours, 0611 hours & 0617 hours.
* This service practises jumpbus.
|}

==Short Trip 183B==
{{BD/1B|class=TTS|Jurong East Interchange|Toh Tuck Avenue (Aft Toh Tuck Lk)|Bulim Depot (BUDEP)|4|{{TTS}}|{{Bulim}}|
Fleet=
'''Any Single-decker & Double-decker buses'''
}}
{|class="wikitable" style="text-align:center; width:50%;"
|+ Short Trip 183B departure times
|-
!colspan="2"|Departing from Jurong East Interchange
|-
!Weekdays
|07:58 08:22 08:30 08:38 08:46 08:54
|}

==Service 184==
{{BD/1A|class=SMRT|Gali Batu Terminal|Commonwealth Avenue West|Kranji Depot (KJDEP)|20|{{SMB}}|{{Choa Chu Kang – Bukit Panjang}}|
Fleet=
'''SMB5017E SMB5018C SMB5026D SMB5046X SMB5048R SMB5055U SMB5067K'''<br>
7 Alexander Dennis Enviro500 ''(7 Batch 1)''

'''SG5453G SG5576K'''<br>
2 Volvo B9TL ''(2 WEG2 Batch 4)''

'''SMB388S SMB8012Z SMB8024P SMB8032R SMB8033M''' <br>
5 MAN NG363F ''(1 Demonstrator / 4 Production Batch)''
}}
{|class="wikitable mw-collapsible mw-collapsed"
!Notes
|-
|
* 4 missing SDs & 2 missing DDs.
* '''2 Service 184 DDs''' will perform one (1) down-route trip as Service 184 from Commonwealth Avenue West (Bus Stop 17179 - Clementi Stn Exit B) towards Gali Batu Terminal before Weekdays AM Peak, departing at 0600 hours & 0610 hours.
* '''4 Service 184 DDs''' will perform one (1) down-route trip on Service 180 from Upper Bukit Timah Road (Bus Stop 44029 - Bt Panjang Stn Exit A/LRT) towards Boon Lay Interchange via Bukit Panjang Interchange during Weekdays AM Peak.
* '''Several Service 67 SDs''' will operate on Service 184 on Weekends & Public Holidays.
* '''SMB5017E (Service 184) & several Service 184 DDs''' will operate on Service 67 on Weekends & Public Holidays.
* '''SMB8032R (Service 184) & several Service 184 Articulated buses''' will operate on Feeder 302 on Weekends & Public Holidays.
* Service 184 & Feeder 302 MAN NG363F buses are interchangeable.
* Full SD fleet on Weekends & Public Holidays.
* '''Weekdays:''' 10 AM - 12 PM / 8 S1 (20 buses)
* '''Saturdays:''' 8 AM - 8 PM / 1 S1 / 2 TQ (11 buses)
* '''Sundays:''' 7 AM - 7 PM / 1 TQ (8 buses)
|}

==Service 185==
{{BD/1D|class=SMRT|Soon Lee Bus Park|Buona Vista Terminal|Soon Lee Depot (SLDEP)|{{TBC}}|{{SMB}}|{{Jurong West}}|
Fleet=
'''SBS8056M SBS8946U SBS8987B'''<br>
3 Scania K230UB ''(1 Euro IV Batch 1 / 2 Euro V Batch 1)''

'''SBS3061E SBS3095H SBS3753S SBS7510A SG5110X'''<br>
5 Volvo B9TL ''(1 WEG2 Batch 1 / 2 WEG2 Batch 2 / 1 WEG2 Batch 3 / 1 WEG2 Batch 4)''

'''Any Single-decker & Double-decker buses'''
}}

==Service 186==
{{BD/1D|class=SBST|Shenton Way Terminal|Saint Michael's Terminal|Braddell Bus Park (BRBP)|15|{{SBST}}|{{Bishan – Toa Payoh}}|
Fleet=
'''SBS6008R'''<br>
1 Mercedes-Benz O530 Citaro ''(1 Batch 1)''

'''SBS8180L SBS8795M SBS8803Z SBS8809H SBS8917D SBS8918B SBS8919Z SBS8920T SBS8922M'''<br>
9 Scania K230UB ''(1 Euro IV Batch 2 / 8 Euro V Batch 1)''

'''SBS3065U SBS3156R SBS3213J SBS3232D SBS3262S'''<br>
5 Volvo B9TL ''(4 WEG2 Batch 2 / 1 WEG2 Batch 3)''
}}
{|class="wikitable mw-collapsible mw-collapsed"
!Notes
|-
|
* '''1 Service 186 SD''' will perform one (1) down-route trip as Service 186 from Whitley Road (Bus Stop 40239 - Bef Stevens Stn Exit 4) towards Shenton Way Terminal before Weekends & Public Holidays AM Peak, departing at 0555 hours.
* '''1 Service 186 SD''' will perform one (1) down-route trip as Service 186 from Ganges Avenue (Bus Stop 10329 - Blk 79) towards Shenton Way Terminal during Weekdays AM Peak, departing at 0841 hours.
* '''1 Service 186 DD''' will perform two (2) down-route trips as Service 186 from Ganges Avenue (Bus Stop 10329 - Blk 79) towards Shenton Way Terminal during Weekdays AM Peak, departing at 0800 hours & 0849 hours.
* '''SBS8180L (Service 186) and 1 other SD''' will perform one (1) down-route trip as Service 186 from Whitley Road (Bus Stop 40239 - Bef Stevens Stn Exit 4) towards Shenton Way Terminal before Weekdays AM Peak, departing at 0555 hours & 0608 hours respectively.
* {{Desti|186|Shenton Way Terminal|Saint Michael's Terminal}}
* '''Mondays-Thursdays:''' 9A-8P / 5S / 1E (15 buses)
* '''Fridays:''' 9A-9P / 5S / 1E (15 buses)
* '''Saturdays:''' 9A-8P / 1S / 1T (11 buses)
* '''Sundays & Public Holidays:''' 9A-7P / 1S / 1T (11 buses)
* '''Special Weekdays:''' 12A-10P / 3S / 1T (16 buses)
:{|class="wikitable mw-collapsible mw-collapsed" style="text-align:center"
!colspan="4"|Service 186 duty allocation
|-
!rowspan="4"|Mondays-Thursdays<br/>(9A-8P / 5S / 1E)
!scope="col"|A/P
|SBS3065U, SBS8180L (Duty 1A), SBS8795M, SBS8809H (Duty 5A/14P), SBS8917D, SBS8918B, SBS8919Z & SBS8920T
|-
!scope="col"|A
|SBS6008R (Duty 2A)
|-
!scope="col"|S
|SBS3156R, SBS3232D, SBS3262S, SBS8803Z & SBS8922M 
|-
!scope="col"|E
|SBS3213J
|-
!rowspan="4"|Fridays<br/>(9A-9P / 5S / 1E)
!scope="col"|A/P
|SBS3065U, SBS6008R, SBS8180L, SBS8795M, SBS8809H, SBS8917D, SBS8918B, SBS8919Z & SBS8920T
|-
!scope="col"|S
|SBS3156R, SBS3232D, SBS3262S, SBS8803Z & SBS8922M 
|-
!scope="col"|E
|SBS3213J
|-
|}
|}

==Service 187==
{{BD/1C|class=SMRT|Woodlands Interchange|Boon Lay Interchange|Woodlands Depot (WLDEP)<br />Kranji Depot (KJDEP)|32<br />Woodlands: 26<br />Kranji: 6|{{SMB}}|{{Woodlands}}|
D1=Woodlands Depot
|Fleet1=
'''SMB318U SMB342Z SMB347K SMB1318M SMB1319K SMB1323Y SMB1351R SMB1352M SMB1545Z SMB1547T SMB1601U SMB1616C SMB1626Z'''<br>
13 MAN NL323F ''(3 Euro V Batch 1 / 5 Euro V Batch 2 / 5 Euro V Batch 3)''

'''SMB146Z SMB168K'''<br>
2 Mercedes-Benz O530 Citaro ''(2 Batch SMRT)

'''SG5819K SG5976P SG5983T SG5985M SG6036X SG6127S SG6129L'''<br>
7 MAN ND323F ''(1 Euro V Batch 3 / 6 Euro VI Batch 1)''

'''SG5173P SG5436G'''<br>
2 Volvo B9TL ''(2 WEG2 Batch 4)''

|D2=Kranji Depot
|Fleet2=
'''SMB325Z SMB326X SMB1563X'''<br>
3 MAN NL323F ''(2 Euro V Batch 1 / 1 Euro V Batch 3)''

'''SMB31X SMB74Y'''<br>
2 Mercedes-Benz OC500LE ''(1 Batch 1 / 1 Batch 2)''

'''Any Single-decker bus'''
}}
{|class="wikitable mw-collapsible mw-collapsed"
!Notes
|-
|
* 2 missing WLDEP SDs.
* '''1 WLDEP Service 187 SD''' will perform crossover trips on Feeder 904 during Weekdays PM Peak.
* '''1 WLDEP Service 187 SD''' will perform one (1) crossover trip on Feeder 901 during Weekdays AM Off-Peak.
* '''1 WLDEP Service 187 SD''' will perform one (1) down-route trip on Feeder 913 as Terminating Trip 913T from Woodlands Interchange via Woodlands Circle (East loop) before Weekdays AM Peak.
* '''1 WLDEP Service 187 SD''' will perform two (2) crossover trips on Short Trip 912A during Saturdays PM Peak.
* '''1 Service 187 SD & 1 Service 187 DD''' will perform one (1) down-route trip as Service 187 from Bukit Panjang Road (Bus Stop 44269 - Blk 223) towards Boon Lay Interchange before Weekdays AM Peak, departing at 0535 hours & 0530 hours respectively.
* '''1 Service 187 SD & 2 Service 187 DDs''' will perform one (1) down-route trip as Service 187 from Bukit Panjang Road (Bus Stop 44251 - Bt Panjang Stn/Blk 604) towards Woodlands Interchange before & during Sundays & Public Holidays AM Peak, departing at 0616 hours, 0600 hours & 0632 hours respectively.
* '''1 Service 187 SD & 2 Service 187 DDs''' will perform one (1) down-route trip as Service 187 from Bukit Panjang Road (Bus Stop 44251 - Bt Panjang Stn/Blk 604) towards Woodlands Interchange before Saturdays AM Peak, departing at 0558 hours, 0545 hours & 0611 hours respectively.
* '''3 Service 187 SDs & 2 Service 187 DDs''' will perform one (1) down-route trip as Service 187 from Bukit Panjang Road (Bus Stop 44251 - Bt Panjang Stn/Blk 604) towards Woodlands Interchange before Weekdays AM Peak, departing at 0555 hours, 0615 hours, 0625 hours, 0545 hours & 0605 hours respectively.
* '''Several WLDEP Service 187 buses''' will perform crossover trips on Express 960e on Weekdays, Sundays & Public Holidays.
* '''SG5168E & SG5433P (Feeder 911) & SG5827L (Service 178)''' will operate on Service 187 on Weekends & Public Holidays.
* All KJDEP Service 187 buses park at '''Bulim Depot (BUDEP)'''.
* '''Weekdays:''' Woodlands TBC; Kranji 6 AM - 6 PM (32 buses)
* '''Saturdays:''' Woodlands TBC; Kranji 4 AM - 4 PM (TBC buses)
* '''Sundays:''' Woodlands TBC; Kranji 2 AM - 2 PM / 2 TQ (TBC buses)
|}

==Service 188==
{{BD/1D|class=SMRT|Choa Chu Kang Interchange|HarbourFront Interchange|Kranji Depot (KJDEP)|32|{{SMB}}|{{Choa Chu Kang – Bukit Panjang}}|
Fleet=
'''SMB1535C SMB1566M SMB1580X SMB1581T SMB1586E SMB1588A SMB1640G SMB1641D SMB1642B SMB1643Z SMB1649H'''<br>
11 MAN NL323F ''(11 Euro V Batch 3)''

'''SMB15T SMB121U SMB122S'''<br>
3 Mercedes-Benz OC500LE ''(1 Batch 1 / 2 Batch 2)''

'''SG5700T SG5701R SG5707A SG5714D'''<br>
4 Alexander Dennis Enviro500 ''(4 Batch 2)''

'''SG5873C SG5975S SG6139H'''<br>
3 MAN ND323F ''(1 Euro V Batch 3 / 2 Euro VI Batch 1)''

'''SG5138S SG5139P SG5157L SG5158J SG5159G SG5161Z SG5171U SG5172S SG5175J SG5490Z'''<br>
10 Volvo B9TL ''(10 WEG2 Batch 4)''
}}
{|class="wikitable mw-collapsible mw-collapsed"
!Notes
|-
|
* 1 extra SD & 2 missing DDs.
* '''Duty 188S151 (Bus: SMB1643Z)''' will perform one (1) supplementary trip as Express 188e during Weekdays AM Peak, departing Choa Chu Kang Interchange at 0708 hours.
* '''Duty 188S152 (Bus: SD)''' will perform one (1) supplementary trip as Express 188e during Weekdays AM Peak, departing Choa Chu Kang Interchange at 0723 hours.
* '''1 Service 188 SD''' will perform crossover trips on Feeder 302 during Weekdays PM Peak.
* '''1 Service 188 SD''' will perform supplementary trips on Short Trip 302A before & during Weekdays AM Peak.
* '''2 Service 188 SDs''' will perform one (1) crossover trip on Service 983M during Weekdays AM Peak, departing Choa Chu Kang Avenue 5 (Bus Stop 44581 - Opp Blk 486) at 0640 hours & 0700 hours respectively (except for School Holidays).
* '''2 Service 188 DDs''' will perform one (1) down-route trip as Service 188 from Toh Guan Road (Bus Stop 28649 - Blk 286A) towards Choa Chu Kang Interchange before Weekdays AM Peak, departing at 0615 hours & 0627 hours.
* '''SG5161Z (Service 188)''' will perform one (1) down-route trip as Service 188 from Bukit Batok West Avenue 3 (Bus Stop 43401 - Bukit Batok Polyclinic) towards HarbourFront during AM Off-Peak, departing at 0915hrs.
* '''Any 3 DDs''' will operate on Service 188 on Sundays & Public Holidays.
* Majority SD fleet on Weekends & Public Holidays.	
* Service 188, Service 180, Service 972/972M & Service 979 DDs are interchangeable.
* This service practises jumpbus.
* All Service 188 buses park at '''Woodlands Bus Park (WLBP)'''.
* '''Weekdays:''' 14 AM - 15 PM / 17 TBC (32 buses)
* '''Weekdays Sch Hol:''' TBC (TBC Buses)
* '''Saturdays:''' 12 AM - 12 PM / 2 S1 / 1 S2 / 1 TQ (16 buses)
* '''Sundays:''' 12 AM - 12 PM / 2 S1 / 1 TQ (15 buses)
|}

==Service 189==
{{BD/1A|class=TTS|Bukit Batok Interchange|Clementi Avenue 1|Bulim Depot (BUDEP)|14|{{TTS}}|{{Bulim}}|
Fleet=
'''SG7003J SG7004G SG7005D'''<br>
3 Yutong ZK6125BEVGS

'''Any Single-decker & Double-decker buses'''
}}
{|class="wikitable mw-collapsible mw-collapsed"
!Notes
|-
|
* '''1 Service 189 bus''' will perform one (1) down-route trip on Service 189 from Commonwealth Avenue West (Bus Stop 17179 - Clementi Stn Exit B) towards Bukit Batok Interchange via Clementi Avenue 1 before Weekdays AM Peak, departing at 0558 hours.
* '''2 Service 189 buses''' will perform one (1) down-route trip on Service 189 from Commonwealth Avenue West (Bus Stop 17179 - Clementi Stn Exit B) towards Bukit Batok Interchange via Clementi Avenue 1 during Weekdays AM Peak, departing at 0704 hours & 0713 hours.
* '''2 Service 189 DDs''' will perform two (2) crossover trips on Service 941 before AM Peak.
* '''2 Service 189 DDs''' will perform one (1) crossover trip on Service 947 during PM Peak.
* '''3 Service 189 buses''' will perform four (4) down-route trips on Service 189 from Bukit Batok Street 23 (Bus Stop 43311 - Midview Bldg) towards Bukit Batok Interchange during Weekdays PM Peak, departing between 1705 hours & 1849 hours.
* '''4 Service 189 buses''' will perform down-route trips on Service 189 from Clementi Road (Bus Stop 17191 - NUS High Sch) towards Bukit Batok Interchange during Weekdays AM Off-Peak, departing at 1334 hours, 1424 hours, 1442 hours, 1451 hours & 1509 hours.
* All Service 189 MAN ND323F (3-Door) buses are only deployed on Weekdays.
* All Service 189 buses departing Bukit Batok Interchange after 2315 hours will operate as Short Trip 189A.
* This service practises jumpbus.
|}

==Short Trip 189A==
{{BD/1B|class=TTS|Bukit Batok Interchange|Bukit Batok Street 23 (Opp Midview Bldg)|Bulim Depot (BUDEP)|4|{{TTS}}|{{Bulim}}|
Fleet=
'''Any Single-decker & Double-decker buses'''
}}
{|class="wikitable" style="text-align:center; width:50%;"
|+ Short Trip 189A departure times
|-
!colspan="2"|Departing from Bukit Batok Interchange
|-
!Weekdays
|07:05 – 09:04<br>23:38 00:01 00:24 00:47 01:10
|-
!Weekends & Public Holidays
|23:38 00:01 00:24 00:47 01:10
|}
{|class="wikitable mw-collapsible mw-collapsed"
!Notes
|-
|
* Full SD fleet during Weekdays AM Peak & AM Off-Peak.
|}

[[Category:Buses]]
[[Category:SBS Transit]]
[[Category:SMRT Buses]]
[[Category:Tower Transit Singapore]]