Difference between revisions of "Bus Service 21"

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'''Notes:'''
* <div style='display:flex;align-items:start'><span style='margin-right:.5em'><sup>1</sup>: </span><span>This service calls at this stop twice (towards St Michael’s and towards Pasir Ris). Commuters are to check the bus destination before boarding.</span></div>
* <div style='display:flex;align-items:start'><span style='margin-right:.5em'><sup>1</sup>: </span><span>This service calls at this stop twice (towards St Michael’s Ter and towards Pasir Ris Int). Commuters are to check the bus destination before boarding.</span></div>
</div>
</div>


Revision as of 22:03, 12 March 2025

!
 TRAVEL ADVISORY (7/4/2025)
!
Go-Ahead SBS Transit
  • From Sunday, 27 April 2025, Pasir Ris Bus Interchange will be relocated to the new Pasir Ris Integrated Transport Hub (ITH), which will be accessible via Pasir Ris Mall, Level 1. There is no change to existing bus routes and stopping points. Please refer here for more information.
SBS Transit
  • From Monday, 28 April 2025, supplementary bus service 21X will be introduced, operating from Saint Michael's Terminal and looping at Thomson Road. It will only operate during Weekday peak hours. Please refer here for more information.
Service 21
SBS3158K 21.jpg
Route Information
Route Pasir Ris Interchange ↔ St. Michael's Terminal
Route Length 27.4 km (towards St. Michael's)
25.0 km (towards Pasir Ris)
Travelling Time 130 mins (2 h 10 mins)
Operator SBS Transit
(Bishan – Toa Payoh Bus Package)

Bus Service 21 spans from Central to East, serving many residential areas throughout its route, such as Whampoa, Balestier, Boon Keng, Kallang, Paya Lebar, Eunos, Kaki Bukit, Bedok Reservoir, Tampines and Pasir Ris. Its lengthy route and large coverage makes it an important inter-town route, and as a result, journey time is relatively long for its length.

Introduced in 1992, the route originally ran between Pasir Ris Int and Lorong 1 Geylang Ter before being extended to St. Michael’s in 1993 following the merger with then-Service 4. Service 21 made history on 26 June 2006 as the first wheelchair-accessible bus service in Singapore following the debut of Volvo B9TL (CDGE) buses on the route.

The route has several key sectors offering important connections, such as that between St. Michael’s Estate and Novena MRT, Farrer Park and the Geylang district, as well as that between Eunos MRT and Bedok Reservoir Road. As such, in addition to demand from inter-town connections, the route experiences high demand throughout the day, and relies on fleet comprising mostly of double-decker buses. Around Farrer Park, the route plies very different stretches in either direction. The route was amended to serve Jalan Tenteram in both directions in April 2016.

Service 21 uses coloured information plates.

21
(towards Pasir Ris Interchange)
21
(towards Saint Michael's Terminal)

Short-Trip Service 21A operates only on Sundays and Public Holidays, and supplements the high demand for Service 21 from the Geylang area to Kitchener Road near Little India.

Service Information

Bus Duty & Fleet

Service 21/21A
Depot Fleet Size Fleet
21 21A
Hougang Depot (HGDEP) 21 4 10 Single Deckers 11 Double Deckers
SBS6014Y
SBS6624L
Mercedes-Benz O530 Citaro
SBS5023C
SBS5109P
SBS8280G
SBS8287M
SBS8289H
SBS8816L
SBS8823R
SBS8830U
Scania K230UB
SG6222A
SG6223Y
SG6233T
SG6261L
MAN ND323F
SBS3158K
SBS3186DA
SBS3726X
SBS3847E
SBS3904Z
SG5116E
SG5118A
Volvo B9TL
Bedok North Depot (BNDEP) 8 N/A 5 Single Deckers 3 Double Deckers
SBS8179S
SBS8230B
SBS8532E
SBS8662M
SBS8667A
Scania K230UB
SBS3013U
SBS7668D
SG5023P
Volvo B9TL
Notes
  • Several random BNDEP DDs will operate on Service 21 on Weekends & Public Holidays.
  • Several random HGDEP DDs will operate on Service 21 on Sundays & Public Holidays.
  • Full DD fleet for BNDEP on Weekends & Public Holidays.
  • Majority DD fleet for HGDEP on Sundays & Public Holidays.
  • Weekdays: Hougang 12A-12P / 7S / 2T; Bedok North 7A-6P / 1S (29 buses)
  • Saturdays: Hougang 12A-15P / 1T; Bedok North 7A-7P (23 buses)
  • Sundays & Public Holidays: Hougang 8A-10P / 2S / 6T; Bedok North 6A-7P (25 buses)
  • Special Weekdays: Hougang 12A-12P / 3E / 4S; Bedok North 6A-6P / 1E / 1T (28 buses)
  • Special Saturdays: Hougang 11A-13P / 2T; Bedok North 7A-8P (24 buses)
  • Special Sundays: Hougang 9A-11P / 3S / 3T; Bedok North 6A-7P (25 buses)
Service 21 duty allocation
Hougang
Weekdays
(12A-12P / 7S / 2T)
A/P SBS3158K, SBS3186D, SBS3847E, SBS3904Z, SBS5023C, SBS6014Y, SBS6624L, SG5116E, SG6222A, SG6223Y, SG6233T & SG6261L
S SBS5109P, SBS8280G, SBS8287M, SBS8289H, SBS8816L & SG5118A
T SBS8823R & SBS8830U
Saturdays
(12A-15P / 1T)
A/P SBS5023C, SBS8287M, SBS3158K, SBS3186D, SBS3726X, SBS3847E, SG5116E, SG5118A, SG6222A, SG6223Y, SG6233T & SG6261L
P SBS8823R
T Random DD
Sundays & Public Holidays
(8A-10P / 2S / 6T)
A/P SBS3158K, SBS6014Y, SBS6624L, SG6222A, SG6223Y, SG6233T & SG6261L
P SBS3847E
S SG5116E
T SBS3186D
Bedok North
Weekdays
(7A-6P / 1S)
A/P SBS3013U, SBS7668D, SBS8179S, SBS8532E, SBS8662M & SG5023P
A SBS8230B
S SBS8667A
Saturdays
(7A-7P)
A/P SBS3013U, SBS7668D, SG5023P & 4 Random DDs
Sundays & Public Holidays
(6A-7P)
A/P SBS3013U, SBS7668D, SG5023P & 3 Random DDs
P Random DD

Route Information

Frequency

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 St. Michael's 07 - 15 minutes 08 - 16 minutes 11 - 16 minutes 12 - 16 minutes
towards Pasir Ris 10 - 15 minutes 08 - 15 minutes 08 - 17 minutes 12 - 16 minutes

Special Departures

  • icon
    82069
    Aft Lor 106 Changi
    Changi Rd
    →
    icon
    52499
    • Weekdays: 05:55 (SG5116E) & 06:12 (SBS8179S)
    • Saturdays: 05:55 (SG6233T) & 06:06 (SBS3013U)
    • Sundays & Public Holidays: 05:55 (SBS3158K)


  • icon
    80089
    Bef Lor 18 Geylang
    Geylang Rd
    →
    icon
    52499
    • Sundays & Public Holidays: 17:51 (SBS3186D), 18:15 & 18:31


  • icon
    82061
    Eunos Stn/Int
    Sims Ave
    →
    icon
    77009
    Pasir Ris Int
    Pasir Ris Dr 3
    • Weekdays: 05:50 (SG6233T), 06:00 (SG6261L), 06:18 & 06:31

Service 21A

File:SBS6166S 21A.jpeg
SBS6166S on Short-Trip Service 21A
  • icon
    80089
    Bef Lor 18 Geylang
    Geylang Rd
    →
    icon
    07231
    Bef Tai Hoe Hotel No Handicapped/disabled access
    Kitchener Rd
    • Sundays & Public Holidays: 16:52 (SBS3186D), 17:11 (DD), 17:22 (DD), 17:42 (DD) & 17:56

Direction 1 (Pasir Ris → St. Michael's)

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[Show/Hide Full Route Details]

Bus Stops Point of Interest Weekdays Saturdays Suns / PHs
First bus Last bus First bus Last bus First bus Last bus
icon
77009
Pasir Ris Int(Berth B1)
Pasir Ris Dr 3
EW1Pasir Ris
Pasir Ris Mall
Pasir Ris Town Park
Whitesands Mall 		05:30 00:00 05:30 00:00 05:30 00:00
icon
76229
Opp Tampines East Stn
Tampines Ave 7
DT33Tampines East 05:54 00:21 05:52 00:22 05:51 00:21
icon
76149
Opp Tampines Stn/Int
Tampines Ave 4
EW2DT32Tampines
Tampines 1 		05:58 00:24 05:56 00:25 05:54 00:23
icon
75059
Bef Tampines West Stn
Tampines Ave 1
DT31Tampines West
SAFRA Tampines 		06:03 00:29 06:01 00:29 05:59 00:28
icon
83109
Opp Eunos Stn
Jln Eunos
EW7Eunos 06:25 00:46 06:22 00:46 06:17 00:43
icon
80089
Bef Lor 18 Geylang
Geylang Rd
21A 06:04 00:56 06:04 00:57 06:04 00:54
icon
80101
Kallang Stn/Opp Blk 2C
Lor 1 Geylang
21AEW10Kallang 06:08 01:00 06:08 01:01 06:08 00:58
icon
07231
Bef Tai Hoe Hotel No Handicapped/disabled access
Kitchener Rd
21ACity Square Mall
Mustafa Centre 		06:16 01:07 06:16 01:09 06:16 01:06
icon
07211
Aft Farrer Pk Stn Exit G
S'goon Rd
NE8Farrer Park
City Square Mall 		06:18 01:08 06:18 01:11 06:18 01:07
icon
50031
Opp Novena Ch
Thomson Rd
NS20Novena 06:28 01:16 06:27 01:19 06:27 01:14
icon
52129
Blk 29
Jln Bahagia
1
21(towards St. Michael's Terminal)
 06:40 01:24 06:40 01:28 06:39 01:22
icon
52049
Blk 19
Jln Tenteram
1
21(towards St. Michael's Terminal)
 06:41 01:25 06:41 01:29 06:40 01:23
icon
52119
Opp Blk 65
Jln Tenteram
1
21(towards St. Michael's Terminal)
 06:43 01:27 06:43 01:31 06:42 01:25
icon
52499
St. Michael's Ter(Berth B1)
Whampoa Rd
 06:45 01:28 06:46 01:32 06:42 01:26
  • 1: This service calls at this stop twice (towards St Michael’s and towards Pasir Ris). Commuters are to check the bus destination before boarding.

Direction 2 (St. Michael's → Pasir Ris)

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[Show/Hide Full Route Details]

Bus Stops Point of Interest Weekdays Saturdays Suns / PHs
First bus Last bus First bus Last bus First bus Last bus
icon
52499
St. Michael's Ter(Berth B1)
Whampoa Rd
 05:30 00:00 05:30 00:00 05:30 00:00
icon
52129
Blk 29
Jln Bahagia
1
21(towards Pasir Ris Interchange)
 05:32 00:02 05:32 00:02 05:32 00:02
icon
52049
Blk 19
Jln Tenteram
1
21(towards Pasir Ris Interchange)
 05:33 00:03 05:33 00:03 05:33 00:03
icon
52119
Opp Blk 65
Jln Tenteram
1
21(towards Pasir Ris Interchange)
 05:35 00:04 05:35 00:05 05:35 00:05
icon
50038
Novena Stn
Thomson Rd
NS20Novena
Velocity @ Novena Square
Tan Tock Seng Hospital 		05:45 00:14 05:46 00:14 05:46 00:15
icon
60199
Boon Keng Stn/Blk 22
Boon Keng Rd
NE9Boon Keng 05:54 00:20 05:54 00:22 05:54 00:22
icon
80109
Opp Kallang Stn/Blk 2C
Lor 1 Geylang
EW10Kallang 05:59 00:24 05:59 00:26 05:59 00:26
icon
81011
Aft Aljunied Stn
Sims Ave
EW9Aljunied 06:05 00:29 06:04 00:31 06:04 00:31
icon
82011
Aft Paya Lebar Quarter
Sims Ave
EW8CC9Paya Lebar
Paya Lebar Quarter
Singpost Centre 		06:10 00:33 06:08 00:35 06:09 00:35
icon
82061
Eunos Stn/Int
Sims Ave
EW7Eunos 05:50 00:36 06:11 00:38 06:12 00:38
icon
83101
Eunos Stn
Jln Eunos
EW7Eunos 05:52 00:38 06:13 00:39 06:14 00:39
icon
75051
Tampines West Stn Exit B
Tampines Ave 1
DT31Tampines West
SAFRA Tampines 		06:14 00:58 06:33 00:58 06:36 00:59
icon
76141
Tampines Stn/Int
Tampines Ave 4
EW2DT32Tampines
Tampines 1 		06:20 01:02 06:38 01:02 06:41 01:04
icon
76221
Tampines East Stn Exit A
Tampines Ave 7
DT33Tampines East 06:26 01:06 06:42 01:06 06:45 01:08
icon
77009
Pasir Ris Int(Alighting)
Pasir Ris Dr 3
EW1Pasir Ris
Pasir Ris Mall
Pasir Ris Town Park
Whitesands Mall 		06:50 01:27 07:03 01:25 07:03 01:26
  • 1: This service calls at this stop twice (towards Pasir Ris and towards St Michael’s). Commuters are to check the bus destination before boarding.

Historical Information

Operator Route Year Date Service changes
SBS Transit
(Current)
Known as SBS prior to 1 November 2001 		Pasir Ris ↔ Lor 1 Geylang 1992 29 November Introduced between Pasir Ris Int and Lor 1 Geylang Ter under TransitLink Network Integration Exercise Phase 10.
Pasir Ris ↔ St. Michael's 1993 23 May Integrated with Service 4 and extended to St Michael's Ter under TransitLink Network Integration Exercise Phase 13.
1994 TBC Skips the bus stop outside Kallang Stn along Sims Ave.
1999 TBC Serves new pair of bus stops outside and opposite The Clearwater Condo along Bedok Reservoir Rd.
2001 18 February Serves new staggered bus stop outside Novena Stn along Thomson Rd, skipping the bus stop outside Novena Ch.
2002 TBC Serves new pair of bus stops opposite and between Blks 731 and 734 along Bedok Reservoir Rd.
2003 21 June Amended to ply Bendemeer Rd, Jln Besar, Kitchener Rd and Serangoon Rd under North East Line Rationalisation Phase 1.
2004 27 April Amended to ply Geylang Rd, Kallang Rd and Sims Ave towards St. Michael's Ter with the temporary conversion of Lor 1 Geylang to one-way traffic.
6 December Amended to ply the reinstated Lor 1 Geylang towards St. Michael's Ter, skipping Geylang Rd, Kallang Rd and Sims Ave.
2006 26 June Designated wheelchair-accessible bus service (WAB). WAB
21Pasir Ris ↔ St. Michael's
21AGeylang Rd → Kitchener Rd
 2014 25 May
21AIntroduced from Geylang Rd (Bef Lor 18 Geylang) to Kitchener Rd (Bef Tai Hoe Hotel) on Sundays and Public Holidays. Wheelchair-accessible bus service (WAB) at launch. WAB
2016 24 April Amended to ply Jln Tenteram in both directions.
2022 30 October Temporarily amended to ply Pasir Ris St 11 and Pasir Ris St 12 with the partial closure of Pasir Ris Dr 1 to facilitate the construction of CR4Pasir Ris East station on the Cross Island Line.
icon
Bishan – Toa Payoh Bus Package 		[ V • T • E]
Services Trunk 8 • 21 • 21X • 26 • 50 • 52 • 54 • 56 • 73 • 88 • 124 • 125 • 139 • 142 • 155 • 157 • 186 SBS Transit
Operated under Negotiated Contract
Feeder Toa Payoh 230 • 231 • 232 • 235 • 238
Bishan 410G • 410W
Defunct 128 • 139M • CT8 • 1N
Bus Fleet Hougang Depot (HGDEP) and Braddell Bus Park (BRBP)
Single Deckers MAN NL323F Euro VI
Mercedes-Benz O530 Citaro Batch 1 • Batch 2 • Batch 3
Scania K230UB Euro IV (Batch 1 • Batch 2) • Euro V (Batch 1 • Batch 2)
Double Deckers MAN ND323F Euro V (Batch 3) • Euro VI (Batch 1 • Batch 2)
Volvo B9TL Wright Eclipse Gemini 2 (Batch 1 • Batch 2 • Batch 3 • Batch 4)
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