Since 1977, high capacity buses have been operated by public bus operators in Singapore to cater to bus services with high passenger demands by providing more capacity with more seats or standing space. The deployment of such buses also helps to optimise limited manpower and fleet operated on heavily utilised bus services.
2 types of high capacity buses are currently operated by public bus operators in Singapore – double-deck buses and articulated buses. SBS Transit, SMRT Buses and Tower Transit Singapore currently operate both double-deck and articulated buses, while Go-Ahead Singapore operate double-deck buses only.
Deployment History for High Capacity Buses (2005 – Present)
The following bullet list reflects the timeline of commencement dates for the deployment of high capacity double-deck/articulated buses on operational bus services that currently operate them on a permanent basis only since 2005.
Other operational bus services which started the operation of high capacity buses between 1977 and 2004 are excluded due to the lack of information on their actual implementation dates. Deployment of high capacity buses on defunct bus services are available in Page 2 of this article.
- 2024 (25 Nov): Start of double-deck bus deployments on Bus Service 674
- 2024 (17 Aug): Start of double-deck bus deployments on Bus Service 84G/84W
- 2023 (27 Nov): Start of double-deck bus deployments on Bus Service 870
- 2023 (9 Oct): Start of double-deck bus deployments on Bus Service 654 (AM peak only)
- 2023 (25 Sep): Start of double-deck bus deployments on Bus Service 992 (Weekdays & Saturdays only)
- 2023 (29 May): Start of double-deck bus deployments on Bus Services 382G & 386
- 2022 (23 Jan): Launch of Bus Service 801 with double-deck buses
- 2021 (5 Sep): Start of double-deck bus deployments on Bus Services 171 & 853/853M
- 2021 (31 May): Start of double-deck bus deployments on Bus Services 97e, 335 & 651
- 2021 (31 May): Takeover of Bus Service 657 from SMRT Buses with double-deck buses
- 2021 (30 May): Start of double-deck bus deployments on Bus Service 925M
- 2021 (10 May): Start of double-deck bus deployments on Bus Service 882 (AM peak only)
- 2020 (25 Oct): Launch of Bus Service 114 with double-deck buses
- 2020 (30 Aug): Launch of Bus Service 972M with double-deck buses
- 2020 (2 Jun): Start of double-deck bus deployments on Bus Service 656 (AM peak only)
- 2020 (11 May): Start of double-deck bus deployments on Bus Service 859B (AM peak only)
- 2020 (30 Mar): Takeover of Bus Service 670 from Tong Tar Transport Service with double-deck buses
- 2020 (9 Mar): Start of double-deck bus deployments on Bus Service 16; Launch of Bus Service 16M with double-deck buses
- 2020 (13 Jan): Takeover of Bus Services 671 & 672 from Rui Feng Chartered with double-deck buses
- 2020 (12 Jan): Launch of Bus Service 883M with double-deck buses
- 2020 (6 Jan): Takeover of Bus Service 652 from Ren Quan Transport with double-deck buses
- 2019 (18 Nov): Start of double-deck bus deployments on Bus Service 382W (AM peak only)
- 2019 (1 Jul): Start of double-deck bus deployments on Bus Service 68
- 2019 (23 Jun): Launch of Bus Service 901M with double-deck buses
- 2019 (16 Jun): Start of double-deck bus deployments on Bus Service 400 (Weekends & PHs only)
- 2019 (23 Apr): Start of double-deck bus deployments on Bus Service 912A (Weekdays only)
- 2019 (25 Feb): Start of double-deck bus deployments on Bus Services 178 & 324 (Weekdays only)
- 2019 (24 Feb): Start of double-deck bus deployments on Bus Service 855 (Sundays & PHs only)
- 2019 (15 Feb): Start of double-deck bus deployments on Bus Service 333 (Crossovers from Bus Service 334)
- 2019 (2 Jan): Takeover of Bus Services 660 & 661 from Aedge Holdings with double-deck buses
- 2018 (23 Dec): Start of double-deck bus deployments on Bus Service 859 (Sundays & PHs only, later extended to weekdays)
- 2018 (17 Dec): Start of double-deck bus deployments on Bus Services 301 & 911 (Weekdays only)
- 2018 (16 Dec): Start of double-deck bus deployments on Bus Services 300, 302, 912B & 913
- 2018 (18 Nov): Start of double-deck bus deployments on Bus Service 121
- 2018 (28 Oct): Launch of Bus Service 960e with double-deck buses
- 2018 (1 Oct): Start of double-deck bus deployments on Bus Service 991 (Weekdays only, later extended to weekends & PHs)
- 2018 (10 Aug): Start of double-deck bus deployments on Bus Service 655 (AM peak only)
- 2018 (9 Jul): Start of double-deck bus deployments on Bus Services 941, 974 & 990 (Weekdays only for Bus Services 941 & 990)
- 2018 (27 May): Launch of Bus Service 851e with double-deck buses
- 2018 (23 Apr): Start of double-deck bus deployments on Bus Services 901, 903 & 922
- 2018 (22 Apr): Start of double-deck bus deployments on Bus Service 980 (Sundays & PHs only, later extended to weekdays & Saturdays)
- 2018 (10 Apr): Start of double-deck bus deployments on Bus Services 184 & 900 (Weekdays only for Bus Service 184)
- 2018 (9 Apr): Start of double-deck bus deployments on Bus Service 665
- 2018 (25 Feb): Launch of Bus Services 7A & 7B with double-deck buses
- 2018 (28 Jan): Launch of Bus Services 12e & 147e with double-deck buses
- 2018 (8 Jan): Start of double-deck bus deployments on Bus Service 811
- 2017 (9 Dec): Launch of Bus Service 71 with double-deck buses
- 2017 (14 Nov): Start of double-deck bus deployments on Bus Service 883
- 2017 (21 Oct): Start of double-deck bus deployments on Bus Services 800, 804 & 812
- 2017 (15 Oct): Launch of Bus Service 807 with double-deck buses
- 2017 (28 Sep): Takeover of Bus Service 663 from Bus Hub Service with double-deck buses
- 2017 (10 Sep): Start of double-deck bus deployments on Bus Service 962
- 2017 (30 Jul): Start of double-deck bus deployments on Bus Service 123
- 2017 (16 Jul): Start of double-deck bus deployments on Bus Service 806
- 2017 (18 Jun): Launch of Bus Services 247 & 248 with double-deck buses
- 2017 (13 Apr): Takeover of Bus Service 653 from ComfortDelGro Bus with double-deck buses
- 2016 (18 Dec): Start of double-deck bus deployments on Bus Services 127 & 129
- 2016 (28 Nov): Start of double-deck bus deployments on Bus Service 48
- 2016 (21 Nov): Start of articulated bus deployments on Bus Service 301
- 2016 (18 Sep): Start of double-deck bus deployments on Bus Service 851
- 2016 (7 Sep): Start of double-deck bus deployments on Bus Service 982E
- 2016 (4 Sep): Start of double-deck bus deployments on Bus Service 83
- 2016 (12 Jun): Launch of Bus Service 46 with double-deck buses
- 2016 (20 Mar): Launch of Bus Service 134 with double-deck buses
- 2016 (20 Jan): Start of double-deck bus deployments on Bus Service 103
- 2016 (12 Jan): Start of double-deck bus deployments on Bus Service 180
- 2015 (28 Dec): Start of double-deck bus deployments on Bus Service 979
- 2015 (20 Dec): Launch of Bus Services 47, 117 & 118 with double-deck buses
- 2015 (12 Dec): Launch of Bus Service 253 with double-deck buses
- 2015 (29 Nov): Start of articulated bus deployments on Bus Service 858
- 2015 (21 Nov): Launch of Bus Service 258 with double-deck buses
- 2015 (26 Oct): Start of double-deck bus deployments on Bus Service 189
- 2015 (12 Oct): Start of double-deck bus deployments on Bus Service 981
- 2015 (5 Oct): Start of double-deck bus deployments on Bus Service 975 (Weekdays only, later extended to weekends & PHs)
- 2015 (20 Sep): Launch of Bus Service 102 with double-deck buses
- 2015 (7 Sep): Start of double-deck bus deployments on Bus Service 3
- 2015 (17 Aug): Start of double-deck bus deployments on Bus Service 4
- 2015 (16 Aug): Start of double-deck bus deployments on Bus Service 854
- 2015 (11 Aug): Start of double-deck bus deployments on Bus Service 35/35M & 868
- 2015 (14 Jul): Start of double-deck bus deployments on Bus Service 172
- 2015 (13 Jul): Start of double-deck bus deployments on Bus Service 985
- 2015 (22 Jun): Start of double-deck bus deployments on Bus Service 85
- 2015 (15 Jun): Start of double-deck bus deployments on Bus Service 961/961#
- 2015 (2 Jun): Start of double-deck bus deployments on Bus Service 39
- 2015 (18 May): Start of double-deck bus deployments on Bus Service 856
- 2015 (1 May): Start of double-deck bus deployments on Bus Service 66 (Sundays & PHs only, later extended to weekdays & Saturdays)
- 2015 (26 Apr): Start of double-deck bus deployments on Bus Service 857
- 2015 (25 Apr): Launch of Bus Service 983 with double-deck buses
- 2015 (6 Apr): Start of double-deck bus deployments on Bus Service 145
- 2015 (9 Mar): Start of double-deck bus deployments on Bus Service 506
- 2015 (16 Feb): Start of double-deck bus deployments on Bus Service 960
- 2015 (15 Feb): Start of double-deck bus deployments on Bus Service 67
- 2015 (12 Jan): Start of double-deck bus deployments on Bus Services 187 & 964
- 2014 (14 Dec): Launch of Bus Service 41 with double-deck buses
- 2014 (23 Nov): Launch of Bus Service 201 with double-deck buses
- 2014 (17 Nov): Start of double-deck bus deployments on Bus Services 61, 176 & 965
- 2014 (16 Nov): Launch of Bus Service 43M with double-deck buses
- 2014 (1 Oct): Start of double-deck bus deployments on Bus Service 169
- 2014 (15 Sep): Start of double-deck bus deployments on Bus Services 188, 951E & 963
- 2014 (25 Aug): Start of double-deck bus deployments on Bus Service 518
- 2014 (18 Aug): Start of double-deck bus deployments on Bus Services 106, 190, 850E, 966 & 969
- 2014 (13 Jul): Start of double-deck bus deployments on Bus Service 972
- 2014 (23 Jun): Start of double-deck bus deployments on Bus Service 20
- 2014 (18 May): Launch of Bus Service 143M with double-deck buses
- 2013 (14 Dec): Launch of Bus Service 49 with double-deck buses
- 2013 (30 Sep): Start of double-deck bus deployments on Bus Service 130
- 2013 (9 Sep): Start of double-deck bus deployments on Bus Service 410W
- 2013 (2 Sep): Start of double-deck bus deployments on Bus Service 101
- 2013 (26 Aug): Start of double-deck bus deployments on Bus Service 125
- 2013 (19 Jun): Start of double-deck bus deployments on Bus Service 293
- 2013 (27 May): Start of double-deck bus deployments on Bus Service 243G
- 2012 (17 Dec): Launch of Bus Service 513 with double-deck buses
- 2012 (16 Dec): Launch of Bus Service 50 with double-deck buses
- 2012 (22 Nov): Start of double-deck bus deployments on Bus Service 94
- 2012 (21 Oct): Start of double-deck bus deployments on Bus Service 119
- 2012 (25 Jun): Start of double-deck bus deployments on Bus Service 90
- 2012 (28 May): Start of double-deck bus deployments on Bus Service 109
- 2012 (10 Jan): Start of double-deck bus deployments on Bus Service 96
- 2012 (7 Jan): Start of double-deck bus deployments on Bus Services 52 & 334
- 2012 (3 Jan): Start of double-deck bus deployments on Bus Service 43
- 2011 (29 Nov): Start of double-deck bus deployments on Bus Service 54
- 2011 (28 Nov): Start of double-deck bus deployments on Bus Service 45
- 2011 (17 Oct): Start of double-deck bus deployments on Bus Service 139
- 2011 (26 Sep): Start of double-deck bus deployments on Bus Service 183
- 2011 (14 Jul): Start of double-deck bus deployments on Bus Service 291
- 2011 (15 Jun): Start of double-deck bus deployments on Bus Service 163
- 2011 (7 Mar): Start of double-deck bus deployments on Bus Service 181
- 2011 (28 Feb): Start of double-deck bus deployments on Bus Service 95
- 2010 (13 Sep): Start of double-deck bus deployments on Bus Service 240
- 2009 (26 Oct): Start of double-deck bus deployments on Bus Service 89e
- 2009 (10 Aug): Start of double-deck bus deployments on Bus Service 79
- 2009 (15 Mar): Launch of Bus Service 241 with double-deck buses
- 2008 (1 Sep): Start of double-deck bus deployments on Bus Service 58
- 2008 (11 Aug): Start of double-deck bus deployments on Bus Service 6
- 2008 (4 Aug): Start of double-deck bus deployments on Bus Service 151
- 2008 (26 May): Start of double-deck bus deployments on Bus Service 37
- 2008 (20 May): Start of double-deck bus deployments on Bus Service 78
- 2008 (24 Mar): Start of double-deck bus deployments on Bus Service 185
- 2008 (18 Feb): Start of double-deck bus deployments on Bus Services 225G & 225W
- 2008 (30 Jan): Start of double-deck bus deployments on Bus Service 186
- 2008 (7 Jan): Start of double-deck bus deployments on Bus Service 5
- 2007 (10 Sep): Start of double-deck bus deployments on Bus Service 10e
- 2007 (3 Sep): Start of double-deck bus deployments on Bus Services 242 & 243W
- 2007 (13 Jul): Start of double-deck bus deployments on Bus Service 13
- 2007 (26 Jun): Start of double-deck bus deployments on Bus Service 59
- 2007 (24 May): Start of double-deck bus deployments on Bus Service 502
- 2005 (8 Oct): Start of double-deck bus deployments on Bus Service 19
Double-Deck Buses
Double-deck buses were first introduced by the Singapore Bus Service (SBS) in 1977, operating on now defunct Bus Service 86 between Hougang New Town and Shenton Way. Additional capacity is provided through more seating on the upper deck in comparison to single-deck buses. However, standing is not allowed on the upper deck due to safety reasons.
With the introduction of air-conditioned double-deck buses since 1993, the overall capacity for double-deck buses have increased with more seats fitted on their upper decks. Previously, the total capacity on non-air-conditioned double-deck buses are comparable with that of air-conditioned single-deck buses due to the shorter lengths of non-air-conditioned double-deck buses than standard rigid buses.
Double-deck buses used to be operated by SBS (now SBS Transit) only until 2014, when SMRT Buses started its operation of new double-deck buses procured to replace its retiring fleet of articulated buses. Initially, SMRT Buses intended to deploy double-deck buses on heavily utilised trunk and Express services only, as commuters tend to travel longer distances on these services. However, as more double-deck buses were purchased by the Land Transport Authority (LTA) in favour of articulated buses, SMRT Buses eventually started deploying double-deck buses on feeder services from 2018.
Tower Transit Singapore and Go-Ahead Singapore started operating double-deck buses when taking over their awarded route packages under the Bus Contracting Model (BCM) in 2016.
Since the 1st quarter of 2021, 100 double-deck buses with an additional exit door have been introduced on bus services across the 4 bus operators.
Existing Deployments of Double-Deck Buses
Only permanent deployments of double-deck buses on operational bus services are listed in the table below:
SBS / SBS Transit (since 1977):
| Service | Deployment Year/Date | Remarks |
| 4 | 17 Aug 2015 | |
| 5 | 7 Jan 2008 | |
| 5A | 14 Aug 2023 (Day 1) | Weekdays only |
| 5B | ||
| 7 | ||
| 7A | 25 Feb 2018 (Day 1) | |
| 7B | ||
| 8 | ||
| 9 | ||
| 9A | Weekdays only | |
| 9B | 27 Nov 2023 (Day 1) | |
| 10 | ||
| 10e | 20 Sep 2007 | Weekdays only |
| 13 | 13 Jul 2007 | |
| 13A | 9 Apr 2012 | Weekdays only |
| 14 | ||
| 14A | Sundays & PHs only | |
| 16 | 9 Mar 2020 | Weekdays only |
| 16M | 9 Mar 2020 (Day 1) | Weekdays only |
| 19 | 8 Oct 2005 | |
| 20 | 23 Jun 2014 | Weekdays only |
| 20A | 27 May 2024 (Day 1) | Weekdays only |
| 21 | ||
| 21A | 25 May 2014 (Day 1) | Sundays & PHs only |
| 22 | Weekdays only | |
| 23 | ||
| 25 | ||
| 28 | ||
| 30 | ||
| 31 | ||
| 31A | 10 Jan 2005 (Day 1) | Weekdays only (excluding ITE vacation) |
| 35 | 11 Aug 2015 | Weekdays & Saturdays only |
| 35M | 11 Aug 2015 | Uses buses from Service 35 |
| 37 | 26 May 2008 | |
| 39 | 2 Jun 2015 | Weekdays & Saturdays only |
| 39A | 27 May 2024 (Day 1) | Weekdays only |
| 45 | 28 Nov 2011 | |
| 45A | Weekdays only | |
| 46 | 12 Jun 2016 (Day 1) | |
| 47 | 20 Dec 2015 (Day 1) | |
| 48 | 28 Nov 2016 | |
| 50 | 16 Dec 2012 (Day 1) | |
| 51 | ||
| 51A | 12 May 2002 (Day 1) | After last bus of Service 51 from Jurong East daily |
| 52 | 7 Jan 2012 | Weekdays only |
| 54 | 29 Nov 2011 | Weekdays & Saturdays only |
| 55 | ||
| 55B | 25 Nov 2013 (Day 1) | Weekdays only |
| 56 | Weekdays & Saturdays only | |
| 58 | 1 Sep 2008 | Weekdays & Saturdays only |
| 58A | 10 Apr 2017 (Day 1) | Weekdays only |
| 58B | ||
| 59 | 26 Jun 2007 | Weekdays only |
| 60 | 2 Sep 2003 | |
| 60A | Weekdays only | |
| 64 | ||
| 65 | ||
| 69 | ||
| 70 | Weekdays & Saturdays only | |
| 70M | Uses buses from Service 70 | |
| 70A | After last bus of Service 70M daily | |
| 71 | 9 Dec 2017 (Day 1) | |
| 72 | ||
| 72A | 30 Jul 2012 (Day 1) | Weekdays only |
| 72B | 2 Jan 2013 (Day 1) | Weekdays only (excluding ITE vacation) |
| 74 | ||
| 76 | ||
| 80 | ||
| 80A | Weekdays only | |
| 81 | ||
| 86 | ||
| 86A | 24 Jun 2024 (Day 1) | Weekdays only |
| 86B | ||
| 87 | ||
| 88 | ||
| 88A | 8 Oct 2012 (Day 1) | Weekdays only |
| 88B | ||
| 89 | ||
| 89A | 10 Apr 2017 (Day 1) | Weekdays only |
| 89e | 26 Oct 2009 | Weekdays only |
| 90 | 25 Jun 2012 | |
| 90A | Weekdays only | |
| 91 | Weekdays only, uses buses from Service 74 | |
| 94 | 22 Nov 2012 | Weekdays only |
| 95 | 28 Feb 2011 | |
| 95B | Weekdays only | |
| 99 | ||
| 101 | 2 Sep 2013 | Weekdays only |
| 102 | 20 Sep 2015 (Day 1) | |
| 102A | 27 Mar 2023 (Day 1) | Weekdays only |
| 103 | 20 Jan 2016 | Weekdays & Saturdays only |
| 107 | Weekdays & Saturdays only | |
| 107M | Uses buses from Service 107 | |
| 109 | 28 May 2012 | |
| 109A | 26 May 2014 (Day 1) | Weekdays only |
| 111 | ||
| 114 | 25 Oct 2020 (Day 1) | |
| 117 | 20 Dec 2015 (Day 1) | |
| 117A | 14 Jan 2019 (Day 1) | Weekdays only |
| 121 | 18 Nov 2018 | |
| 123 | 30 Jul 2017 | |
| 125 | 26 Aug 2013 | Weekdays only |
| 127 | 18 Dec 2016 (Day 1) | |
| 129 | 18 Dec 2016 (Day 1) | |
| 129A | 26 Aug 2024 (Day 1) | Weekdays only |
| 129B | 26 Aug 2024 (Day 1) | Weekdays only |
| 130 | 30 Sep 2013 | |
| 132 | ||
| 133 | ||
| 134 | 20 Mar 2016 (Day 1) | |
| 139 | 17 Oct 2011 | Weekdays only |
| 145 | 6 Apr 2015 | |
| 147 | ||
| 147A | Weekdays only | |
| 151 | 4 Aug 2008 | |
| 153 | ||
| 154 | Weekdays only | |
| 154A | 19 Nov 2012 (Day 1) | Weekdays only |
| 154B | 6 Jan 2014 (Day 1) | Weekdays only |
| 157 | ||
| 161 | ||
| 163 | 15 Jun 2011 | |
| 163A | 10 Feb 2019 (Day 1) | After last bus of Service 163 from Sengkang daily |
| 163B | 9 Oct 2023 (Day 1) | Weekdays only |
| 165 | ||
| 166 | ||
| 168 | ||
| 174 | ||
| 186 | 30 Jan 2008 | Weekdays only |
| 196 | ||
| 196A | 17 Oct 2005 (Day 1) | Weekdays only |
| 197 | ||
| 198 | ||
| 198A | 6 Feb 2012 (Day 1) | |
| 201 | 23 Nov 2014 (Day 1) | |
| 222 | ||
| 225G | 18 Feb 2008 | Weekdays only |
| 225W | 18 Feb 2008 | Weekdays & Saturdays only |
| 291 | 14 Jul 2011 | Weekdays only |
| 293 | 19 Jun 2013 | |
| 324 | 25 Feb 2019 | Weekdays only |
| 410W | 9 Sep 2013 | |
| 506 | 9 Mar 2015 | Weekdays only |
| 513 | 17 Dec 2012 (Day 1) | Weekdays only |
| 652 | 6 Sep 2021 | Weekdays only |
| 654 | 9 Oct 2023 | Weekdays only |
| 655 | 10 Aug 2018 | Weekdays only |
| 660 | 2 Jan 2019 | Weekdays only |
| 660M | 13 Nov 2024 | Weekdays only |
| 671 | 13 Jan 2020 | Weekdays only |
| 672 | 13 Jan 2020 | Weekdays only |
| 800 | 18 Mar 2018 | |
| 804 | 18 Mar 2018 | |
| 806 | 25 Mar 2018 | |
| 807 | 18 Mar 2018 | |
| 807A | ||
| 807B | 25 Jan 2021 (Day 1) | Weekdays only |
| 811 | 18 Mar 2018 | |
| 811A | 19 Mar 2018 | Weekdays only |
| 812 | 25 Mar 2018 | |
| 850E | 26 Mar 2018 | Weekdays only |
| 851 | 25 Mar 2018 | |
| 851e | 27 May 2018 (Day 1) |
SMRT Buses (since 13 Jul 2014):
| Service | Deployment Year/Date | Remarks |
| 61 | 17 Nov 2014 | Weekdays only |
| 67 | 15 Feb 2015 | |
| 172 | 14 Jul 2015 | |
| 176 | 17 Nov 2014 | Weekdays & Saturdays only |
| 178 | 25 Feb 2019 | Weekdays only |
| 179 | 1 Sep 2024 | |
| 179A | 2 Sep 2024 | Weekdays only (excluding NTU vacation) |
| 180 | 12 Jan 2016 | |
| 180A | Peak hours on weekdays and after last bus of Service 180 daily | |
| 181 | 1 Sep 2024 | |
| 181M | 9 Sep 2024 | Weekdays only, uses buses from Service 181 |
| 182/182M | 15 Sep 2024 | |
| 182A | 29 Dec 2024 (Day 1) | Sundays & Public Holidays only, uses buses from Service 182/182M |
| 184 | 10 Apr 2018 | Weekdays only |
| 185 | 15 Sep 2024 | |
| 187 | 12 Jan 2015 | |
| 188 | 15 Sep 2014 | |
| 190 | 18 Aug 2014 | |
| 190A | Weekdays only | |
| 192 | 1 Sep 2024 | |
| 193 | 1 Sep 2024 | |
| 199 | 1 Sep 2024 | |
| 240 | 1 Sep 2024 | |
| 240A | 2 Sep 2024 | Weekdays only |
| 241 | 1 Sep 2024 | |
| 241A | 2 Sep 2024 | Weekdays only |
| 242 | 1 Sep 2024 | |
| 243G | 1 Sep 2024 | |
| 243W | 1 Sep 2024 | |
| 246 | 1 Sep 2024 | |
| 247 | 15 Sep 2024 | |
| 248 | 15 Sep 2024 | |
| 248M | 15 Sep 2024 | Uses buses from Service 248 |
| 249 | 1 Sep 2024 | |
| 249A | 2 Sep 2024 (Day 1) | Weekdays only, uses buses from Service 249 |
| 251 | 1 Sep 2024 | |
| 252 | 1 Sep 2024 | |
| 253 | 15 Sep 2024 | |
| 254 | 15 Sep 2024 | |
| 255 | 15 Sep 2024 | |
| 257 | 15 Sep 2024 | |
| 258 | 15 Sep 2024 | |
| 300 | 16 Dec 2018 | Saturdays, Sundays & Public Holidays only |
| 301 | 17 Dec 2018 | Weekdays only |
| 302 | 16 Dec 2018 | |
| 302A | Weekdays only | |
| 502 | 15 Sep 2024 | |
| 502A | 16 Sep 2024 | Weekdays only |
| 665 | 31 May 2021 | Weekdays only |
| 868E | 11 Aug 2015 | Weekdays only |
| 900 | 10 Apr 2018 | |
| 901 | 23 Apr 2018 | |
| 901M | 23 Jun 2019 (Day 1) | |
| 903 | 23 Apr 2018 | |
| 903M | 23 Apr 2018 | Weekdays only, uses buses from Service 903 |
| 911 | 17 Dec 2018 | |
| 912A | 23 Apr 2019 | Weekdays only |
| 912B | 16 Dec 2018 | |
| 913 | 16 Dec 2018 | |
| 922 | 23 Apr 2018 | |
| 925M | 30 May 2021 | Sundays & PHs only |
| 951E | 15 Sep 2014 | Weekdays only |
| 960 | 16 Feb 2015 | |
| 960e | 28 Oct 2018 (Day 1) | |
| 961 | 15 Jun 2015 | Weekdays & Saturdays only |
| 961M | 21 Jun 2015 | Sundays & PHs only, uses buses from Service 961 |
| 962 | 10 Sep 2017 | |
| 964 | 12 Jan 2015 | |
| 972 | 13 Jul 2014 | |
| 972A | After last bus of Service 972 daily | |
| 972M | 30 Aug 2020 (Day 1) | Uses buses from Service 972 |
| 974 | 15 Sep 2024 | |
| 974A | After last bus of Service 974 daily | |
| 975 | 5 Oct 2015 | Uses buses from Service 972 on weekdays; deployed throughout the day on Saturdays, Sundays & PHs |
| 975A | 1 Feb 2020 | Uses buses from Service 991 |
| 975B | 10 Mar 2018 | |
| 975C | 11 Apr 2021 (Day 1) | After last bus of Service 975 on Saturdays, Sundays & PHs |
| 979 | 28 Dec 2015 | |
| 982E | 7 Sep 2016 | Weekdays only |
| 983 | 25 Apr 2015 (Day 1) | |
| 983A | 30 Sep 2018 (Day 1) | After last bus of Service 983 daily |
| 985 | 13 Jul 2015 | Weekdays & Saturdays only |
| 991 | 1 Oct 2018 | |
| 991A | After last bus of Service 991 from Bt Batok daily | |
| 991B | After last bus of Service 991 from Choa Chu Kang daily | |
| 991C | 26 Oct 2020 (Day 1) | Weekdays only |
Tower Transit Singapore (since 29 May 2016):
| Service | Deployment Year/Date | Remarks |
| 41 | 26 Jun 2016 | |
| 49 | 26 Jun 2016 | |
| 66 | 12 Jun 2016 | |
| 78 | 12 Jun 2016 | |
| 78A | 13 Jun 2016 | Weekdays only |
| 79 | 12 Jun 2016 | |
| 79A | 12 Jun 2016 (Day 1) | After last bus of Service 79 daily |
| 96 | 26 Jun 2016 | Weekdays only |
| 96A | 27 Jun 2016 | Weekdays only (excluding NUS vacation) |
| 96B | ||
| 97 | 12 Jun 2016 | |
| 97e | 31 May 2021 | Weekdays only |
| 98 | 26 Jun 2016 | |
| 98A | 27 Jun 2016 | Weekdays only |
| 98B | ||
| 98M | 26 Jun 2016 | Uses buses from Service 98 |
| 106 | 29 May 2016 | |
| 106A | 30 May 2016 | Weekdays only |
| 143 | 12 Jun 2016 | |
| 143M | 12 Jun 2016 | |
| 169 | 19 Sep 2021 | |
| 169A | 20 Sep 2021 | Weekdays only |
| 171 | 5 Sep 2021 | |
| 183 | 26 Jun 2016 | |
| 183B | 27 Jun 2016 | Weekdays only |
| 189 | 29 May 2016 | |
| 189A | Peak hours on weekdays and after last bus of Service 189 daily | |
| 285 | 26 Jun 2016 | |
| 333 | 15 Feb 2019 | Weekdays & Saturdays only |
| 334 | 26 Jun 2016 | |
| 335 | 31 May 2021 | Weekdays only |
| 651 | 31 May 2021 | Weekdays only |
| 653 | 31 May 2021 | Weekdays only |
| 656 | 4 Oct 2021 | Weekdays morning peak only |
| 657 | 31 May 2021 | Weekdays only |
| 663 | 28 Sep 2017 | Weekdays only |
| 670 | 6 Sep 2021 | Weekdays only |
| 674 | 25 Nov 2024 (Day 1) | Weekdays only |
| 801 | 23 Jan 2022 (Day 1) | |
| 853 | 6 Sep 2021 | Weekdays & Saturdays only |
| 853M | 5 Sep 2021 | Sundays & PHs only |
| 854 | 5 Sep 2021 | |
| 854e | 6 Sep 2021 | Weekdays only, uses buses from Service 854 |
| 855 | 5 Sep 2021 | |
| 856 | 5 Sep 2021 | |
| 856A | 25 Jan 2023 (Day 1) | Weekdays only |
| 856B | 25 Jan 2023 (Day 1) | Weekdays only |
| 857 | 5 Sep 2021 | |
| 857B | 5 Sep 2021 | Peak hours on weekdays and after last bus of Service 857 daily |
| 859 | 3 Oct 2021 | |
| 859A | 4 Oct 2021 | Weekdays only, uses buses from Service 859 |
| 859B | 4 Oct 2021 | Weekdays only, uses buses from Service 859 |
| 870 | 27 Nov 2023 | |
| 882 | 4 Oct 2021 | Weekdays only |
| 883 | 3 Oct 2021 | |
| 883B | 4 Oct 2021 | Weekdays only |
| 883M | 3 Oct 2021 | Sundays & PHs only |
| 941 | 9 Jul 2018 | Weekdays only |
| 963 | 19 Sep 2021 | |
| 963e | 20 Sep 2021 | Weekdays only, uses buses from Service 963 |
| 965 | 19 Sep 2021 | |
| 965A | 20 Sep 2021 | Weekdays only |
| 966 | 19 Sep 2021 | |
| 966A | After last bus of Service 966 daily | |
| 969 | 19 Sep 2021 | |
| 969A | 20 Sep 2021 | Weekdays only |
| 980 | 3 Oct 2021 | |
| 981 | 4 Oct 2021 | Weekdays & Saturdays only |
| 990 | 9 Jul 2018 | Weekdays & Saturdays only |
| 992 | 25 Sep 2023 | Weekdays & Saturdays only |
Go-Ahead Singapore (since 4 Sep 2016):
| Service | Deployment Year/Date | Remarks |
| 2 | 18 Sep 2016 | |
| 2B | 25 Sep 2023 (Day 1) | |
| 3 | 4 Sep 2016 | Weekdays only |
| 3A | Peak hours and after last bus of Service 3 from Tampines on weekdays | |
| 6 | 19 Sep 2016 | Weekdays & Saturdays only |
| 12 | 18 Sep 2016 | |
| 12e | 28 Jan 2018 (Day 1) | |
| 17 | 18 Sep 2016 | |
| 17A | ||
| 43 | 4 Sep 2016 | |
| 43M | 4 Sep 2016 | |
| 62 | 4 Sep 2016 | |
| 62A | 5 Sep 2016 | Weekdays only |
| 68 | 1 Jul 2019 | |
| 68A | 18 Nov 2019 (Day 1) | Weekdays only |
| 68B | ||
| 83 | 4 Sep 2016 | |
| 84G | 17 Aug 2024 | |
| 84W | 17 Aug 2024 | |
| 85 | 4 Sep 2016 | |
| 85A | 25 Mar 2019 (Day 1) | Weekdays only |
| 118 | 4 Sep 2016 | |
| 118A | 10 Apr 2017 (Day 1) | Weekdays only |
| 118B | ||
| 119 | 4 Sep 2016 | |
| 382G | 29 May 2023 | Weekdays only |
| 382W | 18 Nov 2019 | |
| 386 | 29 May 2023 | Weekdays only |
| 518 | 18 Sep 2016 | |
| 518A | 19 Sep 2016 | Weekdays only |
| 661 | 2 Jan 2019 | Weekdays only |
Articulated Buses
Articulated buses were first introduced by the Trans-Island Bus Service (TIBS) in 1996 on Bus Service 171. Additional capacity is provided through more seating and standing space in its trailer section. The first generation of Mercedes-Benz O405G buses introduced in 1997 had a higher overall capacity than air-conditioned double-deck buses operating at the time.
In 1998 and 1999 respectively, 2 articulated demonstrator units, registered as SBS998Y and SBS999U were operated by SBS/SBS Transit on Bus Services 18, 195 and 290. Both units were subsequently exported overseas in 2006, as double-deck buses were deemed more suitable for SBS Transit bus services after the trial periods of both articulated buses. However, articulated buses made a recurrence under SBS Transit in 2018, when 10 units of the MAN NG363F articulated buses were transferred to the operator under the Seletar Bus Package. All articulated buses under SBS Transit are restricted to operate on feeder bus services within Yishun only.
Tower Transit Singapore commenced the operation of articulated buses on Bus Service 858 when the operator takes over the bus service in 2021.
Existing Deployments of Articulated Buses
Only permanent deployments of articulated buses on operational bus services are listed in the table below:
TIBS / SMRT Buses (since 1996):
| Service | Deployment Year/Date | Remarks |
| 180 | Weekdays only | |
| 180A | Weekdays only | |
| 184 | Weekdays only | |
| 300 | Saturdays, Sundays & PHs only | |
| 302 | ||
| 302A | 15 Sep 2014 (Day 1) | Weekdays only |
| 903 | Weekdays only | |
| 903M | Weekdays only | |
| 911 | Weekdays only | |
| 912 | ||
| 912B | 10 Sep 2017 (Day 1) | Weekdays only |
| 913 | Weekdays only |
SBS Transit (since 18 Mar 2018):
| Service | Deployment Year/Date | Remarks |
| 800 | 18 Mar 2018 | Saturdays, Sundays & PHs only |
| 804 | 18 Mar 2018 | |
| 806 | 25 Mar 2018 | |
| 807 | 18 Mar 2018 | |
| 807A | ||
| 807B | 25 Jan 2021 (Day 1) | Weekdays only |
| 811 | 18 Mar 2018 | |
| 811A | 19 Mar 2018 | Weekdays only |
Tower Transit Singapore (since 19 Sep 2021):
| Service | Deployment Year/Date | Remarks |
| 858 | 19 Sep 2021 | |
| 858A | After last bus of Service 858 daily |
See Page 2 for public bus services that formerly operated high capacity buses in Singapore
Can add a column for some of the buses to show if they are full-fleet DD…
If CCK-BPJ awarded to Go-Ahead,Then all 4 operators operate both Double decker and Articulate buses.