Deployment Timeline of High Capacity Buses

Since the late 1970s, 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 helped to optimise the limited manpower and fleet required 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 and SMRT Buses currently operate both double-deck and articulated buses, while Tower Transit Singapore and Go-Ahead Singapore operate double-deck buses only.


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 (and later SBS Transit) only until 2014, when SMRT Buses started the operation of new double-deck buses procured to replace its retiring fleet of articulated buses. When first purchased, SMRT Buses intended to deploy double-deck buses on heavily utilised trunk 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 in 2018.

Tower Transit Singapore and Go-Ahead Singapore started operating double-deck buses along with their awarded route packages under the Bus Contracting Model (BCM) in 2016.

The following tables provide an overall timeline of the deployment of double-deck buses on bus services in Singapore:

Deployment of Double-Deck Buses (in chronological order)

Only permanent deployments (former/current) of double-deck buses are listed in the table below.

Year/Date of Deployment Bus Service(s)
1977 86159
1978 165
1980 30, 169SBS
1981 140, 162, 178SBS, 197, 198
1982 196
1983 7, 10, 12, 81
1984 2, 14, 104, 111, 134, 143, 147
1985 56, 65, 74
1986 154, 166
1987 23, 41, 61SBS, 106SBS, 132, 153
1988 25, 58, 97, 133
1989 51
1990 4, 8, 18, 28, 103NAC
1991 152, 187SBS
1992 5, 2663, 64, 70, 84, 99, 135, 361, 367
1993 190SBS, 300SBS, 302SBS
1994 22, 28, 93, 136, 241/331, 243NAC, 246, 249, 250, 251, 252, 253, 254, 255, 257, 410WNAC
1995 139SBS, 382, 385
1996 98, 240NAC, 242NAC, 333NAC, 334NAC, 335
1997 62, 157, 307
1998 21, 31, 69, 182, 192, 193, 222
1999 35NAC, 72, 80, 86, 87, 88, 78NAC, 188SBS, 285, 291NAC, 359, 864, 865/85
2000 82, 186NAC, 199, 321, 322, 326, 327, 328, 502SBS
2001 107, 179, 501, 511, 512
2002 76, 161, 168
2003 9, 17, 55, 60, 89, 119SBST, 174
2004 91
8 Oct 2005 19
24 May 2007 502
26 Jun 2007 59
13 Jul 2007 13
3 Sep 2007 242AC, 243WAC
10 Sep 2007 10e
7 Jan 2008 5
30 Jan 2008 186AC
18 Feb 2008 225G, 225W
24 Mar 2008 185
20 May 2008 78AC
26 May 2008 37
4 Aug 2008 151
11 Aug 2008 6
1 Sep 2008 58
15 Mar 2009 241
10 Aug 2009 79
26 Oct 2009 89e
13 Sep 2010 240AC
28 Feb 2011 95
7 Mar 2011 181
15 Jun 2011 163
14 Jul 2011 291AC
26 Sep 2011 183
17 Oct 2011 139SBST
28 Nov 2011 45
29 Nov 2011 54
3 Jan 2012 43
7 Jan 2012 52, 334AC
10 Jan 2012 96
28 May 2012 109
25 Jun 2012 90
21 Oct 2012 119BSEP
22 Nov 2012 94
16 Dec 2012 50
17 Dec 2012 513
27 May 2013 243GAC
19 Jun 2013 293
26 Aug 2013 125
2 Sep 2013 101
9 Sep 2013 410WAC
30 Sep 2013 130
14 Dec 2013 49
18 May 2014 143M
23 Jun 2014 20
13 Jul 2014 972
18 Aug 2014 106SMRT, 190SMRT, 850E, 966, 969
25 Aug 2014 518
15 Sep 2014 188SMRT, 700, 951E, 963
1 Oct 2014 169SMRT
16 Nov 2014 43M
17 Nov 2014 61SMRT, 176, 965
23 Nov 2014 201
14 Dec 2014 41
12 Jan 2015 187SMRT, 964
15 Feb 2015 67
16 Feb 2015 960
9 Mar 2015 506
6 Apr 2015 145
25 Apr 2015 983
26 Apr 2015 857
1 May 2015 66
18 May 2015 856
2 Jun 2015 39
15 Jun 2015 961
22 Jun 2015 85
13 Jul 2015 985
14 Jul 2015 172
11 Aug 2015 35BSEP, 868/868E
16 Aug 2015 854
17 Aug 2015 4
7 Sep 2015 3
20 Sep 2015 102
5 Oct 2015 975
12 Oct 2015 981
26 Oct 2015 189
21 Nov 2015 258
28 Nov 2015 256
12 Dec 2015 253
20 Dec 2015 47, 117, 118
28 Dec 2015 979
12 Jan 2016 180
20 Jan 2016 103BSEP
20 Mar 2016 134
12 Jun 2016 46
4 Sep 2016 83
7 Sep 2016 982E
8 Sep 2016 971E
18 Sep 2016 851
28 Nov 2016 48
18 Dec 2016 127, 129
12 Jan 2017 860
13 Apr 2017 653
18 Jun 2017 247, 248
16 Jul 2017 806
30 Jul 2017 123
10 Sep 2017 962
28 Sep 2017 663
1 Oct 2017 979M
15 Oct 2017 800, 804, 807, 812
14 Nov 2017 883
9 Dec 2017 71
8 Jan 2018 811
28 Jan 2018 12e, 147e
26 Mar 2018 167
9 Apr 2018 665
10 Apr 2018 184, 900
22 Apr 2018 980
23 Apr 2018 901, 903, 922
27 May 2018 851e
10 Jun 2018 920
9 Jul 2018 941, 974, 990
10 Aug 2018 655
12 Aug 2018 171
1 Oct 2018 991
28 Oct 2018 960e
18 Nov 2018 121
10 Dec 2018 282
16 Dec 2018 300SMRT, 302SMRT, 912B, 913
17 Dec 2018 301, 911
23 Dec 2018 859
2 Jan 2019 660, 661
15 Feb 2019 333AC
24 Feb 2019 855
25 Feb 2019 178SMRT, 324
23 Apr 2019 912A
16 Jun 2019 400
1 Jul 2019 68
18 Nov 2019 382W
6 Jan 2020 652
13 Jan 2020 671, 672
9 Mar 2020 16/16M
30 Mar 2020 670

Deployment of Double-Deck Buses (Existing Services only)

Only permanent deployments of double-deck buses on operational bus services are listed in the table below.

Service Deployment Year/ Date Deployment Type Remarks
2 Full Day
3 7 Sep 2015 Full Day
4 17 Aug 2015 Full Day
5 7 Jan 2008 Full Day
6 11 Aug 2008 Day Weekdays & Saturdays only
7 Full Day
8 Full Day
9 Full Day
10 Full Day
10e 20 Sep 2007 Peak Hour Weekdays only
12 Full Day
12e 28 Jan 2018 (Day 1) Full Day
13 13 Jul 2007 Full Day
14 Full Day
16 9 Mar 2020 Full Day
16M 9 Mar 2020 Day Weekdays & Saturdays only
17 Full Day
19 8 Oct 2005 Day
20 23 Jun 2014 Full Day Weekdays only
21 Full Day
22 Full Day
23 Full Day
25 Full Day
28 Full Day
30 Full Day
31 Full Day
35 11 Aug 2015 Full Day Weekdays & Saturdays only
35M 11 Aug 2015 Full Day Uses buses from Service 35
37 26 May 2008 Day
39 2 Jun 2015 Full Day
41 14 Dec 2014 (Day 1) Full Day
43 3 Jan 2012 Full Day
43M 16 Nov 2014 (Day 1) Full Day
45 28 Nov 2011 Full Day
46 12 Jun 2016 (Day 1) Full Day
47 20 Dec 2015 (Day 1) Full Day
48 28 Nov 2016 Full Day
49 14 Dec 2013 (Day 1) Full Day
50 16 Dec 2012 (Day 1) Full Day
51 Full Day
52 7 Jan 2012 Full Day
54 29 Nov 2011 Full Day
55 Full Day
56 Full Day
58 1 Sep 2008 Full Day
59 26 Jun 2007 Full Day
60 Full Day
61 17 Nov 2014 Full Day Weekdays only
62 Full Day
64 Full Day
65 Full Day
66 1 May 2015 Full Day
67 15 Feb 2015 Full Day
68 1 Jul 2019 Full Day
69 Full Day
70 Day Weekdays & Saturdays only
70M Off Peak/Full Day Uses buses from Service 70
71 9 Dec 2017 (Day 1) Full Day
72 Full Day
74 Full Day
76 Full Day
78 20 May 2008 Full Day
79 10 Aug 2009 Full Day
80 Full Day
81 Full Day
83 4 Sep 2016 Full Day
85 22 Jun 2015 Full Day
86 Full Day
87 Full Day
88 Full Day
89 Full Day
89e 26 Oct 2009 Peak Hour Weekdays only
90 25 Jun 2012 Full Day
91 Peak Hour crossover Weekdays only, uses buses from Service 74
94 22 Nov 2012 Day Weekdays & Saturdays only
95 28 Feb 2011 Full Day
96 10 Jan 2012 Full Day
97 Full Day
98 Full Day
98M Full Day Uses buses from Service 98
99 Full Day
101 2 Sep 2013 Full Day
102 20 Sep 2015 (Day 1) Full Day
103 20 Jan 2016 Full Day
106 18 Aug 2014 Full Day
107 Day Weekdays & Saturdays only
107M Off Peak/Full Day Uses buses from Service 107
109 28 May 2012 Full Day
111 Full Day
117 20 Dec 2015 (Day 1) Full Day
118 20 Dec 2015 (Day 1) Full Day
119 21 Oct 2012 Full Day
121 18 Nov 2018 Full Day
123 30 Jul 2017 Full Day
125 26 Aug 2013 Full Day
127 18 Dec 2016 (Day 1) Full Day
129 18 Dec 2016 (Day 1) Full Day
130 30 Sep 2013 Full Day
132 Full Day
133 Full Day
134 20 Mar 2016 (Day 1) Full Day
139 17 Oct 2011 Full Day
143 Full Day
143M 18 May 2014 (Day 1) Full Day
145 6 Apr 2015 Full Day
147 Full Day
151 4 Aug 2008 Full Day
153 Full Day
154 Full Day
157 Full Day
161 Full Day
163 15 Jun 2011 Full Day
165 Full Day
166 Full Day
167 26 Mar 2018 Peak Hour crossover / Full Day Uses buses from Service 883 on weekdays; deployed throughout the day on weekends/PHs
168 Full Day
169 1 Oct 2014 Full Day
171 12 Aug 2018 Full Day Weekends/PHs only
172 14 Jul 2015 Full Day
174 Full Day
176 17 Nov 2014 Full Day Weekdays only
178 25 Feb 2019 Full Day Weekdays only
179 Full Day
180 12 Jan 2016 Full Day
181 7 Mar 2011 Full Day
181M 21 Mar 2016 (Day 1) Peak Hour Weekdays only, uses buses from Service 181
182 Full Day
182M Full Day Uses buses from Service 182
183 26 Sep 2011 Full Day
184 10 Apr 2018 Full Day
185 24 Mar 2008 Full Day
186 30 Jan 2008 Full Day
187 12 Jan 2015 Full Day
188 15 Sep 2014 Full Day
188e Peak Hour Weekdays only, uses buses from Service 188
189 26 Oct 2015 Full Day
190 18 Aug 2014 Full Day
192 Full Day
193 Full Day
196 Full Day
197 Full Day
198 Full Day
199 Full Day
201 23 Nov 2014 (Day 1) Full Day
222 Full Day
225G 18 Feb 2008 Full Day
225W 18 Feb 2008 Full Day
240 13 Sep 2010 Full Day
241 15 Mar 2009 (Day 1) Full Day
242 3 Sep 2007 Full Day
243G 27 May 2013 Full Day
243W 3 Sep 2007 Full Day
246 Full Day
247 18 Jun 2017 (Day 1) Full Day
248 18 Jun 2017 (Day 1) Full Day
249 Full Day
251 Full Day
252 Full Day
253 12 Dec 2015 (Day 1) Full Day
254 Full Day
255 Full Day
257 Full Day
258 21 Nov 2015 (Day 1) Full Day
285 Full Day
291 14 Jul 2011 Full Day
293 19 Jun 2013 Full Day
300 16 Dec 2018 Full Day
301 17 Dec 2018 Full Day Weekdays only
302 16 Dec 2018 Full Day
324 25 Feb 2019 Full Day
333 15 Feb 2019 Full Day Uses buses from Service 334
334 7 Jan 2012 Full Day
382W 18 Nov 2019 Peak Hour crossover Weekdays only
400 16 Jun 2019 Full Day Weekends/PHs only
410W 9 Sep 2013 Full Day
502 24 May 2007 Full Day
506 9 Mar 2015 Full Day
513 17 Dec 2012 (Day 1) Peak Hour Weekdays only
518 25 Aug 2014 Full Day
652 6 Jan 2020 Peak Hour Weekdays only
653 13 Apr 2017 Peak Hour Weekdays only
655 10 Aug 2018 Peak Hour Weekdays only
660 2 Jan 2019 Peak Hour Weekdays only
661 2 Jan 2019 Peak Hour Weekdays only
663 28 Sep 2017 Peak Hour Weekdays only
665 9 Apr 2018 Peak Hour Weekdays only
670 30 Mar 2020 Peak Hour Weekdays only
671 13 Jan 2020 Peak Hour Weekdays only
672 13 Jan 2020 Peak Hour Weekdays only
800 15 Oct 2017 Full Day
804 15 Oct 2017 Full Day
806 16 Jul 2017 Full Day
807 15 Oct 2017 (Day 1) Full Day
811 8 Jan 2018 Full Day
812 15 Oct 2017 Full Day
850E 18 Aug 2014 Peak Hour Weekdays only, uses buses from Service 70
851 18 Sep 2016 Full Day
851e 27 May 2018 (Day 1) Full Day
854 16 Aug 2015 Full Day
854e Peak Hour Weekdays only, uses buses from Service 854
855 24 Feb 2019 Full Day Sundays & PHs only
856 18 May 2015 Full Day
857 26 Apr 2015 Full Day
859 23 Dec 2018 Full Day Weekends/PHs only
868E 11 Aug 2015 Peak Hour Weekdays only
883 14 Nov 2017 Full Day
900 10 Apr 2018 Full Day
900A 10 Apr 2018 Peak Hour/Afternoons Weekdays only, uses buses from Service 900
901 23 Apr 2018 Full Day
901M 23 Jun 2019 (Day 1) Full Day
903 23 Apr 2018 Full Day
903M 23 Apr 2018 Peak Hour Weekdays only, uses buses from Service 903
911 17 Dec 2018 Full Day
912A 23 Apr 2019 Full Day Weekdays only
912B 16 Dec 2018 Full Day
912M 16 Dec 2018 Peak Hour Weekdays only, uses buses from Service 912B
913 16 Dec 2018 Full Day
922 23 Apr 2018 Full Day
941 9 Jul 2018 Peak Hour crossover Uses buses from Service 189 on weekdays
951E 15 Sep 2014 Peak Hour Weekdays only
960 16 Feb 2015 Full Day
960e 28 Oct 2018 (Day 1) Full Day
961 15 Jun 2015 Full Day Weekdays & Saturdays only
961M 15 Jun 2015 Full Day Sundays & PHs only, uses buses from Service 961
962 10 Sep 2017 Full Day
963 15 Sep 2014 Full Day
963e 5 Oct 2014 Peak Hour Weekdays only, uses buses from Service 963
964 12 Jan 2015 Full Day Weekdays & Saturdays only
965 17 Nov 2014 Full Day
966 18 Aug 2014 Full Day
969 18 Aug 2014 Full Day
971E 8 Sep 2016 Peak Hour Weekdays only
972 13 Jul 2014 Full Day
974 9 Jul 2018 Full Day
975 5 Oct 2015 Peak Hour crossover / Full Day Uses buses from Service 972 on weekdays; deployed throughout the day on Sundays & PHs
979 28 Dec 2015 Full Day
980 22 Apr 2018 Full Day Sundays & PHs only
981 12 Oct 2015 Peak Hour Weekdays & Saturdays only
982E 7 Sep 2016 Peak Hour Weekdays only
983 25 Apr 2015 (Day 1) Full Day
985 13 Jul 2015 Full Day
990 9 Jul 2018 Peak Hour crossover Uses buses from Service 106 on weekdays
991 1 Oct 2018 Full Day 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 assessment 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 in Yishun only.

The following tables provide an overall timeline of the deployment of articulated buses on bus services in Singapore:

Deployment of Articulated Buses (in chronological order)

Only permanent deployments (former/current) of articulated buses are listed in the table below.

Year / Date of Deployment Bus Service(s)
1996 18SBS960
18 Jul 1997 82, 851
8 Sep 1997 913
1997 176180, 184, 520, 812
1998 195, 290, 811
1999 67190, 903, 911, 912
2000 61, 106, 169, 187188, 300, 302, 800, 804, 806, 854856859, 900, 901
2001 172700962964, 969
2002 18SBST, 963
2006 902
2011 971E
25 May 2015 860
29 Nov 2015 858
21 Nov 2016 301
2017 807
2019 951E

Deployment of Articulated Buses (Existing Services only)

Only permanent deployments of articulated buses on operational bus services are listed in the table below.

Service Deployment Year/Date Deployment Type Remarks
169 Full Day
184 Full Day
300 Full Day
301 21 Nov 2016 Full Day Weekdays only
302 Full Day
800 Full Day
804 Full Day
806 Full Day
807 Full Day
811 Full Day
812 Full Day Occasional deployments only
858 29 Nov 2015 Full Day
900 Full Day Occasional deployments only
900A Peak Hour/Afternoons Weekdays only, uses buses from Service 900
901 Full Day Occasional deployments only
901M Full Day Occasional deployments only
903 Full Day Weekends/PHs only
903M Peak Hour Weekdays only, uses buses from Service 903
911 Full Day Occasional deployments only
912 Full Day
912A Full Day Occasional deployments only
912B 10 Sep 2017 (Day 1) Full Day
912M Peak Hour Weekdays only, uses buses from Service 912B
913 Full Day Occasional deployments only, with permanent peak hour crossover from Service 951E
951E Peak Hour Weekdays only
969 Full Day

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