Short-Trip Services
Short-Trip services, previously referred to as Shortworking Trip Services (SWTs), are short haul supplementary trips which ply segments of their parent route rather than the full route of their parent service. Due to the lengthy nature of most bus routes, Short-Trip services are needed to cater to specialised sectors, rather than improving bus frequencies throughout the route. This helps to better allocate resources to where they are needed.
Most Short-Trip services cater to sectors of bus routes encountering high demand, for example, between transport nodes and high-activity areas (e.g. between MRT stations and housing estates , industrial areas or educational institutions). These Short-Trip services operate during the weekday peak hours. Other Short-Trip services operate late at night, after the last bus of their parent service has departed. These services usually cater to residential sectors of long trunk routes. Finally, there are Short-Trip services that only operate on weekends and special occasions, catering to unique sectors of route encountering high demand.
Short-Trip services can be identified by adding an alphabetical suffix at the end of its parent service. The letters A and B are the most common, while other suffixes (like W) are less common. The suffix M is usually reserved for Route variants and not for Short-Trip services. However, not all A and B suffixed routes are Short-Trip services; exceptions include 700A and 859A/859B.
For pictures, visit our (incomplete) Short-Trip Services Gallery.
Currently, Short-Trip services can be divided into five broad categories based on their operating hours:
- Weekdays AM Peak Short-Trip services
- Weekdays PM Peak Short-Trip services
- Weekends, Public Holidays and Special Short-Trip services
- “Last bus” Short-Trip services
- Daily “Full Day” Short-Trip services
This list is not exhaustive and some Short-Trip services can fall into multiple categories. For detailed operating hours, refer to the bus service articles of their parent services.
SBS Transit Short-Trip services:
| Service | Route | Category |
| 7A | Bedok Interchange → Orchard Boulevard (Bef Orchard Stn Exit B) | 5 |
| 7B | Clementi Interchange → Orchard Road (Dhoby Ghaut Stn) | 5 |
| 9A | Bedok Interchange → Loyang Avenue (Blk 149A) | 2 |
| 13A | Ang Mo Kio Avenue 6 (Aft Blk 304) → Bishan Road (Bishan Stn) | 1 |
| 14A | Bedok Interchange → Grange Road (Natl Youth Council) | 3 |
| 21A | Geylang Road (Bef Lor 18 Geylang) → Kitchener Road (Bef Tai Hoe Hotel) | 3 |
| 27A | Sengkang East Avenue (Blk 203B) → Tampines Avenue 4 (Opp Century Square) | 1 |
| 29A | Tampines Interchange → Tampines Avenue 7 (Blk 497D) | 2 |
| 31A | Tampines Interchange → New Upper Changi Road (Tanah Merah Stn) | 1 |
| 33A | Kent Ridge Terminal → Tiong Bahru Road (Blk 1) | 2 |
| 33B | Bedok Interchange → Joo Chiat Place (After Tembeling Road) | 3 |
| 45A | Lorong Ah Soo (Opp Blk 115) → Upper Serangoon Road (Serangoon Stn) | 1 |
| 51A | Jurong East Interchange → Pandan Gardens (Blk 407) | 4 |
| 53A | Pasir Ris Dr 1 (Blk 738) → Changi Airport PTB 2 | 1 |
| 55B | Bishan Interchange → Ang Mo Kio Avenue 10 (Blk 443) | 2 |
| 58A | Upp S’goon Rd (S’goon Stn) → Tampines Ave 10 (Bef TPE) | 1, 2 |
| 58B | Pasir Ris Interchange → Upp Paya Lebar Rd (Aft Tai Seng Stn) | 1, 2 |
| 60A | Eunos Interchange → Bedok Reservoir Road (Blk 608) | 2 |
| 70A | Yio Chu Kang Interchange → Temasek Ave (Opp The Ritz-Carlton) | 4 |
| 70B | Yio Chu Kang Road (Opp Serenity Pk) → Serangoon Central (Serangoon Stn) | 1 |
| 72A | Yio Chu Kang Interchange → Hougang Central (opp Hougang Ctrl Int) | 1 |
| 72B | Yio Chu Kang Interchange → Ang Mo Kio Avenue 5 (ITE College Central) | 1 |
| 73A | Ang Mo Kio Interchange → Toa Payoh Bus Interchange | 4 |
| 80A | Sengkang Interchange → Aljunied Road (Aljunied Stn) | 1 |
| 88A | Punggol Road (Blk 190C) → Ang Mo Kio Avenue 3 (Opp Ang Mo Kio Stn) | 1 |
| 88B | Ang Mo Kio Avenue 6 (Blk 207) → Ang Mo Kio Avenue 5 (Bef Yio Chu Kang Rd) | 1 |
| 89A | Pasir Ris Dr 1 (Blk 738) → Airport Cargo Road (Airfreight Ter Bldg) | 1 |
| 90A | Toa Payoh Interchange → Airport Road (Paya Lebar Air Base) | 1 |
| 92A | Ghim Moh Terminal → Ghim Moh Road (Blk 13) | 2 |
| 92B | Ghim Moh Terminal → Science Park Drive (Opp The Rutherford) | 1, 2, 3 |
| 94A | Eunos Interchange → Airport Road (Bef RSAF Roundabout) | 1, 3 |
| 95B | Kent Ridge Terminal → North Buona Vista Road (Buona Vista Stn) | 2 |
| 100A | Serangoon Interchange → Aljunied Road (Aljunied Stn) | 1, 2 |
| 105B | Jurong East Interchange → Commonwealth Avenue West (Clementi Stn) | 1 |
| 109A | Serangoon Interchange → Hougang Avenue 4 (Blk 913) | 2 |
| 112A | Hougang Central Interchange → Upper Serangoon Road (Kovan Station) | 4 |
| 113A | Upp Serangoon Rd (Kovan Stn Exit C) → Upp Serangoon Rd (Kovan Stn Exit B), via Hougang Street 11 & Upp Paya Lebar Rd | 1, 2 |
| 125A | Aljunied Road (Opp Aljunied Stn) → Macpherson Road (Bef Siemens Ctr) | 1 |
| 127A | Tampines Central Int → Tampines Ave 9 (Blk 742A) | 4 |
| 130A | Ang Mo Kio Interchange → Sin Ming Road (Blk 25) | 3 |
| 131A | St. Michael’s Terminal → Shenton Way (Opp AXA Twr) | 1 |
| 135A | Ang Mo Kio Interchange → Marine Parade Road (Victoria Sch) | 4 |
| 138A | Ang Mo Kio Interchange → Mandai Lake Road (Singapore Zoo) | 3 |
| 138B | Ang Mo Kio Int → Ang Mo Kio Ave 5 (Opp Blk 604) | 2 |
| 145A | Tiong Bahru Road (Redhill Stn) → Henderson Road (Blk 1) | 1 |
| 147A | Hougang Central Interchange → New Bridge Road (Opp Pearl’s Ctr) | 1 |
| 154A | Yung Ho Road (Blk 151) → Boon Lay Way (Lakeside Stn) | 1 |
| 154B | Commonwealth Avenue West (Clementi Stn) → Clementi Road (Ngee Ann Poly) | 1 |
| 158A | Aljunied Road (Aljunied Stn) → Aljunied Road (Opp Aljunied Stn), via Tanjong Rhu | 1, 2 |
| 159A | Sengkang Interchange → Ang Mo Kio Ave 8 (Opp Blk 710) | 1 |
| 159B | Ang Mo Kio Ave 8 (Jubilee) → Ang Mo Kio Ave 5 (ITE College Central) | 1 |
| 170A | Queen Street Terminal → Woodlands Centre Rd (Woodlands Train Checkpoint) | 5 |
| 179A | AM Peak: Boon Lay Interchange → Nanyang Drive (Hall 4) PM Peak: Lien Ying Chow Drive (Hall 1) → Boon Lay Interchange Express along Jurong West St 63 & Pioneer Road North in both directions |
1, 2 |
| 195A | Marina Centre Terminal → Tiong Bahru Road (Tiong Bahru Plaza), via Commonwealth Drive | 1, 2, 3 |
| 195B | Marina Centre Terminal → Commonwealth Drive (Opp Blk 115B) | |
| 196A | Bedok Interchange → Shenton Way (Opp MAS Bldg) | 1 |
| 198A | Boon Lay Interchange → Jurong East Avenue 1 (Opp Parc Oasis) | 2 |
| 222A | Bedok Interchange → New Upper Changi Road (Bedok Stn Exit A) | 1 |
| 222B | New Upp Changi Rd (Bedok Stn Exit A) → New Upper Changi Road (Bedok Stn Exit B) via Chai Chee Drive | 1, 2 |
| 240A | Corporation Drive (Blk 65) → Boon Lay Way (Lakeside Stn) | 1 |
| 241A | Jurong West Street 91 (Blk 962) → Jurong West Street 63 (Blk 649A) | 1 |
| 268A | Ang Mo Kio Depot → Ang Mo Kio Avenue 5 (Techplace 2) | 1 |
| 268B | Ang Mo Kio Ave 9 (Opp AMK Police Div HQ) → Ang Mo Kio Avenue 3 (Ang Mo Kio Stn) | 1, 2 |
| 268C | Ang Mo Kio Avenue 3 (Opp Ang Mo Kio Stn) → Ang Mo Kio Ave 9 (AMK Police Div HQ) | 1, 2 |
| 269A | Ang Mo Kio Interchange → Ang Mo Kio Street 61 (Mkt/FC) | 2 |
| 502A | Soon Lee Bus Park → Central Boulevard (Downtown Stn) Roads skipped: Jurong West/East Ave 1, Toh Guan Road & Boon Lay Way. |
1 |
Service 502A is better classified as a route variants rather than a Short-Trip service, but is mentioned here since they appear under Short-Trip services on SBS Transit’s website.
SMRT Buses Short-Trip services:
| Service | Route | Category |
| 67A | Choa Chu Kang Interchange → Dunearn Road (Opp Coronation Plaza) | 1 |
| 67W | Route A: Choa Chu Kang Interchange → Bukit Timah Road (Little India Stn) Route B: Tampines Interchange → Bukit Timah Road (Little India Stn) |
3 |
| 75A | Bukit Panjang Road (Blk 604) → Clementi Road (Opp SIM HQ) | 1 |
| 169A | Woodlands Temporary Interchange → Yishun Avenue 2 (Opp Yishun Stn) | 1 |
| 178A | Woodlands Temporary Interchange → Woodlands Road (Kranji Stn) | 1 |
| 180A | Boon Lay Interchange → Bukit Panjang Road (Blk 183) | 2 |
| 190A | Choa Chu Kang Interchange → Orchard Road (Dhoby Ghaut MRT) | 1 |
| 302A | Choa Chu Kang Drive (Yew Tee Stn) → Choa Chu Kang Drive (opp Yew Tee Stn) | 1, 2 |
| 307A | Choa Chu Kang Interchange → Choa Chu Kang Avenue 4 (Opp Choa Chu Kang Stn), via Choa Chu Kang Street 62 | 5 |
| 807A | Yishun Temporary Interchange → Yishun Ring Rd (Opp Blk 798) | 1 |
| 811A | Yishun Temporary Interchange → Yishun Avenue 5 (Blk 145) | 2 |
| 856A | Woodlands Temporary Interchange → Woodlands Centre Rd (Woodlands Train Checkpoint) | 3 |
| 857A | Yishun Temporary Interchange → Yio Chu Kang Road (Opp Sunrise Gdns) | 1 |
| 858A | Woodlands Temporary Interchange → Yishun Avenue 2 (Opp Yishun Stn) | 4 |
| 858B | Jalan Kayu (Bef Seletar Camp G) → Jalan Kayu (Aft Seletar Camp G) | 1 |
| 882A | Sembawang Interchange → Montreal Link (Blk 592A) | 2 |
| 883A | Sembawang Interchange → Canberra Way (Blk 129A) | 4 |
| 912A | Woodlands Temporary Interchange ↺ Woodlands Ave 7 | 1, 2, 3, 4 |
| 912B | Woodlands Temporary Interchange ↺ Woodlands Ctr Rd | 1, 2, 3, 4 |
| 962A | Woodlands Temporary Interchange → Sembawang Drive (Opp Blk 484A CP) | 1 |
| 962B | Sembawang Drive (Opp Sun Plaza) → Sembawang Drive (Sun Plaza), via Admiralty St | 1, 2 |
| 962C | Woodlands Ave 5 (Blk 618) → Woodlands Ave 6 (Blk 680) |
1 |
| 965A | Woodlands Temporary Interchange → Yishun Avenue 2 (Opp Yishun Stn) | 1, 2 |
| 969A | Tampines Interchange → Yishun Avenue 2 (Yishun Stn) | 1, 2 |
| 972A | Bukit Panjang Interchange → Orchard Road (Dhoby Ghaut Stn) | 4 |
| 975A | Bukit Panjang Interchange → Lorong Rusuk (Aft Old Lim Chu Kang Rd) | 1, 2 |
| 975B | Choa Chu Kang Ave 4 (Opp Choa Chu Kang Stn) → Lim Chu Kang Rd (Opp Lim Chu Kang Lane 3) | 3 |
| 991A | Bukit Batok Interchange → Bukit Batok West Ave 3 (Princess E Pr Sch) | 4 |
This list does not include Intratown bus services that use the ‘E’ suffix to denote a terminating trip, e.g. 307E, 811E, 812E, 911E, 912E, 913E.
Tower Transit Short-Trip services:
| Service | Route | Category |
| 66A | Bedok Interchange → Bukit Timah Road (Little India Stn) | 3 |
| 66B | Jurong East Interchange → Serangoon Road (Tekka Ctr) | 3 |
| 78A | Jurong East Interchange → Tanjong Penjuru (ECS Freight Services) | 1 |
| 79A | Jurong East Interchange → Boon Lay Int | 4 |
| 96A | Clementi Interchange → Kent Ridge Crescent (NUS Raffles Hall) | 1 |
| 96B | Clementi Interchange → Commonwealth Avenue West (Clementi Station), via National University of Singapore | 2 |
| 98A | Boon Lay Way (Lakeside Stn) → Corporation Road (Corporation Pl) | 2 |
| 98B | Jurong West Ave 1 (Blk 490) → Jurong Pier Way (Jurong Island Checkpt) | 1 |
| 106A | Bukit Batok Interchange → Commonwealth Avenue West (Clementi MRT) | 1 |
| 173A | Bukit Batok Interchange → Bukit Batok East Avenue 4 (Blk 254) | 4 |
| 183B | Jurong East Interchange → Toh Tuck Avenue (Ulu Pandan R.I. Plant) | 1 |
| 189A | Bukit Batok Interchange → Bukit Batok Street 23 (Opp Midview Bldg) | 1, 4 |
Go-Ahead Short-Trip services:
| Service | Route | Category |
| 2A | Kg Bahru Terminal → New Upp Changi Rd (Tanah Merah Stn) | 1, 2 |
| 3A | Tampines Interchange → Pasir Ris Drive 12 (Blk 747A) | 2, 4 |
| 3B | Pasir Ris Drive 1 (Blk 738) → Pasir Ris Interchange | 1 |
| 15A | Pasir Ris Interchange → Jalan Eunos (Opp Eunos Stn) | 1 |
| 17A | Bedok North Ave 4 (Opp SBST Bedok Bus Pk) → Bedok North Ave 4 (SBST Bedok Bus Pk), via Bedok Int | 1, 2, 3 |
| 34A | Punggol Interchange → Tampines Avenue 5 (Opp Tampines Stadium) | 1 |
| 36A | Changi Airport PTB2 → Tomlinson Road (The Regent S’pore) | 4 |
| 36B | Marine Parade Road (Lagoon View) → Siglap Rd (Opp Mandarin Gardens), via Tomlinson Road | 1, 2 |
| 62A | Punggol Interchange → Aljunied Road (Aljunied Stn) | 2 |
| 118A | Tampines Expressway (Aft Punggol Rd) → Simei Ave (ITE Coll East Adm Blk) | 1 |
| 118B | Simei Ave (Opp ITE Coll East Adm Blk) → Tampines Expressway (Bef Punggol Rd) | 2 |
| 518A | Pasir Ris Interchange → Bayfront Avenue (Opp Marina Bay Sands MICE) Roads skipped: Tampines Ave 7/2/1 & Bedok North Road |
1 |
This list does not include Feeder bus services that use the ‘T’ suffix to denote a terminating trip, e.g. 358T, 359T.
In the past, prior to the Bus Contracting Model, bus operators (SBS Transit and SMRT) withdraw Short-Trip services when they are no longer needed. Usually, there are no press releases and the service will cease to operate. Information regarding the Short-Trip service will be removed from company websites and from en route bus stops.
On rare occasions, ‘withdrawn’ Short-Trip services (which actually slip into oblivion) may make a comeback. Such was the case of SBS Service 170A which disappeared in the early 2000s, only to reappear in 2014.
List of withdrawn Short-Trip services (not exhaustive):
- 2A (1st Gen): Changi Village Terminal → New Upper Changi Road (Bedok Stn) – 2
- 14B: Bedok Interchange → Upper East Coast Road (Fairview Ct??) – 1
- 13A (1stGen): Yio Chu Kang Terminal → Sims Avenue (Eunos Stn) – ?
- 15B: Jalan Eunos (Eunos Stn) → Kaki Bukit Avenue 1 (Opp Blk 150) – ?
- 16A: Bukit Merah Interchange → Siglap Rd (Opp Mandarin Gdns) – 4
- 16B: Bukit Merah Interchange → Bras Basah Road (Raffles Hotel) – 1
- 23A: Tampines Interchange → Tampines Avenue 1 (Temasek Poly West G) – 1
- 24A: Ang Mo Kio Interchange → New Upper Changi Rd (Tanah Merah MRT) – ???
- 25A: Ang Mo Kio Interchange → Hougang Avenue 3 (aft Kim Chuan Rd) – 1
- 30A: Bedok Interchange → Fort Road (Opp Fort Gdns) – 1
- 30B: Boon Lay Interchange → Telok Blangah Road (Opp Vivocity) – 1
- 43A: Buangkok Green (Blk 565) → Serangoon Central (Serangoon Stn) – 1
- 53A (1st Gen): Hougang Avenue 1 (Opp Blk 232) → Serangoon Central (Blk 261) – 1
- 53B: Serangoon Central (Blk 206) → Hougang Ave 1 (Blk 232) – 2
- 54A: Bishan Street 22 (Blk 246) → Bishan Road (Bishan Stn) – 1
- 55A: Bishan Interchange → Marine Parade Road (Victoria Sch) – 4
- 56A: Bishan Interchange → Beach Road (Raffles Hotel) – 3
- 67C: Tampines Interchange → Geylang Road (Blk 14 Mkt/FC) – ?
- 69A: Bedok Interchange → Tampines Avenue 1 (Temasek Poly) – 1
- 74A: Hougang Central Interchange → Clementi Road (Opp Ngee Ann Poly) – 1
- 76A: Yio Chu Kang Interchange → Marine Terrace (Opp CHIJ Katong Convent) – 4
- 77A: Bukit Batok Interchange → Toh Tuck Road (Opp Canadian Intl Sch) or Jurong Inst – 1
- 82A: Serangoon Interchange → Punggol Road End – 4
- 83A: Punggol Interchange → Sengkang Interchange – 4
- 85A: Sengkang Interchange → Upper Serangoon Road (Blk 205)
- 85B: Sengkang Interchange → Jalan Besar (Sim Lim Twr)
- 86A: Sengkang Interchange → Jalan Kayu (Opp The Hiding Pl) – 1
- 91A: Buona Vista Terminal → Ayer Rajah Crescent (Ayer Rajah Bus Pk) – 1
- 95A: North Buona Vista Road (Opp Buona Vista Stn) → Lower Kent Ridge Road (NUH) – 1
- 95C: North Buona Vista Road (Opp Buona Vista Stn) → Lower Kent Ridge Road (Opp Staff Club) – 1
- 95D: Kent Ridge Terminal → Holland Road (Holland Village) – 2, 4
- 97A: Jurong East Interchange → Raffles Avenue (The Esplanade) – 1, 4
- 97B: Jurong East Interchange → Telok Blangah Road (Opp Vivocity) – 1
- 98A: Jurong East Interchange ↺ Corporation Road – 1, 2, 4
- 100B: Ghim Moh Terminal → Telok Blangah Road (Opp Vivocity) – 1
- 103W: Serangoon Interchange ↺ West Camp Road
- 105A (?Gen): Serangoon Interchange → Whitley Rd (aft Tanglin CC) – 1
- 105A (?Gen): Serangoon Interchange → Lorong 2 Toa Payoh (Toa Payoh Stn) – 1
- 106A (1stGen): Bukit Batok Interchange → Commonwealth Avenue West (Opp SP Blk T1A) – 1
- 106A (2ndGen): Marina Boulevard (The Sail) → Central Boulevard (Aft Marina Stn Rd) via Bayfront Avenue – 3
- 107A: Serangoon Interchange → Shenton Way (Opp Temasek Twr) – 1
- 123A: Bt Purmei Road (Opp Blk 109) → Tiong Bahru Road (Tiong Bahru Plaza) – 1
- 123B: Tiong Bahru Road (Opp Tiong Bahru Plaza) → Bukit Purmei Avenue – 3
- 124A: St Michael’s Terminal → Telok Blangah Drive (Blk 50) – 4
- 131B: Serangoon Road → Norfolk Road – ?
- 133A: Ang Mo Kio Interchange → Raffles Avenue (The Esplanade) – 1, 4
- 139A: Toa Payoh Interchange → Kim Keat Road (Opp Jumbo Ind Bldg) – 2
- 143A: Jurong East Interchange → Teban Gardens Road (Bef Hasanah Mosque) – 4
- 147A (1stGen): Hougang Central Terminal → Serangoon Central (Blk 206) – 1
- 151A: Kent Ridge Terminal → Dunearn Road (Aft Kheam Hock Rd) – 2
- 153A: Hougang Central Interchange → Lorong 2 Toa Payoh (Toa Payoh Stn) – 1
- 154A (1stGen): Boon Lay Interchange → Clementi Road (Ngee Ann Poly) – 1
- 155A: Toa Payoh Interchange → Marine Parade Road (Victoria School) – 4
- 156A (1stGen): Serangoon Interchange → Bishan Road (Bishan Stn)
- 156A (2ndGen): Sengkang Interchange → Thomson Road (Opp Old Police Academy) – 1
- 158A (1stGen): Sims Ave (Aft Lor 1 Geylang) → Tanjong Rhu Road (Opp Dunman High Sch)
- 158B: Tanjong Rhu Road (Dunman High Sch) → Aljunied Road (Opp Aljunied Stn) – 2
- 162A: Yio Chu Kang Terminal – Sin Ming Ave (Ai Tong Sch) – 1
- 163A: Sengkang Interchange → Fernvale Lane (Blk 403A) – 3
- 170A: Queen Street Terminal → Woodlands Centre Road (Opp Blk 1A)
- 173A: Jln Anak Bukit → Clementi Int, Clementi Ave 3 (bef Upp Bt Timah) → Jln Jurong Kechil – 1
- 173K: Bukit Batok Interchange → Toh Tuck Avenue (Green Lodge Mans) [Ends at Canadian Int’l School]
- 177A: Bukit Batok Interchange → Jelebu Road (Bt Panjang Plaza) – 1, 2
- 183A: Commonwealth Avenue West (Clementi Stn) ↺ Science Park Road – 1
- 184A: Bukit Panjang Interchange → Clementi Road (Opp Ngee Ann Poly) – 1
- 187A: Boon Lay Interchange → Bukit Batok Central (Blk 628) – 1
- 188A: Choa Chu Kang Interchange → Choa Chu Kang Grove (ITE College West) – 1
- 200A: Buona Vista Terminal → Clementi Road (Kent Ridge Terminal) – 4
- 400A: Marina Street (Marina Bay Stn) → Marina Mall (Loop) – Ad-hoc
- 402A: ???
- 502B: Jurong West Ave 1 (Blk 538) ↔ Marina Center – 1, 2
- 518B: Tampines Avenue 7 (Blk 370) ↔ Marina Center – 1, 2
- 811A (1stGen): Yishun Interchange → ITE Yishun – 1
- 854A: Yishun Interchange → Yio Chu Kang Road (Opp Sunrise Villa) – 1
- 859A: Sembawang Interchange → Sembawang Vista (Opp Blk 315) – 4
- 927A: Choa Chu Kang Interchange → Mandai Road – 1
- 964A: Woodlands Regional Interchange → Woodlands Link (Opp Blk 22) – 1
- 985A: Choa Chu Kang Interchange → Jln Jurong Kechil – 1
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