SBS Transit Bus Service 100A is a Short-Trip Service variant of Bus Service 100.
The route operates from Serangoon Bus Interchange and ends at Aljunied Road (Aljunied Stn), operating on Weekdays morning and evening peak hours.
100A
S'Goon Int
→ Aljunied Stn
→ Aljunied Stn
Route Overview | ||||||||||||
Route ![]() |
Serangoon Bus Interchange → Aljunied Road (Aljunied Stn) | |||||||||||
Passes Through | Upp Serangoon Rd, Upp Aljunied Rd | |||||||||||
Route Length | 4.8 km | |||||||||||
Travelling Time | 22 mins | |||||||||||
Operator Information | ||||||||||||
BCM Route Package | Clementi Bus Package | |||||||||||
Current Operator | SBS Transit Ltd | |||||||||||
Current Depot | Bukit Batok Bus Depot (BBDEP) Hougang Bus Depot (HGDEP) |
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Current Fleet | 12-metre Single Deck Bus – Mercedes-Benz Citaro – Scania K230UB |
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Operating Hours | ||||||||||||
Departure Times from Serangoon |
Weekdays, except Public Holidays | |||||||||||
06:30 – 09:09 & 17:41 – 19:42 | ||||||||||||
Fare Information |
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Fare | Charges regular distance fares |
Short Trip Service 100A is a trunk service operating from Serangoon Bus Interchange and ends at Aljunied Road (Aljunied Stn).
As a Short-Trip Service, the route operates on Weekdays, during both the morning and evening hours, and supplements the high demand for Service 100 from Serangoon and Aljunied Road to Aljunied MRT Station.
Departure Timings
- From Serangoon Interchange:
Weekdays, except Public Holidays: 06:30, 07:14, 07:52, 08:10, 09:09, 17:41, 18:11, 18:30, 18:53, 19:08, 19:23 & 19:42
MRT Stations Served:
Gallery:
Operator History:
- 2000 – 2001: Singapore Bus Services Ltd
- 2001 – Present: SBS Transit Ltd
The Bus Service Operating License (BSOL) for this route will be renewed in 2025 under the Clementi Bus Package.
Route History:
- 2000: Introduced as a short-trip service from Serangoon Int to Aljunied Rd (Aljunied Stn) during morning peak hours on weekdays
- 2002: Serves new bus stop after Sunshine Lodge along Upp Serangoon Rd
- 2011 (03 Sep): Amended to Serangoon Integrated Transport Hub
- 2017 (12 Mar): Amended to ply Upp Serangoon Rd and the diverted Upp Aljunied Rd
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