Shuttle 37A is a Rail Replacement Service for the Circle Line (CCL), operating one-way from Serangoon to Paya Lebar, and skipping Bartley.
The service will operate on weekday morning peak hours from 5 January 2026 to 17 April 2026. During this period, CCL train services will be affected by tunnel maintenance works, which will take place daily from 17 January to 19 April 2026.
Although modified CCL train operations and tunnel maintenance works commence on Saturday, 17 January 2026, Shuttle 37B will begin operations earlier on Monday, 5 January 2026, to allow commuters to familiarise themselves with the shuttle bus arrangements.
→ Paya Lebar Stn Exit B
This Shuttle Bus Service serves the following MRT Stations:
- CC13NE12 Serangoon
- CC11 Tai Seng
- CC10DT26 MacPherson
- CC9EW8 Paya Lebar
Shuttle 37A does not serve Bartley MRT station.
| Route Overview | ||||||||||||
Route  |
Serangoon MRT → Paya Lebar MRT | |||||||||||
| Passes Through |
Tai Seng MRT & MacPherson MRT Stations | |||||||||||
| Operator Information | ||||||||||||
| Operators | TBC | |||||||||||
| Fleet | TBC | |||||||||||
| Operating Hours | ||||||||||||
| Departure Times from Serangoon |
Affected Weekdays (except Public Holidays) | |||||||||||
| 07:00 – 09:00 | ||||||||||||
| Operating Frequency | ||||||||||||
| Affected Weekdays | 3 – 5 mins | |||||||||||
| Fare Information |
||||||||||||
| Fare | Charges distance fares based on the distance between MRT Stations by rail | |||||||||||
Other Shuttle Bus Services
During the period of Reduced Circle Line Services for Tunnel Maintenance Works (Jan–Apr 2026), the following shuttle bus services are also offered on Weekdays (except Public Holidays):
- Shuttle 38: Paya Lebar ↔ Stadium
(2 ways; Morning & Evening Peak Hours) - Shuttle 37B: Tai Seng → Bishan
(1 way express; Evening Peak Hours) - Shuttle 37C: Tai Seng → Serangoon
(1 way express; Evening Peak Hours)
Shuttle bus services are offered from 5 January 2026 to 17 April 2026, both dates inclusive.
History of Activation
| Shuttle 37A Activation: | |
| January – April 2026 (LI) | Serangoon—Paya Lebar |
- EC: Early Closure | LO: Late Opening | EEC: Extended Early Closure | SC: Sunday Closure | LI: Longer Intervals
Bus Fares:
Charges regular distance fare based on the distance between MRT Stations by rail. Train, bus and hybrid concession passes are accepted, and distance fare rules apply.
History:
- 2025 (01 Dec): Route announced for Reduced Circle Line Services from January to April 2026 (Serangoon – Paya Lebar)
See Also:
External Links & References:
Back to Rail Replacement Services