Shuttle 37A: Serangoon—Paya Lebar Shuttle Bus Service

Shuttle 37A is a Rail Replacement Service for the Circle Line (CCL), plying one way from Serangoon to Paya Lebar, skipping Bartley.

The route will be activated to operate on Weekdays (except Public Holidays) during Morning Peak hours from 5 January 2026 to 17 April 2026. CCL train services are affected for Tunnel Maintenance Works daily from 17 January to 19 April 2026.

Although modified CCL train services & tunnel maintenance works commence on Saturday 17 January 2026, Shuttle 37A will commence operations 12 days earlier (on Monday 5 January 2026) for commuters to familiarise themselves with the shuttle services.

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 & 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 Reduced Circle Line Services for Tunnel Maintenance Works (Jan–Apr 2026), other shuttle bus services are also in operation on Weekdays (except Public Holidays).

These are:

• 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)

Service commences on 5 January 2026 for familarisation till 16 January 2026.
Thereafter, from 19 January 2026 till 17 April 2026 during the Tunnel Maintenance Works.

History of Activation

• 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:

• Reduced Circle Line Services for Tunnel Maintenance Works (Jan–Apr 2026)

External Links & References:

• Train Service Adjustments to Circle Line for Tunnel Works – Land Transport Authority

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