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Tunnel Ventilation Fans Activation Schedules

Tunnel Ventilation Fans (TVFs) are installed near certain MRT stations along the North-South and East-West to provide air movement in MRT tunnels. 

TVFs are used primarily for:
1. Maintenance works in the tunnels during non-revenue hours. These include works such as tunnel washing, rail welding and rail grinding.
2. Emergency situations when commuters are evacuated from the tunnel to the nearest station platform.

The powered ventilation is necessary for the health, safety and comfort of our workers in the tunnel as the TVFs remove elements such as smoke, heat and dust generated during the maintenance works. 
 
We have made every effort to minimise noise and any inconvenience caused to neighbouring residential and commercial areas. Please watch this space for the latest schedule.

From 13 to 19 October 2025

 

1Outram Park - Tiong Bahru14 October 20250100 - 0430 hrs
2City Hall - Kallang14 October 20250100 - 0430 hrs
3Tanjong Pagar - Raffles Place14 October 20250100 - 0430 hrs
4Tiong Bahru - Redhill15 October 20250100 - 0430 hrs
5Tiong Bahru - Outram Park17 October 20250100 - 0430 hrs
6Tiong Bahru - Commonwealth17 October 20250100 - 0430 hrs
7Kallang - Bugis17 October 20250100 - 0430 hrs
8Bradell - Toa Payoh17 October 20250100 - 0430 hrs
9Tiong Bahru - Raffles Place18 October 20250100 - 0430 hrs
10Lavendar - Kallang19 October 20250100 - 0430 hrs

11

Tiong Bahru - Outram Park19 October 20250100 - 0430 hrs


NOTE: The maintenance schedule is accurate at the time of publication but is subject to change due to unforeseen circumstances such as weather condition, urgent track work for safety reasons, etc.