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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 25 to 31 August 2025

 

1Tiong Bahru - Outram Park26 August 20250100 - 0430 hrs
2Newton26 to 30 August 20250100 - 0430 hrs
3City Hall27 August 20250100 - 0430 hrs
4Lavendar - Bugis27 August 20250100 - 0430 hrs
5Bugis28 to 30 August 20250100 - 0430 hrs
6Tanjong Pagar - Outram Park30 August 20250100 - 0430 hrs
7Tiong Bahru - Outram Park31 August 20250100 - 0430 hrs
8Lavendar - Kallang31 August 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.