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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 29 Sept 2025 to 5 Oct 2025

Item No
AffectedDateTimes
1
Dhoby Ghaut - Orchard
29 Sept 2025
0100 – 0430 hrs
2
Bishan - Toa Payoh
30 Sept 2025
0100 – 0430 hrs
         3Newton30 Sep to 3 Oct 20250100 - 0430 hrs
         4Marina Bay30 Sep to 3 Oct 20250100 - 0430 hrs
5
City Hall - Somerset
1 Oct 2025
0100 – 0430 hrs
6
Raffles Place - Tanjong Pagar
1 Oct 2025
0100 – 0430 hrs
7Tiong Bahru - Redhill2 Oct 20250100 - 0430 hrs
8Tanjong Pagar3 Oct 20250100- 0430 hrs
9Bugis - City Hall3 Oct 20250100 - 0430 hrs
10Outram Park - Raffles Place3 Oct 20250100 - 0430 hrs
11City Hall - Bugis3 Oct 20250100 - 0430 hrs
12Newton - Somerset4 Oct 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.