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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 5 to 11 May 2025


Item No

AffectedDateTimes
1Lavendar - Kallang5 May 20250100 - 0430 hrs
2Raffles Place6 - 11 May 20250100 - 0430 hrs
3Orchard - Dhoby Ghaut7 May 20250100 - 0430 hrs
4City Hall - Kallang7 May 20250100 - 0430 hrs
5Dhoby Ghaut - Raffles Place8 May 20250100 - 0430 hrs
6Toa Payoh - Braddell8 May 20250100 - 0430 hrs
7Marina Bay8 - 9 May 20250100 - 0430 hrs
8Marina South Pier8 - 9 May 20250100 - 0430 hrs
9Novena8 - 10 May 20250100 - 0430 hrs
10Braddell - Toa Payoh9 May 20250100 - 0430 hrs
11Somerset - Toa Payoh10 May 20250100 - 0430 hrs
12Lavendar - Kallang10 May 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.