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. 

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.

Please watch this space for the latest schedule:

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.