Train Information


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.

From17 Mar to 23 Mar 2025


Item No

AffectedDateTimes
1City Hall - Kallang17 Mar 20250100 - 0430 hrs
2Bugis - City Hall17 Mar 20250100 - 0430 hrs
3City Hall - Tanjong Pagar19 Mar 20250100 - 0430 hrs
4Tanjong Pagar - Outram Park20 Mar 20250100 - 0430 hrs
5Kallang - Lavendar20 Mar 20250100 - 0430 hrs
6City Hall - Orchard21 Mar 20250100 - 0430 hrs
7City Hall - Tanjong Pagar21 Mar 20250100 - 0430 hrs
8Toa Payoh - Novena23 Mar 20250100 - 0430 hrs
9City Hall - Tanjong Pagar23 Mar 20250100 - 0430 hrs
10Tiong Bahru - Bugis23 Mar 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.