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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 17 to 23 November 2025

 





1City Hall - Raffles Place17 November 20250100 - 0430 hrs
2Marina Bay17 to 19 November 20250100 - 0430 hrs
3Redhill - Outram Park18 November 20250100 - 0430 hrs
4Novena - Toa Payoh18 November 20250100 - 0430 hrs
5Somerset - Orchard18 November 20250100 -0430 hrs
6Orchard - Somerset18 November 20250100 - 0430 hrs
7Outram Park - Tiong Bahru18 November 20250100 - 0430 hrs
8Tanjong Pagar - Raffles Place18 November 20250100 - 0430 hrs
9Newton18 to 22 November 20250100 - 0430 hrs
10Changi Online18 to 22 November 20250100 - 0430 hrs
11Changi Airport18 to 22 November 20250100 - 0430 hrs
12Orchard - Novena19 November 20250100 - 0430 hrs
13Bugis - Lavendar19 November 20250100 - 0430 hrs
14Redhill - Tiong Bahru
19 November 2025
0100 - 0430 hrs
15Lavendar - City Hall19 November 20250100 - 0430 hrs
16Orchard - Somerset19 November 20250100 - 0430 hrs
17Raffles Place - City Hall19 November 20250100- 0430 hrs
18City Hall - Raffles Place19 November 20250100 - 0430 hrs
19Tanjong Pagar - Raffles Place19 November 20250100 - 0430 hrs
20Dhoby Ghaut - Orchard20 November 20250100 - 0430 hrs
21Orchard - Somerset20 November 20250100 - 0430 hrs
22Raffles Place -Marina Bay20 November 20250100 - 0430 hrs
23Tanjong Pagar - Raffles Place20 November 20250100 - 0430 hrs
24City Hall -Outram Park21 November 20250100 - 0430 hrs
25Novena - Orchard21 November 20250100 - 0430 hrs
26Somerset - Orchard21 November 20250100 - 0430 hrs
27Orchard - Somerset21 November 20250100 - 0430 hrs
28Tiong Bahru - Outram Park21 November 20250100 - 0430 hrs
29Tanjong Pagar - Raffles Place21 November 20250100 - 0430 hrs
30Raffles Place - Marina Bay22 November 20250100 - 0430 hrs
31Tanjong Pagar - Raffles Place22 November 20250100- 0430 hrs
32Lavendar - Bugis22 November 20250100 - 0430 hrs
29Bugis - Lavendar22 November 20250100 - 0430 hrs
34Lavendar - Kallang23 November 20250100 - 0430 hrs
35Tiong Bahru - Outram Park`23 November 20250100 - 0430 hrs
36Tanjong Pagar - Raffles Place23 November 20250100- 0430 hrs
37Braddell - Toa Payoh23 November 20250100 - 0430 hrs
38Raffles Place - Tanjong Pagar23 November 20250100 - 0430 hrs
39Outram Park - Tiong Bahru23 November 20250100 - 0430 hrs
40Lavendar - Bugis23 November 20250100- 0430 hrs
41Bugis - Lavendar23 November 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.