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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 12 to 18 October 2026

 





1Dhoby Ghaut - Orchard12 October 20260100 - 0430 hrs
2Orchard - Novena13 October 20260100 - 0430 hrs
3Marina Bay - City Hall13 October 20260100 - 0430 hrs
4City Hall - Raffles Place13 October 20260100 - 0430 hrs
5Raffles Place - Marina Bay13 October 20260100 - 0430 hrs
6City Hall - Bugis 13 October 20260100  0430 hrs
7Kallang - Bugis14 October 20260100 - 0430 hrs
8Raffles Place - Marina Bay14 October 20260100 - 0430 hrs
9Newton - Novena14 October 20260100 - 0430 hrs
10Tanjong Pagar - Raffles Place 14 October 20260100 - 0430 hrs
11Tiong Bahru - Outram Park14 October 20260100 - 0430 hrs
12City Hall - Bugis15 October 20260100 - 0430 hrs
13Newton - Orchard15 October 20260100 - 0430 hrs
14City Hall - Raffles Place15 October 20260100 - 0430 hrs
15Tiong Bahru - Outram Park15 October 20260100 - 0430 hrs
16Bugis - City Hall15 October 20260100 - 0430 hrs
17Marina Bay15 October 20260100 - 0430 hrs
18Marina Bay - Raffles Place16 October 20260100 - 0430 hrs
19City Hall - Raffles Place16 October 20260100 - 0430 hrs
20Redhill - Tiong Bahru16 October 20260100 - 0430 hrs
21City Hall - Bugis16 October 20260100 - 0430 hrs
22Tanjong Pagar - Raffles Place 16 October 20260100 - 0430 Hrs
23Somerset - Orchard16 October 20260100 - 0430 hrs
24Bishan - Braddell16 October 20260100 - 0430 hrs
25Tanjong Pagar - Raffles Place17 October 20260100 - 0430 hrs
26Tiong Bahru - Outram Park17 October 20260100 - 0430 hrs
27Marina Bay - City Hall17 October 20260100 - 0430 hrs
28Orchard - Somerset17 October 20260100 - 0430 hrs
29City Hall - Raffles Place17 October 20260100 - 0430 hrs
30Raffles Place - Marina Bay17 October 20260100 - 0430 hrs
31Outram Park - Tiong Bahru17 October 20260100 - 0430 hrs
32Outram Park - Tiong Bahru18 October 20260100 - 0430 hrs
33Newton - Novena18 October 20260100 - 0430 hrs
34Newton - Orchard18 October 20260100 - 0430 hrs
35Raffles Place - Marina Bay18 October 20260100 - 0430 hrs
36Tiong Bahru - Outram Park18 October 20260100 - 0430 hrs
37Outram Park- Tanjong Pagar18 October 20260100 - 0430 hrs

Night Grass-Cutting Works Schedule

1

504, 506, 508, 510 & 512 Ang Mo Kio Ave 8


16 October 20260130 - 0430 hrs
2542 Bukit Batok Street 52
17 October 20260100 - 0430 hrs

Late-Night SMRT Generator Testing Schedule

1Lorong Chuan15 October 20260100 - 0400 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.