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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 11 May to 17 May 2026

 





1Novena - Toa Payoh11 May 20260100 - 0430 hrs
2Outram Park - Tiong Bahru11 May 20260100 - 0430 hrs
3City Hall - Raffles Place 12 May 20260100 - 0430 hrs
4Outram Park - Redhill12 May 20260100 - 0430 hrs
5Newton - Novena12 May 20260100 - 0430 hrs
6Novena - Newton12 May 20260100 - 0430 hrs
7City Hall - Bugis12 May 20260100 - 0430 hrs
8Lavendar - Bugis12 May 20260100 - 0430 hrs
9Lavendar - City Hall13 May 20260100 - 0430 hrs
10Dhoby Ghaut - Orchard13 May 20260100 - 0430 hrs
11Newton - Novena13 May 20260100 - 0430 hrs
12Orchard - Newton13 May 20260100 - 0430 hrs
13Novena - Newton13 May 20260100 - 0430 hrs
14Orchard - Somerset13 May 20260100 - 0430 hrs
15Bugis - Lavendar13 May 20260100 - 0430 hrs
16City Hall - Bugis13 May 20260100 - 0430 hrs
17Raffles Place - Marina Bay14 May 20260100 - 0430 hrs
18Braddell - Toa Payoh14 May 20260100 - 0430 hrs
19Newton - Novena14 May 20260100 - 0430 Hrs
20Novena - Newton14 May 20260100 - 0430 hrs
21Newton - Orchard14 May 20260100 - 0430 hrs
22City Hall - Bugis14 May 20260100 - 0430 hrs
23Bugis - Lavendar14 May 20260100 - 0430 hrs
24City Hall - Dhoby Ghaut15 May 20260100 - 0430 hrs
25Somerset - Orchard15 May 20260100 - 0430 hrs
26Orchard - Newton15 May 20260100 - 0430 hrs
27Orchard - Somerset15 May 20260100 - 0430 hrs
28Tiong Bahru - Outram Park15 May 20260100 - 0430 hrs
29Novena - Newton16 May 20260100 - 0430 hrs
30Orchard - Novena16 May 20260100 - 0430 hrs
31Tiong Bahru - Redhill16 May 20260100 - 0430 hrs
32City Hall - Dhoby Ghaut16 May 20260100 - 0430 hrs
33Orchard - Somerset16 May 20260100 - 0430 hrs
34Tiong Bahru - Outram Park16 May 20260100 - 0430 hrs
35City Hall - Raffles Place17 May 20260100 - 0430 hrs
36City Hall - Bugis17 May 20260100 - 0430 hrs
37Tanjong Pagar - Raffles Place17 May 20260100 - 0430 hrs
38Somerset - Orchard 17 May 20260100 -  0430 hrs
39City Hall - Dhoby Ghaut17 May 20260100 - 0430 hrs
40Orchard - Somerset17 May 20260100 - 0430 hrs
41Tiong Bahru - Outram Park17 May 20260100 - 0430 hrs

Night Grass-Cutting Works Schedule

1

542 Bukit Batok St 52


14 May 20260130 - 0430 hrs
2

254, 296D, 296E, 297C Choa Chu Kang Ave 2

813A Choa Chu Kang Ave 7

801A, 802A Keat Hong Close

21 May 20260130 - 0430 hrs

Late-Night SMRT Generator Testing 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.