SMRT lists some safety dos and don'ts for passengers in the case of a service disruption:

Read also: »What went wrong and how they will be rectified »Transport Minister: 'Thorough review' of train system needed »SMRT: No efforts spared to make sure it doesn't happen again

• Do not force open the door as the train is 1.2m above the ground and passengers may hurt themselves if they fall out.
• Although the train may feel stuffy, there is backup power to keep the ventilation and emergency lights going for 45 minutes.
• The air-conditioning will be switched off, but air will still be circulated.
• Do not step out onto the tracks unless instructed by SMRT staff in an evacuation as the power rail may still be on and passengers risk being electrocuted.
• Do leave congested areas and stations by making alternative transport arrangements or taking the free bus bridging service provided.
• Do remain calm and wait for instructions.
• Do your best to help other passengers in need.
• Do press the Passenger Emergency Communications button to talk to the train officer.

This article was first published in The New Paper.