I suggest SMRT close for 1 mth. And go overhaul, service, or watever fucking maintenance need to be done. After 1 month ,make that fucker Khaw to declare its safe and then promise the public no more fault line lah, signal line lah, collision lah next 5 years. Fuck lah so many reasons and excuses. If after close for 1 mth and then problems still persist, then Khaw must resign and crawl back to Penang!