Yishun MRT Suicide - Was SMRT negligent?

We refer to the article "Another death on the tracks - 4th in 2 months" (Straits Times, 6 Dec 06). It was reported that the "victim, said to be (a) foreign worker in his early 20s, (wa)s hit by (a) train at Yishun MRT station" and that the "incident disrupt(ed) (the) morning rush-hour service".

We would like to highlight that a video footage of the actual incident has been released on the internet and it clearly shows what actually happened - the man hid below the platform and crawled out and laid on the tracks as the train was approaching.

Our questions to SMRT are:

1) How did the man manage to go down to the platform and hide there undetected?

2) As reported by the Straits Times - 4 deaths in 2 months, we feel that this is alarming statistics. What is SMRT doing to prevent incidents like this from happening in future, bearing in mind that existing safety measures have FAILED miserably?