Singapore's problem with subway is that the ground is unstable
for large-scale tunnelling. Don't forget the Nicoll Hwy collapse
and the sinking of Hock Kee House and SGN estate ground
movements.
Hock Kee House is typical case as like some other HDB blocks tat
kena SERS over ground issues. Dun forget the piling technology back
in the 1960s and early 1970s are relatively different and probably
another fact they didn't fill e swamps properly.
Nicoll Highway was they wanted cheap and want fast.
In any case, we can't be building MRT forever because we need
space for underground usage.
