Every year, team members are trained in how to build flood obstacles, and maintenance is even done.  ,
PUB  checks their disaster security measures every in addition to working with those who run critical infrastructure to make sure they are prepared for floods.  ,
” This includes ensuring that the flood protection measures in the buildings like MRT facilities are up to date, and also witnessing the staff physically installing our flood barriers,” said PUB’s chief engineer of drainage functions in its reservoir and waters office, Lee Cai Jie.  ,
He added that PUB required a more” strict” least peak level , for underwater MRT facilities compared to other floor features, such as car gardens.
Compared to the floor or street level, a peak level is the lowest point of any entry leading into or aside from an underwater facility.  ,
The crest level for underground MRT stations and tunnels was also increased by 1m to 1.3m above the adjacent road or ground level in 2011.  ,
This requirement explains why stairs typically lead to the entrances of underground MRT stations.
” This precautionary measure allows us to ensure that any flood waters from the road or surrounding areas will not enter the public transportation system, keeping commuters safe as they travel from point to point,” said Mr. Lee.  ,