BLE nv open to public yet there is a ringing announcement
made..
security officer is stationed at pioneer mrt near blk 651A
before the overhead bridge entrance/exit..
To prevent unauthorised entries when the authorised ppl are
doing tests & doing final touchs on BLE Stations/tracks since
3Q of 2008.
When they are doing the tests, main power(for announcement,
lights, etc...) are swtiched on to simulate normal operating
procedure of a MRT Station