http://www.sbstransit.com.sg/download/relocated_bus_stops_svc400.pdf
The following changes will be made to Sv 400 WEF 24 June...
1) Ops hours for the first bus will now be 0700 daily instead of
0900.
2) Freq will be improved to 15 - 20 mins per bus.
3) Weekend bus freq would be at 10 mins per bus for now.
4) All the old Marina buffet era bus stops would say goodbye on
24 June, Sv 400 will ply Marina Gardens Drive instead. 1 main bus
stop would be added located right in front of Gardens by the
Bay.
The Marina Barrage shuttle will cease to operate from 1 July,
likely with Sv 400's revised 15 - 20 mins headways.