Changes to schedules from tomorrow for the following
services due to QoS:
S21
S79
S183
The above 3 are the ones reflected in SBST's ETT section. But
there are services like S63 & S73 which do not have ETT
that are also changing schedules due to QoS.
Peak hour headway lowered down to 10-11 mins. Using S79 as a
comparison (because it's the easiest of the 3 to re-do):
Before:
From 6.28am - 9.50am, headway is 14-16 mins.

After (similar time frame):
From 6.32am - 9.57am, headway is 10-11 mins with the exception
of a block of 15 mins in the middle.

Comparing both as a whole the new schedule has introduced 10
more full trips during peak hour.
S183 did not change schedule tomorrow because of QoS. The old
schedule more than satisfy the standard.