Anyone knows why 579 change parent svc huh?
Supplementary service rationalisation. Let me give you a
timeline.
Before Dec 07, 8 and 28 does not have any xover. 37 has xover
from 38 and 293.
On 3 Dec 07, 37 add split shift while 293 reduce split shift. At
the same time 293 xovers are gone, retaining the 38 xovers. From
the micro view this solves the 293 buses from doing 37 for most of
the duty to doing 37 as split shift.
In the planning of 579, I believe the staff didnt take into
consideration of the demand patterns of 37 as well as the operating
hours of 579. If not if they change it the driver allocation would
be somewhat messy as the new S37 split shift drivers would learn
579. Hence when 579 was introduced on 15 Dec 07, the
supplementary trips went to S8 and S28 instead.
As time evolved, to make things neater for Tampines Route Group
as well as the supplementary trips and drivers, it would be better
to allocate all the supplementary trips for 579 to one service
instead of 2 services if resources are justified.
Hence on 26 May 08, they add 1 split shift each for S8 and S28,
replacing 2 supplementary buses each. There's an overall deduction
of buses (and of course drivers) of S37 (3 buses), 8/28 (1 bus
each) and 38 (1 bus). To top it off, S38 had its supplementary
trips removed and fleet size cut. S37's original 2 buses can be
converted into DD to solve the demand crunch during peak as well as
off peak hours.
1 stone kill many birds.. where to find?
