Assuming no change...
Premium
590
Duty: 970S102
Perm bus: TIB 0809S
Timesheet details: 1 downroute trip of 300 starting from CCK
Ave 3, followed by Premium 590, after reaching Shenton Way it
continues 970 as normal. (includes Swing)
Premium
599
Duty: 167S151
Perm bus: TIB 0917M (Usually)
Timesheet details: 1 trip of 969 from WRI to TAM, followed by
Premium 599, after reaching Shenton Way it continues 167 as normal.
(includes Swing)
Premium 587 perm bus has been changed to TIB 0535G from TIB
0541M, the latter is back to it's ex-perm service 920. Does 1 trip
of 901 before doing Premium 587, thereafter it ends shift and
returns to depot.
You may want to read more about them here: http://www.sgwiki.com/wiki/SMRT_Premium_Services though
I don't really understand what he meant when he edited the Premium
546 portion.
I think this topic is a little bit side-tracked from svc
920.
However, answering to your query about my edited post on PBS 546
on sgwiki:
Crossover from YIDEP 853
Reduction from 2 trips to 1, withdraw supplementary from KJDEP
985
Originally, when PBS 546 was first introduced, there were 2
trips departing Blk 73 Geylang Bahru @ 0825 (supplemented by KJ's
985S101) & 0835 (by YIDEP's 853S203).
Due to "changing demands" as quoted by SMRT, the 0835 trip will
be withdrawn effective from 20 Oct 08, leaving the one and only
trip departing 0825 which is served by YIDEP's 853S203.
Btw, the official terminology for "crossovers" is supplementary
trips, that is why I wrote supplementary instead of "crossover" or
"x-over".
Hope this clarifies.