5 - SD fleet add. I don't know why they don't do more SD->DD
upgrades for svc 5 when it has such high loading
16 - 2 fleet add (SDs) to meet the high demand between Dunman
and Dakota
32 - 1 SD fleet add to boost frequency
35 - 1 more SD -> DD upgrade. Now operating with 9 DDs,
2 SDs.
64 - SD fleet add, now operating with 13 buses. Frequency
boost
93 - SD fleet add. Frequency boost.
124 - SD fleet add. Frequency boost.
131 - SD fleet add. Frequency boost.
157 - 2 SD fleet add to meet demand between Beauty World and
Boon Lay. Improved frequency.
Does SBST have shortage of DDs? Except for svc
35 all have been SD fleet adds + 116/109 also got SD fleet add
recently. Hardly any SD->DD upgrades. Some of them are SD
services, but even for DD worthy services SDs have been deployed
(5/109) and no SD->DD upgrade for few services.
Because SBST doesn't blatantly add double decker buses for no
reason.They rather use it as spare so that other DD svc also can
use.