Since so many threads get sidetracked into arguing over the DD
v. bendy fight, I decided to open a thread.
I favour deckers because they:
1. Occupy less road space
2. Carry more people
3. Have a very nice upper deck
4. Are easier to maintain (being a one-piece chassis, with no
articulation joint and associated active hydraulics)
Bendies do have advantages, but they are useless in Singapore,
such as:
1. They have three doors, but the doors are wasted by being
entry-exit-exit, rather than all-entry/exit
2. They have a lot of longitudinal surface area, but the bus
bays are too short to benefit from this
To top it off, most non-decker routes can do with single-deck
regular buses.
Conclusion: the bendy is inferior to the decker for trunks (and
expresses, FastForwards etc) and overkill for feeders (and
TownLinks, NiteOwl etc). MOAR DECKERS!