For example? Which service are you referring to? I don't think
any of the deserving DD routes have an issue with DDs plying. Some
of them already have DDs from other depots.
There are many reasons why not all eligible bus services have
double decker buses yet.
Another reason could be that the number of double decker buses
SMRT has is not yet enough to deploy on every bus service eligible
for them.
Bus service 180 is an example of bus services that is eligible
for double decker buses but does not have them yet. For bus service
180, it could be that the roads it ply have smooth traffic and can
make do with having articulated buses for high capacity.
I am sorry I am not able to provide more examples as my
knowledge on bus services operated by SMRT is limited and I hardly
commute on bus services operated by SMRT outside of where I
reside.
