u haf to understand restrictions...height, width or wadever...
and some fleet is never 100% DD/bendy so dun expect DD/bendy
lah...bound to haf sum SD de mah...
ways to solve the problem is the incresing of frequency...
and ur complain is typical and common and can be heard on streets,
ppl cursing at SBST(the extreme ones)...but when u understand how
SBST or SMRT works...den u may think tat it is not very
possible...the very best they can do(sadly, sum svc jus haf poor
sechduling), is try to make DD/bendy ply high demand route during
peak hrs...but den svc like 66 can NEVER HAF DD(BT RD) due to low
branches and 156(6th AVE) too