service 53 can has DD service it possible as it can terminated
somewhere at pasir ris and make u turn back to bishan as 53A ??????
As the service alway full of people along pasir ris. or the DD bus
start picking up people along pasir ris or loyang road???
Airport svc with "A" can use DD/Bendy, but they must see the
load. But Airport svc(just the no., no A/B/C...) only can use
rigid.
