Well, nobody suggested splitting route 51 yet. Don't forget the
current route is due to its absorption of the old route 192 that
plied between Jurong and South Canal.
Please go back and read my post. I have reiterated again and again
that 2 services need to be split on priority: 51 and 61.
51 can be split into 2 services
61 can be shortened to NBR Terminal or Harboufront Interchange
(no need to split into 2 services)