No, black dotted cant be Promenade to Dhoby Ghaut given that
considerations must be made to existing Harbourfront Via Bishan /
Marymount will then how? Since, given that between Nicoll Highway
to Promendae does not have any crossovers / or provisions for that
(A weird shaped tunnel, where one of the side is getting wider or
such).
But I believe, if Bayfront is NOT a stack, then there is a great
chance that daily first train from Promendae to Marina Bay is using
the current platform (Towards DBG), go straight instead of right
towards Bayfront & Marina Bay. Then, it returns to Promendae
like my second diagram, and use a new, opposite of current
platform. BUT the issue is, there does not seemed to have
provisions for that :( , so it might jolly well as a wasted
platform.
My personal view is that, since between Marina Bay -
Harbourfront Via Bishan is not feasible due to amount of C830s, and
the track diagram does not allow trains from Dakota to Paya Lebar
using Middle Platform (Only from MacPherson, too bad), and using
Promendae as terminus of the Marina Bay Extension may not be the
choice, due to the need to replace the existing tracks to "slanted
X shaped crossover", where the age of changing the tracks, is
simply too new to do so, I think the authority may choose to ply
trains between Marina Bay - Mountbatten, and when the train leaves
Stadium, it uses the middle track towards Mountbatten, and
terminates the train at Mountbatten Dhoby Ghaut bound. Of course,
they may do a "sliding method" like present LTE, such that they get
everyone alight at Stadium, terminates the train in the middle
track, and resume service on Stadium towards Marina Bay.
In Summary, the feasible options on top of Dhoby Ghaut -
Harbourfront Via Bishan Full train are:
1: Promendae - Marina Bay shuttle train
2: Marina Bay - Harbourfront full train
3: Marina Bay - Stadium / Mountbatten (BTW, the last train from
Marymount terminates at Mountbatten)
Why draw all over again when someone else has done it for
you!
wodden board wall right, i knock it look like wood.


CCLe and DTL tunnels run parallel under the river and are
already completed! (DTL1 newsletter/no. 10) The diagram in the
newsletter is specific; CCLe left and DTL1 on the right.
You might think it does not make sense for Circle Line (Marina
branch) and Downtown Line to run parallel. But during planning,
they would have considered
(1) saving the pain of passengers having to change around again at
Promendae since both lines are heading to different ends of the
island OR/AND
(2) do a Raffles Place style track swtiching, since Bayfront would
be the middle of the Downtown Line (if you take Stage 3 into
consideration).