Tanjong Pagar KTM Station to be preserved.
Tracks are to be changed to the standard gauge 1435mm from
1000mm.
Station to used for the future MRT line.
HHPSD to be installed.
The MRT Line could be from Woodlands to Tanjong Pagar via Buona
Vista using the orginal KTM line whilst modifiying the track
gauge

NW1 - Sungei Kadut
NW10/EW21/CC22 - Buona Vista
NW15/ NE2 - Kampong Bahru (Tanjong Pagar KTM Railway station
converted)
You do know that you can't double track the section because of
some road bridges, rail bridges and gorges right? You cannot modify
them as they are in heavy use by vehicles. And how about level
crossings? Electrification? LTA does not want overhead catenary
wires to be seen in the open. Third rail? Fence the entire area.
What happens if people want to cross the tracks? Cut the fence.
HHPSDs cannot be installed because the platform is too low.
Currently, you have to climb the train's ladder to get on board.
You cannot modify the track gauge as there will be almost zero
clearance between the tracks on Platform 1, the Escape Route and
Platform 2. Platform 3 will have to be abandoned if you change it
to Standard Gauge. On top of that, if you want a Singapore-style
MRT, you have to raise the platform. Being a site to be preserved,
URA and SLA says that you cannot modify the building if it is in
use for its original purpose - only refurbish. And as what Samuel
Lee said, you are duplicating the entire section of the Downtown
Line from Bukit Panjang to King Albert Park. LTA will never do
that.
You cannot extend the MRT to Woodlands Checkpoint because it
will be in use by another MRT line linking JB and Woodlands MRT
Station. You cannot build another platform as there is no space
there already. You cannot use Woodlands Train Checkpoint because,
first of all it's a checkpoint, and second it is in use by KTM.
I believe that you are just creating another fantasy line in
this forum again. Try thinking before you post next time, and don't
shoot your mouth off too fast.
Off-topic: Samuel Lee, SMRT MOWs operate using diesel
because when they need to repair stuff along the track, they will
switch off the third rail.