AFAIK, When CCL opens, NSL and CCL's platforms would be linked
by escalators. I havnt heard about this PSDs yet. If you wish to
know more, maybe u wud like to go to Bishan Stn exit (The exit that
does NOT bring u to the bus stop(overhead bridge) and Junction 8,
in other words, use the exit that allows a person to turn left to
J8 and right to the bus stop). There is some information 'exhibits'
there regarding the future of Bishan Stn.
