Have double decker or elongated trains also no use. Platform
size still the same, so people are going to crowd near the doors
ANYWAY.
Even if we have a ten-car EMU, everyone's gonna crowd at the
doors of the 6 EMUs.
Even if double decker, everyone will come down to the lower
level and still crowd the doors, unless we build a double-storey
platform.
Simple solution - just make the entire length of the
train a BIG LONG DOOR. No need walls, just a long door
stretching from one end to the other. So no matter where you are,
you are always gonna be near the door :P
Or else, just the floor and the roof, without any walls. So
commuters dont need to wait for doors to open and they can rush out
haha.