4 ms·
with an overhead railway you have the problem of getting people up and down from the platform, and it's only marginally less intrusive to the rest of the public
by notatoad 7y ago
with an overhead railway you have the problem of getting people up and down from the platform, and it's only marginally less intrusive to the rest of the public realm than a ground-level railway is.
with an underground railway you do still have the same problem of getting people up and down to the platform, but you have the advantage of the railway being completely out of the way of anything else.