asdf wrote:

Huh? Grade-separating the scissors crossover is hardly a huge leap of
the imagination. I'm sure a lot more than 1 person has thought of it
before, and then only considered it a passing thought rather than an
invention!

So? That doesn't change the fact that with almost all of the
conflicting movements created by a flat terminal layout removed by
grade-separating the scissors crossover, line capacity can be massively
increased.

If it's so humdrum, why hasn't it been done yet?