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You can study this map in detail here:
Concept explanation and comments in my blog (in russian):
mvit.livejournal.com/15229.html
mvit.livejournal.com/15229.html
This concept wasn't selected by jury for public voting. The winner of the contest is Art. Lebedev Studio. You can have a look at their solution here: artlebedev.com/everything/metro/official-map/