Basically, a few years ago the Moscow mayorate asked themself a question "can we build the Metro at Chinese rate?" and found the answer to be "yes". Before tha

Basically, a few years ago the Moscow mayorate asked themself a question "can we build the Metro at Chinese rate?" and found the answer to be "yes". Before that, Moscow metro had half dozen new stations per decade, now it's half dozen/yr. Saint Petersburg is still on the former schedule. But the takeway here, there's China who build a few new systems per year, go ask them and maybe employ some of their tech.