Keep in mind that opening under the Putin Admin doesn't mean the projects weren't started under Yeltsin.  I don't know that the av. time it takes to finish an extension is, but work on the stop after Prazhskaya, which opened in 2000, was underway in 1995.  Likewise, if a line opened in 1992, I'm sure it was started back in the USSR...

Interesting question about who funds it.  In Chicago everyone is always screaming because the CTA is a mess, but the funds come from the state and federal government, which don't seem to grasp how important it is to the city...

"Pretending that you already know the answer when you don't is not actually very helpful." ~Migeru.