Here you can find the shape files with subway lines for all underground systems of cities over former Soviet Union area (the name of the file corresponds to a city subway system) – Russia, Ukraine, Belarus, Armenia, Kazakhstan, Uzbekistan, Georgia.
In contrast to OSM data, our shape files support single-track subway lines whereas OSM provides two tracks for each subway line. Sometimes it causes inconvenience for users especially then you don't want to overload your map with additional data.
You can easily change the attributes of the files (for ex. color, opacity, texture etc.) for different visualization needs.
Licensed under ODbL. See LICENSE.
More examples here.