Why were stations with platform doors built in the Leningrad Metro?


PrizrakDyavola
 
Why were stations with platform doors built in the Leningrad Metro?
Source
Why were stations with platform doors built in the Leningrad Metro? - Metro, Saint Petersburg, Copy-paste, Longpost
Why were stations with platform doors built in the Leningrad Metro? - Metro, Saint Petersburg, Copy-paste, Longpost
Why were stations with platform doors built in the Leningrad Metro? - Metro, Saint Petersburg, Copy-paste, Longpost
Why were stations with platform doors built in the Leningrad Metro? - Metro, Saint Petersburg, Copy-paste, Longpost
Why were stations with platform doors built in the Leningrad Metro? - Metro, Saint Petersburg, Copy-paste, Longpost
Why were stations with platform doors built in the Leningrad Metro? - Metro, Saint Petersburg, Copy-paste, Longpost
Why were stations with platform doors built in the Leningrad Metro? - Metro, Saint Petersburg, Copy-paste, Longpost
Why were stations with platform doors built in the Leningrad Metro? - Metro, Saint Petersburg, Copy-paste, Longpost

Copy-paste Metro Saint Petersburg
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