Exclusive: St Petersburg's Metro System (Метро В Санкт петербурге) 2010

The Saint Petersburg Metro (Russian: Петербу́ргский метрополитен) is the underground railway system in Saint Petersburg and Leningrad Oblast, Russia. It has been open since November 15, 1955. Formerly known as the V.I. Lenin Order of Lenin Leningrad Metropoliten (Russian: Ленинградский Ордена Ленина Метрополитен имени В.И. Ленина), the system exhibits many typical Soviet designs and features exquisite decorations and artwork making it one of the most attractive and elegant metros in the world. Due to the city's unique geology, the Saint Petersburg Metro is one of the deepest subway systems in the world and the deepest by the average depth of all the stations. The system's deepest station, Admiralteyskaya, is 105 metres below ground. Serving nearly three million passengers daily, it is also the 13th busiest subway system in the world.
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1st clip: a new design called "horizontal lift" became widespread, and 10 stations were built with this layout. The horizontal lift design is a variation of a station with Platform screen doors, and has not been found elsewhere outside Saint Petersburg. However, because the design became unpopular with passengers, and for technical reasons, no stations featuring this design have been built since 1972.