Platform screen doors (PSDs) and platform edge doors (PEDs) at train or subway stations screen the platform from the train. They are a relatively new addition to many metro systems around the world, some having been retrofitted to established systems. They are widely used in Asian and European metro systems. The first station in the world with platform screen doors is Park Pobedy (Russian: Парк Побе́ды) in the Saint Petersburg Metro that was opened in 1961.
Read more about Platform Screen Doors: Door Types, Automatic Platform Gate, Usage, Accidents
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