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〕 | numberpreserved = 1 vehicle | numberscrapped = | formation = 4/6/8/10 cars per trainset | fleetnumbers = | capacity = | operator = JR East | depots = Kawagoe, Makuhari, Matsudo, Mitaka, Nakahara | lines = Chūō-Sōbu Line, Hachikō Line, Jōban Line, Kashima Line, Kawagoe Line, Keiyō Line, Musashino Line, Nambu Line, Narita Line, Sōbu Main Line, Sotobō Line, Togane Line, Uchibō Line | carbody = Stainless steel | carlength = | width = ( for 209-500 series) | height = | doors = 4/6 pairs per side | maxspeed = | acceleration = 2.5 km/h/s or 3.3 km/h/s | deceleration = 4.0 km/h/s (4.5 km/h/s for emergency brake) | traction = | poweroutput = 1,520 kW (6 motors) | transmission = | aux = | powersupply = | hvac = | electricsystem = 1,500 V DC overhead | collectionmethod = PS28 diamond-shaped pantograph PS21 diamond-shaped pantograph (209-1000 series) PS33A single-arm pantograph (209-500 series) | bogies = | brakes = Regenerative brake, electronically controlled pneumatic brakes | safety = ATS-P, ATS-SN, ATC, Digital ATC | coupling = | multipleworking = | gauge = }} The is a commuter electric multiple unit (EMU) train type operated by East Japan Railway Company (JR East) in the Tokyo area of Japan since 1993. The series was introduced in 1993 to replace the aging 103 series stock on the Keihin-Tōhoku and Negishi lines. The concept of the 209 series was to create a low-cost, minimal lifespan train (approximately 15 years) that would be replaced rather than rebuilt when they became life-expired. The 209 series was the first of the , and served as the basis for the E501, E217, 701, and E127 series rolling stock, as well as the E231 series stock, which in turn became the blueprint for successive trains developed by JR East and other railway companies in Japan. ==Operations== * Chūō-Sōbu Line: 10-car 209-500 series sets (from 1998) * Hachikō Line/Kawagoe Line: 4-car 209-3000 series (x4) and 209-3100 series (x2) sets (from 1996) * Jōban Line: 10-car 209-1000 series sets (x2) (from 1999) * Keiyō Line: 10-car 209-500 series sets (from October 2008) * Musashino Line: 8-car 209-500 series sets (from December 2010) * Nambu Line: 6-car 209-0 series set (x1) (from 1993) and 209-2200 series sets (x3) (from 2009) * Narita Line: 4/6-car 209-2000/2100 series sets (from October 2009) * Sōbu Main Line: 4/6-car 209-2000/2100 series sets (from October 2009) * Sotobō Line: 4/6-car 209-2000/2100 series sets (from October 2009) * Uchibō Line: 4/6-car 209-2000/2100 series sets (from October 2009) 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「209 series」の詳細全文を読む スポンサード リンク
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