page_title: E233 series
section_title: E233-2000 series
hierarchical_section_title: E233 series / E233-2000 series
caption_attribution_description: 日本語: 常磐緩行線を走るE233系2000番台マト10編成(719K 各停我孫子行)
context_page_description: The E233 series is a commuter and suburban electric multiple unit train type developed by East Japan Railway Company from the earlier E231 series and the E531 series design. The first train was introduced in December 2006 for use on the Chūō Line, followed by the E233-1000 series variant in 2007 for use on the Keihin–Tōhoku and Negishi lines, the E233-3000 series outer-suburban variant in December 2007 for use on the Tōkaidō Main Line, and narrow-bodied E233-2000 series variant for Jōban Line and Tokyo Metro Chiyoda Line inter-running services. Further variants were built for use on the Keiyō Line, Yokohama Line, Saikyō Line, and Nambu Line.
context_section_description: This is a narrow-bodied variant for Jōban Line and Tokyo Metro Chiyoda Line inter-running services, replacing the 203 series and 207-900 series EMUs previously used. The first ten-car set was delivered to Matsudo Depot from Tokyu Car Corporation in May 2009. It entered service on 9 September 2009.
  These trains have also been used on inter-running services on Odakyu lines since 2016. In 2017 the last set was delivered (set number 19 built by J-TREC). The trains are fitted with emergency doors in the driver's cabin to allow for the evacuation of passengers in the Chiyoda Line's tunnels.
  The floor height is lowered to 1,130 mm (44 in) for improved accessibility, compared to 1,200 mm (47 in) for the earlier 203 series and 1,180 mm (46 in) for the 207-900 series and 209-1000 series trains.
caption: Jōban Line/Tokyo Metro Chiyoda Line E233-2000 series set 10 in April 2019
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