{
  "edition": "2026-11-07",
  "id": "jrk-813",
  "locale": "id",
  "url": "https://senroam.com/id/trains/jrk-813/",
  "name": "813 · Fukuoka · 福岡",
  "summary": "813 · Fukuoka · 福岡 · Check the seating layout before assuming two 813s have the same interior. Some sets were rebuilt with lengthwise seating.",
  "type": "train",
  "questions": [],
  "sources": [
    {
      "url": "https://railway-catalog.com/02/0105813.html",
      "checked": "2026-11-07",
      "lang": "ja"
    }
  ],
  "detail": "Check the seating layout before assuming two 813s have the same interior. Some sets were rebuilt with lengthwise seating.",
  "technical": {
    "record": [
      [
        "813 · 2023",
        1,
        "3",
        "813"
      ]
    ],
    "sources": [
      {
        "id": "813",
        "title": "813系電車ロングシート化します",
        "publisher": "JR九州",
        "url": "https://www.jrkyushu.co.jp/news/__icsFiles/afieldfile/2023/11/30/231130_813_long-seat.pdf",
        "source_language": "ja",
        "effective_date": "2023-11-30",
        "locator": "§1",
        "supports": "Converted three-car set; 120 longitudinal and 28 box seats.",
        "checked": "2026-11-07",
        "rights": "Consulted for facts. No source text or artwork redistributed."
      },
      {
        "id": "815",
        "title": "社会・産業・家庭",
        "publisher": "日立評論",
        "url": "https://www.hitachihyoron.com/jp/pdf/2000/01/2000_01_06.pdf",
        "source_language": "ja",
        "effective_date": "2000-01",
        "locator": "九州旅客鉄道株式会社納め815系電車",
        "supports": "A-train, FSW aluminium double-skin body, IGBT equipment; delivered June–September 1999.",
        "checked": "2026-11-07",
        "rights": "Consulted for facts. No source text or artwork redistributed."
      },
      {
        "id": "817",
        "title": "最近の鉄道車両 A-train",
        "publisher": "日立評論",
        "url": "https://www.hitachihyoron.com/jp/pdf/2003/08/2003_08_02.pdf",
        "source_language": "ja",
        "effective_date": "2003-08",
        "locator": "Opening figure, 817系電車",
        "supports": "817 belongs to the A-train aluminium vehicle system.",
        "checked": "2026-11-07",
        "rights": "Consulted for facts. No source text or artwork redistributed."
      },
      {
        "id": "821",
        "title": "第8回グリーンボンド レポーティング",
        "publisher": "JR九州",
        "url": "https://www.jrkyushu.co.jp/company/ir/library/greenbond/pdf/241218_8th_greenbond_reporting_jp.pdf",
        "source_language": "ja",
        "effective_date": "2024-03-31",
        "locator": "821系車両新製",
        "supports": "SiC main circuit; March 2019 service entry Kokura–Arao.",
        "checked": "2026-11-07",
        "rights": "Consulted for facts. No source text or artwork redistributed."
      },
      {
        "id": "701",
        "title": "701系",
        "publisher": "JR東日本",
        "url": "https://www.jreast.co.jp/train/local/701.html",
        "source_language": "ja",
        "effective_date": null,
        "locator": "車両紹介",
        "supports": "AC train; standard-gauge variants for mini-Shinkansen corridors.",
        "checked": "2026-11-07",
        "rights": "Consulted for facts. No source text or artwork redistributed."
      },
      {
        "id": "e127",
        "title": "E127系",
        "publisher": "JR東日本",
        "url": "https://www.jreast.co.jp/train/local/e127.html",
        "source_language": "ja",
        "effective_date": null,
        "locator": "車両紹介",
        "supports": "Two-car minimum; three doors per side; semi-automatic door operation.",
        "checked": "2026-11-07",
        "rights": "Consulted for facts. No source text or artwork redistributed."
      },
      {
        "id": "e129",
        "title": "E129系",
        "publisher": "JR東日本",
        "url": "https://www.jreast.co.jp/train/local/e129.html",
        "source_language": "ja",
        "effective_date": null,
        "locator": "基本情報・車両紹介",
        "supports": "DC; 110 km/h; E233 technology.",
        "checked": "2026-11-07",
        "rights": "Consulted for facts. No source text or artwork redistributed."
      },
      {
        "id": "e131",
        "title": "相模線E131系車両の概要",
        "publisher": "JR東日本",
        "url": "https://www.jreast.co.jp/press/2021/yokohama/20210917_y1.pdf",
        "source_language": "ja",
        "effective_date": "2021-09-17",
        "locator": "別紙2 comparison table",
        "supports": "Sagami 4 cars 2M2T; Boso/Kashima 2 cars 1M1T; 2950 mm; stainless steel; 110 km/h; SiC VVVF, enclosed induction motors.",
        "checked": "2026-11-07",
        "rights": "Consulted for facts. No source text or artwork redistributed."
      },
      {
        "id": "e721",
        "title": "E721系",
        "publisher": "JR東日本",
        "url": "https://www.jreast.co.jp/train/local/e721.html",
        "source_language": "ja",
        "effective_date": null,
        "locator": "基本情報・車両紹介",
        "supports": "120 km/h; 0,500,1000 subseries, lower passenger floor.",
        "checked": "2026-11-07",
        "rights": "Consulted for facts. No source text or artwork redistributed."
      },
      {
        "id": "ginza",
        "title": "東京メトロ 銀座線1000系 主要諸元",
        "publisher": "東京メトロ",
        "url": "https://www.tokyometro.jp/corporate/enterprise/passenger_rail/cars/working/ginza_1000/pdf/specifications.pdf",
        "source_language": "ja",
        "effective_date": "2023-03-31",
        "locator": "p.1, specification table",
        "supports": "Six cars; 16000 ×2598 ×3465 mm; PMSM, VVVF; 80 km/h design speed; 3.3 km/h/s acceleration.",
        "checked": "2026-11-07",
        "rights": "Consulted for facts. No source text or artwork redistributed."
      },
      {
        "id": "tram",
        "title": "フォトギャラリー",
        "publisher": "鹿児島市交通局",
        "url": "https://www.kotsu-city-kagoshima.jp/cust-photo/",
        "source_language": "ja",
        "effective_date": null,
        "locator": "1000形・7500形 vehicle specification tables",
        "supports": "7501–7504 dimensions and motor rating; 1011 dimensions.",
        "checked": "2026-11-07",
        "rights": "Consulted for facts. No source text or artwork redistributed."
      }
    ]
  },
  "engineering": {
    "record": {
      "scope": {
        "en": "Longitudinal-seat conversion announced November 2023; not every 813 formation.",
        "ja": "2023年11月発表のロングシート化仕様。全編成共通ではない。"
      },
      "facts": [
        {
          "label": {
            "en": "Seat layout",
            "ja": "座席構成"
          },
          "value": {
            "en": "Per three-car set: 120 longitudinal seats plus 28 box seats.",
            "ja": "3両編成でロングシート120席とボックス席28席。"
          },
          "sources": [
            "regional:reg-813-seats"
          ]
        },
        {
          "label": {
            "en": "Capacity gain",
            "ja": "定員の増加"
          },
          "value": {
            "en": "90 additional passengers versus the original cross-seat layout, with the same seat total.",
            "ja": "従来クロスシート車比で座席数を維持し、定員を90人増加。"
          },
          "sources": [
            "regional:reg-813-seats"
          ]
        },
        {
          "label": {
            "en": "Comparison with removed seats",
            "ja": "座席撤去車との比較"
          },
          "value": {
            "en": "48 more seats than the partially seat-removed layout.",
            "ja": "一部座席撤去車より48席多い。"
          },
          "sources": [
            "regional:reg-813-seats"
          ]
        }
      ],
      "insights": [
        {
          "title": {
            "en": "Two different baselines",
            "ja": "比較対象を分けて読む"
          },
          "text": {
            "en": "The 90-person capacity gain and 48-seat gain use different baseline layouts; they are not additive.",
            "ja": "定員90人増と座席48席増は比較対象が異なるため、同じ増分として足し合わせない。"
          },
          "sources": [
            "regional:reg-813-seats"
          ]
        }
      ],
      "gaps": [
        "Primary-source traction motor models, converter generations and braking changes by subseries remain unresolved.",
        "November 2023 conversion plan is not evidence that all planned sets are now converted."
      ]
    },
    "sources": {
      "regional:reg-813-seats": {
        "title": "813系電車ロングシート化します",
        "publisher": "JR九州",
        "url": "https://www.jrkyushu.co.jp/news/__icsFiles/afieldfile/2023/11/30/231130_813_long-seat.pdf",
        "date": "2023-11-30",
        "language": "ja",
        "locator": "座席配置・定員の比較",
        "checked": "2026-11-07"
      }
    },
    "checked": "2026-11-07"
  },
  "literature": []
}