{
  "contentStorage": "postgres",
  "title": "Paris Metro Line 1 · Versions",
  "description": "Paris Metro Line 1 connects La Défense–New Arc de Triomphe with Château de Vincennes. Opened in 1900, it is the oldest and busiest line in the entire network.",
  "url": "/en/concepts/paris-metro-line-1/versions.html",
  "entity": {
    "customFields": [
      {
        "key": "line_opened",
        "value": "July 19, 1900"
      },
      {
        "key": "line_length",
        "value": "16.5 kilometers"
      },
      {
        "key": "line_termini",
        "value": "La Défense–Grande Arche ↔ Château de Vincennes"
      },
      {
        "key": "line_structure",
        "value": "Underground"
      },
      {
        "key": "line_max_speed",
        "value": "70 kilometers per hour"
      },
      {
        "key": "line_status",
        "value": "In operation"
      },
      {
        "key": "line_operator",
        "value": "RATP"
      },
      {
        "key": "line_owner",
        "value": "RATP"
      },
      {
        "key": "line_rolling_stock",
        "value": "MP05、MP14"
      }
    ],
    "id": "concept_paris_metro_l1",
    "type": "concept",
    "title": "Paris Metro Line 1",
    "slug": "paris-metro-line-1",
    "summary": "Paris Metro Line 1 connects La Défense–New Arc de Triomphe with Château de Vincennes. Opened in 1900, it is the oldest and busiest line in the entire network.",
    "status": "published",
    "categories": [
      "category-transit"
    ],
    "tags": [
      "tag-metro"
    ],
    "sources": [
      {
        "id": "wiki_ligne_1_du_m_c3_a9tro_de_paris",
        "title": "Ligne 1 du métro de Paris — Wikipédia",
        "url": "https://fr.wikipedia.org/wiki/Ligne_1_du_m%C3%A9tro_de_Paris"
      },
      {
        "id": "ratp",
        "title": "RATP Group — RATP en Île-de-France",
        "url": "https://ratpgroup.com/the-ratp-group/entities/ratp"
      }
    ],
    "createdAt": "2026-10-28T00:00:00+08:00",
    "updatedAt": "2026-10-28T00:00:00+08:00",
    "updatedBy": "user:admin",
    "revision": 7,
    "body": "## Overview\n\nLine 1 opened on July 19, 1900, for the World's Fair, running across the main east-west axis of Paris and passing many iconic buildings[^wiki]. It is approximately 16.5 kilometers long and is the line with the highest passenger traffic in the entire network.\n\n## History\n\n- 1900: The section from Porte Maillot to Vincennes opened;\n- 1934: Extended west to Pont de Neuilly, 1992: extended to La Défense–Grande Arche;\n- 2007–2012: Achieved full automated operation (MP05 type, later supplemented with MP14 type)[^wiki].\n\n## Major Stations\n\nLa Défense–Grande Arche, Charles de Gaulle–Étoile, Concorde, Louvre–Rivoli, Châtelet, Hôtel de Ville, Bastille, [[place_paris_gare_de_lyon|Gare de Lyon, Paris]], Nation, Château de Vincennes.\n\n## Operations\n\n- Operator: RATP[^ratp]\n- Trains: MP05, MP14 (rubber-tired)\n- Service hours: approximately 5:30–1:15 the next day (extended to around 2:15 on Friday to Sunday evenings)",
    "url": "/concepts/paris-metro-line-1.html",
    "lang": "en",
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    "conceptKind": "metro_line"
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  "versions": [
    {
      "revision": 7,
      "updatedAt": "2026-10-28T00:00:00+08:00",
      "message": "当前版本",
      "hasSnapshot": true,
      "url": "/en/concepts/paris-metro-line-1/at/7.html"
    }
  ],
  "lang": "en",
  "availableLangs": [
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    "de",
    "en",
    "fr",
    "ja",
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  "infoFields": [
    {
      "key": "concept_kind",
      "label": "Concept kind",
      "value": "Metro line"
    },
    {
      "key": "line_opened",
      "label": "Opened",
      "value": "July 19, 1900"
    },
    {
      "key": "line_length",
      "label": "Length",
      "value": "16.5 kilometers"
    },
    {
      "key": "line_termini",
      "label": "Termini",
      "value": "La Défense–Grande Arche ↔ Château de Vincennes"
    },
    {
      "key": "line_structure",
      "label": "Structure",
      "value": "Underground"
    },
    {
      "key": "line_max_speed",
      "label": "Maximum speed",
      "value": "70 kilometers per hour"
    },
    {
      "key": "line_status",
      "label": "Status",
      "value": "In operation"
    },
    {
      "key": "line_operator",
      "label": "Operator",
      "value": "RATP"
    },
    {
      "key": "line_owner",
      "label": "Owner",
      "value": "RATP"
    },
    {
      "key": "line_rolling_stock",
      "label": "Rolling stock",
      "value": "MP05、MP14"
    }
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