{
  "contentStorage": "postgres",
  "title": "Line 6 (Chongqing Rail Transit) · History",
  "description": "Line 6 (Chongqing Rail Transit) is a metro line, opened on 28 September 2012.",
  "url": "/en/concepts/chongqing-metro-line-6/history.html",
  "entity": {
    "customFields": [
      {
        "key": "line_opened",
        "value": "28 September 2012"
      },
      {
        "key": "line_structure",
        "value": "underground, elevated"
      },
      {
        "key": "line_status",
        "value": "In operation"
      }
    ],
    "id": "concept_chongqing_metro_line_6",
    "type": "concept",
    "title": "Line 6 (Chongqing Rail Transit)",
    "slug": "chongqing-metro-line-6",
    "aliases": [
      "重庆地铁6号线"
    ],
    "summary": "Line 6 (Chongqing Rail Transit) is a metro line, opened on 28 September 2012.",
    "status": "published",
    "categories": [
      "category-transit"
    ],
    "tags": [
      "tag-metro"
    ],
    "sources": [
      {
        "id": "cptond",
        "title": "CPTOND-2025 — Wang, Liang 等 (CC BY 4.0)",
        "url": "https://doi.org/10.6084/m9.figshare.29377427.v2",
        "locator": "Chongqing/chongqing_metro_routes.shp; DBF rows 18,37; status=1"
      },
      {
        "id": "wikidata",
        "title": "Wikidata Q5931449",
        "url": "https://www.wikidata.org/wiki/Q5931449"
      },
      {
        "id": "zhwiki",
        "title": "重庆地铁6号线（维基百科）",
        "url": "https://zh.wikipedia.org/wiki/%E9%87%8D%E5%BA%86%E8%BD%A8%E9%81%93%E4%BA%A4%E9%80%9A6%E5%8F%B7%E7%BA%BF",
        "locator": "信息框"
      }
    ],
    "createdAt": "2026-10-25",
    "updatedAt": "2026-10-25",
    "revision": 1,
    "body": "## Overview\n\nLine 6 (Chongqing Rail Transit) is a metro line, opened on 28 September 2012[^wikidata].",
    "url": "/concepts/chongqing-metro-line-6.html",
    "lang": "en",
    "availableLangs": [
      "zh",
      "en"
    ],
    "conceptKind": "metro_line"
  },
  "entities": null,
  "lang": "en",
  "availableLangs": [
    "zh",
    "en"
  ],
  "infoFields": [
    {
      "key": "concept_kind",
      "label": "Concept kind",
      "value": "Metro line"
    },
    {
      "key": "aliases",
      "label": "Aliases",
      "value": "重庆地铁6号线"
    },
    {
      "key": "line_opened",
      "label": "Opened",
      "value": "28 September 2012"
    },
    {
      "key": "line_structure",
      "label": "Structure",
      "value": "underground, elevated"
    },
    {
      "key": "line_status",
      "label": "Status",
      "value": "In operation"
    }
  ],
  "pagination": {
    "page": 1,
    "pageSize": 50,
    "total": 0,
    "pageCount": 0
  }
}