"four-tracking" meaning in English

{
  "head_templates": [
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      "expansion": "four-tracking (uncountable)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
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          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Four",
          "orig": "en:Four",
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            "Fundamental"
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          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Rail transportation",
          "orig": "en:Rail transportation",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1960 June, “Talking of trains: Sunday on the G.N. line”, in Trains Illustrated, page 322",
          "text": "Arlesey: Demolition of Three Counties station in connection with four-tracking through Arlesey.",
          "type": "quotation"
        },
        {
          "ref": "2020 August 12, “Network News: Release of £589 million kick-starts Trans-Pennine Route upgrade”, in Rail, page 9",
          "text": "DfT said the £589m that has been released will be used on design and enabling works for TRU. This includes partial electrification, a new through platform at Huddersfield, and around eight miles of extra four-tracking.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Provision of four running lines on a stretch of railway track, usually two in each direction."
      ],
      "id": "en-four-tracking-en-noun-wBbxO9RU",
      "links": [
        [
          "rail transport",
          "rail transport"
        ],
        [
          "running line",
          "running line"
        ]
      ],
      "raw_glosses": [
        "(rail transport) Provision of four running lines on a stretch of railway track, usually two in each direction."
      ],
      "related": [
        {
          "word": "four-tracked"
        }
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "rail-transport",
        "railways",
        "transport"
      ],
      "translations": [
        {
          "code": "de",
          "lang": "German",
          "sense": "(rail transport) provision of four running lines",
          "word": "viergleisiger Ausbau"
        }
      ]
    }
  ],
  "word": "four-tracking"
}

{
  "head_templates": [
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      "expansion": "four-tracking (uncountable)",
      "name": "en-noun"
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  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "four-tracked"
    }
  ],
  "senses": [
    {
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        "English entries with incorrect language header",
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        "English uncountable nouns",
        "en:Four",
        "en:Rail transportation"
      ],
      "examples": [
        {
          "ref": "1960 June, “Talking of trains: Sunday on the G.N. line”, in Trains Illustrated, page 322",
          "text": "Arlesey: Demolition of Three Counties station in connection with four-tracking through Arlesey.",
          "type": "quotation"
        },
        {
          "ref": "2020 August 12, “Network News: Release of £589 million kick-starts Trans-Pennine Route upgrade”, in Rail, page 9",
          "text": "DfT said the £589m that has been released will be used on design and enabling works for TRU. This includes partial electrification, a new through platform at Huddersfield, and around eight miles of extra four-tracking.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Provision of four running lines on a stretch of railway track, usually two in each direction."
      ],
      "links": [
        [
          "rail transport",
          "rail transport"
        ],
        [
          "running line",
          "running line"
        ]
      ],
      "raw_glosses": [
        "(rail transport) Provision of four running lines on a stretch of railway track, usually two in each direction."
      ],
      "tags": [
        "uncountable"
      ],
      "topics": [
        "rail-transport",
        "railways",
        "transport"
      ]
    }
  ],
  "translations": [
    {
      "code": "de",
      "lang": "German",
      "sense": "(rail transport) provision of four running lines",
      "word": "viergleisiger Ausbau"
    }
  ],
  "word": "four-tracking"
}