"reserved track" meaning in English

{
  "forms": [
    {
      "form": "reserved tracks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "reserved track (countable and uncountable, plural reserved tracks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with topic categories using raw markup",
          "parents": [
            "Entries with topic categories using raw markup",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English terms with non-redundant non-automated sortkeys",
          "parents": [
            "Terms with non-redundant non-automated sortkeys",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Rail transportation",
          "orig": "en:Rail transportation",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "text": "The tramway along the Belgian North Sea coast is mostly reserved track.",
          "type": "example"
        }
      ],
      "glosses": [
        "On a tramway, a section of track which is not laid in a street. The track can be on an alignment alongside the street or road, or follow the alignment of an old railway."
      ],
      "id": "en-reserved_track-en-noun-K0kr9Tba",
      "links": [
        [
          "tramway",
          "tramway"
        ],
        [
          "section",
          "section"
        ],
        [
          "track",
          "track"
        ],
        [
          "laid",
          "laid"
        ],
        [
          "street",
          "street"
        ],
        [
          "alignment",
          "alignment"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "wikipedia": [
        "reserved track"
      ]
    }
  ],
  "word": "reserved track"
}

{
  "forms": [
    {
      "form": "reserved tracks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
        "1": "~"
      },
      "expansion": "reserved track (countable and uncountable, plural reserved tracks)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English entries with topic categories using raw markup",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with non-redundant non-automated sortkeys",
        "English terms with usage examples",
        "English uncountable nouns",
        "en:Rail transportation"
      ],
      "examples": [
        {
          "text": "The tramway along the Belgian North Sea coast is mostly reserved track.",
          "type": "example"
        }
      ],
      "glosses": [
        "On a tramway, a section of track which is not laid in a street. The track can be on an alignment alongside the street or road, or follow the alignment of an old railway."
      ],
      "links": [
        [
          "tramway",
          "tramway"
        ],
        [
          "section",
          "section"
        ],
        [
          "track",
          "track"
        ],
        [
          "laid",
          "laid"
        ],
        [
          "street",
          "street"
        ],
        [
          "alignment",
          "alignment"
        ]
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "wikipedia": [
        "reserved track"
      ]
    }
  ],
  "word": "reserved track"
}