"block section" meaning in English

{
  "forms": [
    {
      "form": "block sections",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "block section (plural block sections)",
      "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": "topical",
          "langcode": "en",
          "name": "Rail transportation",
          "orig": "en:Rail transportation",
          "parents": [
            "Transport",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1962 October, “Talking of Trains: The collisions at Connington”, in Modern Railways, page 232",
          "text": "\"Permissive\" working allows more than one train to be in a block section at one time but trains must be run at low speed in order to stop on sight behind the train in front. Such working is often authorised to allow freight trains to \"bunch\" together to await a path through a bottleneck instead of being strung out over several block sections, as would be necessary if absolute working were in force.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "In railway signalling, a section of track on which, in normal circumstances, only one train is allowed at one time."
      ],
      "id": "en-block_section-en-noun-4MjV-qNh",
      "links": [
        [
          "rail transport",
          "rail transport"
        ]
      ],
      "raw_glosses": [
        "(rail transport) In railway signalling, a section of track on which, in normal circumstances, only one train is allowed at one time."
      ],
      "topics": [
        "rail-transport",
        "railways",
        "transport"
      ]
    }
  ],
  "word": "block section"
}

{
  "forms": [
    {
      "form": "block sections",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "block section (plural block sections)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "en:Rail transportation"
      ],
      "examples": [
        {
          "ref": "1962 October, “Talking of Trains: The collisions at Connington”, in Modern Railways, page 232",
          "text": "\"Permissive\" working allows more than one train to be in a block section at one time but trains must be run at low speed in order to stop on sight behind the train in front. Such working is often authorised to allow freight trains to \"bunch\" together to await a path through a bottleneck instead of being strung out over several block sections, as would be necessary if absolute working were in force.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "In railway signalling, a section of track on which, in normal circumstances, only one train is allowed at one time."
      ],
      "links": [
        [
          "rail transport",
          "rail transport"
        ]
      ],
      "raw_glosses": [
        "(rail transport) In railway signalling, a section of track on which, in normal circumstances, only one train is allowed at one time."
      ],
      "topics": [
        "rail-transport",
        "railways",
        "transport"
      ]
    }
  ],
  "word": "block section"
}