"single-manning" meaning in English

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "single-manning (uncountable)",
      "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"
        }
      ],
      "examples": [
        {
          "ref": "1960 February, A. S. Gillitt, “The operation and maintenance of Belgian main line diesels”, in Trains Illustrated, page 88",
          "text": "There appeared to be no restrictions on single-manning of locomotives in Belgium, but multiple-unit control of two locomotives by one driver has not been adopted; when double-heading is required a driver is put in charge of each locomotive.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Operation by only one person."
      ],
      "id": "en-single-manning-en-noun-Q~qEYqlO",
      "related": [
        {
          "word": "single-manned"
        }
      ],
      "synonyms": [
        {
          "word": "single manning"
        }
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "word": "single-manning"
}

{
  "head_templates": [
    {
      "args": {
        "1": "-"
      },
      "expansion": "single-manning (uncountable)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "single-manned"
    }
  ],
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "English uncountable nouns"
      ],
      "examples": [
        {
          "ref": "1960 February, A. S. Gillitt, “The operation and maintenance of Belgian main line diesels”, in Trains Illustrated, page 88",
          "text": "There appeared to be no restrictions on single-manning of locomotives in Belgium, but multiple-unit control of two locomotives by one driver has not been adopted; when double-heading is required a driver is put in charge of each locomotive.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Operation by only one person."
      ],
      "tags": [
        "uncountable"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "single manning"
    }
  ],
  "word": "single-manning"
}