"hallway track" meaning in English

{
  "etymology_text": "In reference to track (“a themed set of talks within a conference”), and the fact that people may meet informally in hallways.",
  "forms": [
    {
      "form": "hallway tracks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "hallway track (plural hallway 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": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "The informal networking and socializing that takes place at a conference."
      ],
      "id": "en-hallway_track-en-noun-cMSJMW9L",
      "links": [
        [
          "informal",
          "informal"
        ],
        [
          "networking",
          "networking"
        ],
        [
          "socializing",
          "socialize"
        ],
        [
          "conference",
          "conference"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-æk"
    }
  ],
  "word": "hallway track"
}

{
  "etymology_text": "In reference to track (“a themed set of talks within a conference”), and the fact that people may meet informally in hallways.",
  "forms": [
    {
      "form": "hallway tracks",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "hallway track (plural hallway tracks)",
      "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",
        "Pages with 1 entry",
        "Pages with entries",
        "Rhymes:English/æk",
        "Rhymes:English/æk/3 syllables"
      ],
      "glosses": [
        "The informal networking and socializing that takes place at a conference."
      ],
      "links": [
        [
          "informal",
          "informal"
        ],
        [
          "networking",
          "networking"
        ],
        [
          "socializing",
          "socialize"
        ],
        [
          "conference",
          "conference"
        ]
      ]
    }
  ],
  "sounds": [
    {
      "rhymes": "-æk"
    }
  ],
  "word": "hallway track"
}