"smart motorway" meaning in English

{
  "forms": [
    {
      "form": "smart motorways",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "smart motorway (plural smart motorways)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "British English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Transport",
          "orig": "en:Transport",
          "parents": [
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A section of motorway that uses active traffic management (ATM) techniques to increase capacity by use of variable speed limits and hard-shoulder running at busy times."
      ],
      "id": "en-smart_motorway-en-noun-bzFjhrBG",
      "links": [
        [
          "transport",
          "transport"
        ],
        [
          "increase",
          "increase"
        ],
        [
          "capacity",
          "capacity"
        ],
        [
          "variable",
          "variable"
        ],
        [
          "speed limit",
          "speed limit"
        ],
        [
          "hard-shoulder",
          "hard shoulder"
        ]
      ],
      "raw_glosses": [
        "(UK, transport) A section of motorway that uses active traffic management (ATM) techniques to increase capacity by use of variable speed limits and hard-shoulder running at busy times."
      ],
      "related": [
        {
          "word": "smart lane"
        }
      ],
      "synonyms": [
        {
          "word": "managed motorway"
        }
      ],
      "tags": [
        "UK"
      ],
      "topics": [
        "transport"
      ],
      "wikipedia": [
        "smart motorway"
      ]
    }
  ],
  "word": "smart motorway"
}

{
  "forms": [
    {
      "form": "smart motorways",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "smart motorway (plural smart motorways)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "smart lane"
    }
  ],
  "senses": [
    {
      "categories": [
        "British English",
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "en:Transport"
      ],
      "glosses": [
        "A section of motorway that uses active traffic management (ATM) techniques to increase capacity by use of variable speed limits and hard-shoulder running at busy times."
      ],
      "links": [
        [
          "transport",
          "transport"
        ],
        [
          "increase",
          "increase"
        ],
        [
          "capacity",
          "capacity"
        ],
        [
          "variable",
          "variable"
        ],
        [
          "speed limit",
          "speed limit"
        ],
        [
          "hard-shoulder",
          "hard shoulder"
        ]
      ],
      "raw_glosses": [
        "(UK, transport) A section of motorway that uses active traffic management (ATM) techniques to increase capacity by use of variable speed limits and hard-shoulder running at busy times."
      ],
      "synonyms": [
        {
          "word": "managed motorway"
        }
      ],
      "tags": [
        "UK"
      ],
      "topics": [
        "transport"
      ],
      "wikipedia": [
        "smart motorway"
      ]
    }
  ],
  "word": "smart motorway"
}