{

  "minzoom": 4,

  "layout": {

    "visibility": "visible"

  },

  "maxzoom": 11,

  "filter": [

    "all",

    [

      "==",

      "type",

      "trunk"

    ]

  ],

  "type": "line",

  "source": "osm",

  "id": "roads_trunk_z4",

  "paint": {

    "line-color": "rgba(160, 152, 176, 1)",

    "line-width": {

      "stops": [

        [

          5,

          0.2

        ],

        [

          7,

          0.3

        ],

        [

          8,

          0.5

        ],

        [

          10,

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        ]

      ]

    }

  },

  "source-layer": "transport_lines"

}