{

  "id": "roads_primary",

  "type": "line",

  "source": "osm",

  "source-layer": "transport_lines",

  "minzoom": 9,

  "filter": [

    "all",

    [

      "in",

      "type",

      "primary"

    ],

    [

      "!=",

      "tunnel",

      1

    ]

  ],

  "layout": {

    "visibility": "visible"

  },

  "paint": {

    "line-color": "rgba(210, 147, 142, 1)",

    "line-width": {

      "stops": [

        [

          9,

          1

        ],

        [

          11,

          3

        ],

        [

          13,

          3.5

        ],

        [

          14,

          4.5

        ],

        [

          15,

          6

        ],

        [

          16,

          10

        ],

        [

          17,

          11

        ],

        [

          18,

          13

        ]

      ]

    }

  }

}