{
    "data_format": 1,
    "data_url": "https://raw.githubusercontent.com/tyrasd/osm-polygon-features/taginfo/project.json",
    "data_updated": "20160216T165043Z",
    "project": {
        "name": "Polygon Features",
        "description": "Tags used to detect if an OSM object is to be considered a polygon or a line. (As implemented in osmtogeojson and overpass turbo.)",
        "project_url": "https://wiki.openstreetmap.org/wiki/Overpass_turbo/Polygon_Features",
        "contact_name": "Martin Raifer",
        "contact_email": "tyr.asd@gmail.com"
    },
    "tags": [
        {
            "key": "area",
            "value": "no",
            "object_types": [
                "way"
            ],
            "description": "if area=no is present, a closed way is never be considered a polygon."
        },
        {
            "key": "type",
            "value": "multipolygon",
            "object_types": [
                "relation"
            ],
            "description": "Multipolygon relations are always polygons."
        },
        {
            "key": "type",
            "value": "boundary",
            "object_types": [
                "relation"
            ],
            "description": "Boundary relations are always polygons."
        },
        {
            "key": "building",
            "object_types": [
                "area"
            ],
            "description": "if this tag key is present, a closed way will be considered a polygon."
        },
        {
            "key": "highway",
            "value": "services",
            "object_types": [
                "area"
            ],
            "description": "if this tag is present, a closed way will be considered a polygon."
        },
        {
            "key": "highway",
            "value": "rest_area",
            "object_types": [
                "area"
            ],
            "description": "if this tag is present, a closed way will be considered a polygon."
        },
        {
            "key": "highway",
            "value": "escape",
            "object_types": [
                "area"
            ],
            "description": "if this tag is present, a closed way will be considered a polygon."
        },
        {
            "key": "highway",
            "value": "elevator",
            "object_types": [
                "area"
            ],
            "description": "if this tag is present, a closed way will be considered a polygon."
        },
        {
            "key": "natural",
            "object_types": [
                "area"
            ],
            "description": "if this tag key is present, a closed way will be considered a polygon (except for some specific tag values)."
        },
        {
            "key": "natural",
            "value": "coastline",
            "object_types": [
                "way"
            ],
            "description": "doesn't trigger polygon detection, even though other values of the same tag key do."
        },
        {
            "key": "natural",
            "value": "cliff",
            "object_types": [
                "way"
            ],
            "description": "doesn't trigger polygon detection, even though other values of the same tag key do."
        },
        {
            "key": "natural",
            "value": "ridge",
            "object_types": [
                "way"
            ],
            "description": "doesn't trigger polygon detection, even though other values of the same tag key do."
        },
        {
            "key": "natural",
            "value": "arete",
            "object_types": [
                "way"
            ],
            "description": "doesn't trigger polygon detection, even though other values of the same tag key do."
        },
        {
            "key": "natural",
            "value": "tree_row",
            "object_types": [
                "way"
            ],
            "description": "doesn't trigger polygon detection, even though other values of the same tag key do."
        },
        {
            "key": "landuse",
            "object_types": [
                "area"
            ],
            "description": "if this tag key is present, a closed way will be considered a polygon."
        },
        {
            "key": "waterway",
            "value": "riverbank",
            "object_types": [
                "area"
            ],
            "description": "if this tag is present, a closed way will be considered a polygon."
        },
        {
            "key": "waterway",
            "value": "dock",
            "object_types": [
                "area"
            ],
            "description": "if this tag is present, a closed way will be considered a polygon."
        },
        {
            "key": "waterway",
            "value": "boatyard",
            "object_types": [
                "area"
            ],
            "description": "if this tag is present, a closed way will be considered a polygon."
        },
        {
            "key": "waterway",
            "value": "dam",
            "object_types": [
                "area"
            ],
            "description": "if this tag is present, a closed way will be considered a polygon."
        },
        {
            "key": "amenity",
            "object_types": [
                "area"
            ],
            "description": "if this tag key is present, a closed way will be considered a polygon."
        },
        {
            "key": "leisure",
            "object_types": [
                "area"
            ],
            "description": "if this tag key is present, a closed way will be considered a polygon."
        },
        {
            "key": "barrier",
            "value": "city_wall",
            "object_types": [
                "area"
            ],
            "description": "if this tag is present, a closed way will be considered a polygon."
        },
        {
            "key": "barrier",
            "value": "ditch",
            "object_types": [
                "area"
            ],
            "description": "if this tag is present, a closed way will be considered a polygon."
        },
        {
            "key": "barrier",
            "value": "hedge",
            "object_types": [
                "area"
            ],
            "description": "if this tag is present, a closed way will be considered a polygon."
        },
        {
            "key": "barrier",
            "value": "retaining_wall",
            "object_types": [
                "area"
            ],
            "description": "if this tag is present, a closed way will be considered a polygon."
        },
        {
            "key": "barrier",
            "value": "wall",
            "object_types": [
                "area"
            ],
            "description": "if this tag is present, a closed way will be considered a polygon."
        },
        {
            "key": "barrier",
            "value": "spikes",
            "object_types": [
                "area"
            ],
            "description": "if this tag is present, a closed way will be considered a polygon."
        },
        {
            "key": "railway",
            "value": "station",
            "object_types": [
                "area"
            ],
            "description": "if this tag is present, a closed way will be considered a polygon."
        },
        {
            "key": "railway",
            "value": "turntable",
            "object_types": [
                "area"
            ],
            "description": "if this tag is present, a closed way will be considered a polygon."
        },
        {
            "key": "railway",
            "value": "roundhouse",
            "object_types": [
                "area"
            ],
            "description": "if this tag is present, a closed way will be considered a polygon."
        },
        {
            "key": "railway",
            "value": "platform",
            "object_types": [
                "area"
            ],
            "description": "if this tag is present, a closed way will be considered a polygon."
        },
        {
            "key": "area",
            "object_types": [
                "area"
            ],
            "description": "if this tag key is present, a closed way will be considered a polygon."
        },
        {
            "key": "boundary",
            "object_types": [
                "area"
            ],
            "description": "if this tag key is present, a closed way will be considered a polygon."
        },
        {
            "key": "man_made",
            "object_types": [
                "area"
            ],
            "description": "if this tag key is present, a closed way will be considered a polygon (except for some specific tag values)."
        },
        {
            "key": "man_made",
            "value": "cutline",
            "object_types": [
                "way"
            ],
            "description": "doesn't trigger polygon detection, even though other values of the same tag key do."
        },
        {
            "key": "man_made",
            "value": "embankment",
            "object_types": [
                "way"
            ],
            "description": "doesn't trigger polygon detection, even though other values of the same tag key do."
        },
        {
            "key": "man_made",
            "value": "pipeline",
            "object_types": [
                "way"
            ],
            "description": "doesn't trigger polygon detection, even though other values of the same tag key do."
        },
        {
            "key": "power",
            "value": "plant",
            "object_types": [
                "area"
            ],
            "description": "if this tag is present, a closed way will be considered a polygon."
        },
        {
            "key": "power",
            "value": "substation",
            "object_types": [
                "area"
            ],
            "description": "if this tag is present, a closed way will be considered a polygon."
        },
        {
            "key": "power",
            "value": "generator",
            "object_types": [
                "area"
            ],
            "description": "if this tag is present, a closed way will be considered a polygon."
        },
        {
            "key": "power",
            "value": "transformer",
            "object_types": [
                "area"
            ],
            "description": "if this tag is present, a closed way will be considered a polygon."
        },
        {
            "key": "place",
            "object_types": [
                "area"
            ],
            "description": "if this tag key is present, a closed way will be considered a polygon."
        },
        {
            "key": "shop",
            "object_types": [
                "area"
            ],
            "description": "if this tag key is present, a closed way will be considered a polygon."
        },
        {
            "key": "aeroway",
            "object_types": [
                "area"
            ],
            "description": "if this tag key is present, a closed way will be considered a polygon (except for some specific tag values)."
        },
        {
            "key": "aeroway",
            "value": "taxiway",
            "object_types": [
                "way"
            ],
            "description": "doesn't trigger polygon detection, even though other values of the same tag key do."
        },
        {
            "key": "tourism",
            "object_types": [
                "area"
            ],
            "description": "if this tag key is present, a closed way will be considered a polygon."
        },
        {
            "key": "historic",
            "object_types": [
                "area"
            ],
            "description": "if this tag key is present, a closed way will be considered a polygon."
        },
        {
            "key": "public_transport",
            "object_types": [
                "area"
            ],
            "description": "if this tag key is present, a closed way will be considered a polygon."
        },
        {
            "key": "office",
            "object_types": [
                "area"
            ],
            "description": "if this tag key is present, a closed way will be considered a polygon."
        },
        {
            "key": "building:part",
            "object_types": [
                "area"
            ],
            "description": "if this tag key is present, a closed way will be considered a polygon."
        },
        {
            "key": "military",
            "object_types": [
                "area"
            ],
            "description": "if this tag key is present, a closed way will be considered a polygon."
        },
        {
            "key": "ruins",
            "object_types": [
                "area"
            ],
            "description": "if this tag key is present, a closed way will be considered a polygon."
        },
        {
            "key": "area:highway",
            "object_types": [
                "area"
            ],
            "description": "if this tag key is present, a closed way will be considered a polygon."
        },
        {
            "key": "craft",
            "object_types": [
                "area"
            ],
            "description": "if this tag key is present, a closed way will be considered a polygon."
        },
        {
            "key": "golf",
            "object_types": [
                "area"
            ],
            "description": "if this tag key is present, a closed way will be considered a polygon."
        }
    ]
}