node.schema.json

{
    "primaryKey": "node_id",
    "missingValues": [
        "NaN",
        ""
    ],
    "fieldsMatch": "subset",
    "foreignKeys": [
        {
            "fields": "zone_id",
            "reference": {
                "resource": "zone",
                "fields": "zone_id"
            }
        },
        {
            "fields": "parent_node_id",
            "reference": {
                "resource": "",
                "fields": "node_id"
            }
        }
    ],
    "fields": [
        {
            "name": "node_id",
            "type": "any",
            "description": "Primary key",
            "constraints": {
                "required": true
            }
        },
        {
            "name": "name",
            "type": "string",
            "description": ""
        },
        {
            "name": "x_coord",
            "type": "number",
            "description": "Coordinate system specified in config file (longitude, UTM-easting etc.)",
            "constraints": {
                "required": true
            }
        },
        {
            "name": "y_coord",
            "type": "number",
            "description": "Coordinate system specified in config file (latitude, UTM-northing etc.)",
            "constraints": {
                "required": true
            }
        },
        {
            "name": "z_coord",
            "type": "number",
            "description": "Optional. Altitude in short_length units."
        },
        {
            "name": "node_type",
            "type": "string",
            "description": "Optional. What it represents (intersection, transit station, park & ride)."
        },
        {
            "name": "ctrl_type",
            "type": "string",
            "description": "Optional. Intersection control type - one of ControlType_Set.",
            "categories": [
                "none",
                "yield",
                "stop",
                "4_stop",
                "signal"
            ]
        },
        {
            "name": "zone_id",
            "type": "any",
            "description": "Optional. Could be a Transportation Analysis Zone (TAZ) or city, or census tract, or census block."
        },
        {
            "name": "parent_node_id",
            "type": "any",
            "description": "Optional. Associated node. For example, if this node is a sidewalk, a parent_nodek_id could represent the intersection  it is associated with."
        }
    ],
    "name": "node.schema.json",
    "description": "A list of vertices that locate points on a map. Typically, they will represent intersections, but may also represent other points, such as a transition between divided and undivided highway. Nodes are the endpoints of a link (as opposed to the other type of vertex, location, which is used to represent points along a link)",
    "$schema": "https://datapackage.org/profiles/2.0/tableschema.json"
}