node

node

• 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)
• path node.csv
• schema
  • missingValues ['NaN', '']
  • primaryKey ['node_id']
  • foreignKeys
  • [1]
    • fields ['zone_id']
    • reference
    • resource zone
    • fields ['zone_id']
  • [2]
    • fields ['parent_node_id']
    • reference
    • resource
    • fields ['node_id']
  • fieldsMatch subset

name	type	description	constraints	categories
node_id	any	Primary key	{'required': True}
name	string
x_coord	number	Coordinate system specified in config file (longitude, UTM-easting etc.)	{'required': True}
y_coord	number	Coordinate system specified in config file (latitude, UTM-northing etc.)	{'required': True}
z_coord	number	Optional. Altitude in short_length units.
node_type	string	Optional. What it represents (intersection, transit station, park & ride).
ctrl_type	string	Optional. Intersection control type - one of ControlType_Set.		['none', 'yield', 'stop', '4_stop', 'signal']
zone_id	any	Optional. Could be a Transportation Analysis Zone (TAZ) or city, or census tract, or census block.
parent_node_id	any	Optional. Associated node. For example, if this node is a sidewalk, a parent_nodek_id could represent the intersection it is associated with.