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City Roadnet

Hearder: map metadata​

  • name (string): Map name, to identify the semantics of data collections.
  • date (string): Map data creation time.
  • north (float): The coordinate of the northern boundary of the Map data.
  • south (float): The coordinate of the southern boundary of the Map data.
  • east (float): The coordinate of the eastern boundary of the Map data.
  • west (float): The coordinate of the western boundary of the Map data.
  • projection (string): PROJ.4 projection string to support the conversion of xy coordinates to other coordinate systems.

Junction: road intersection​

  • id (int): Junction ID.
  • lane_ids (list[int]): IDs of all driving and pedestrian lanes belonging to this junction.

Lane: driving and walking lanes​

  • id (int): Lane ID.
  • type (int): Lane type (1: Driving | 2: Pedestrian).
  • turn (int): Turn type (1: straight | 2: left | 3: right | 4: around).
  • max_speed (float): Maximum speed limit (m/s).
  • length (float): Length of lane centerline (m).
  • width (float): Lane width.
  • center_line (list[XYPosition]): Lane centerline shape.
  • predecessors (list[LaneConnection]): ID and connection type of predecessor lanes. For lanes within a junction, there is at most one predecessor lane. For LANE_TYPE_DRIVING, the connection type must be LANE_CONNECTION_TYPE_TAIL. For LANE_TYPE_WALKING, both connection types are possible.
  • successors (list[LaneConnection]): ID and connection type of successor lanes. For lanes within a junction, there is at most one successor lane. For LANE_TYPE_DRIVING, the connection type must be LANE_CONNECTION_TYPE_HEAD. For LANE_TYPE_WALKING, both connection types are possible.
  • left_lane_ids (list[int]): Lane IDs of the adjacent lanes on the left, arranged from closest to furthest.
  • right_lane_ids (list[int]): Lane IDs of the adjacent lanes on the right, arranged from closest to furthest.
  • parent_id (int): The road/intersection ID to which the lane belongs.
  • aoi_ids (list[int]): AOI IDs connected to the lane.
  • shapely_xy (shapely.geometry.LineString): Shape of lane centerline (in xy coordinates).
  • shapely_lnglat (shapely.geometry.LineString): Shape of lane centerline (in latitude and longitude).

Road​

  • id (int): Road ID.
  • lane_ids (list[int]): Driving and pedestrian lane IDs that the road contains.
  • external["highway"] (string): Road class labels in OSM.
  • external["name"] (string): Road name (not necessarily available).

AOI: Area of Interest​

  • id (int): AOI ID.
  • positions (list[XYPosition]): Shape of polygon.
  • area (float): Area.
  • external["population"] (int): population from WorldPop.
  • driving_positions (list[LanePosition]): Connection points to driving lanes.
  • walking_positions (list[LanePosition]): Connection points to pedestrian lanes.
  • driving_gates (list[XYPosition]): Position on the AOI boundary corresponding to the connection point to driving lanes.
  • walking_gates (list[XYPosition]): Position on the AOI boundary corresponding to the connection point to pedestrian lanes.
  • land_use (Optional[int]): Landuse type (5: Commercial land | 6: Industrial, mining and warehousing land | 7: Residential land | 8: Public management and public service land | 10: Transportation land | 12: Others).
  • poi_ids (list[int]): Contained POI IDs.
  • shapely_xy (shapely.geometry.Polygon): Shape of polygon (in xy coordinates).
  • shapely_lnglat (shapely.geometry.Polygon): Shape of polygon (in latitude and longitude).

POI: Point of Interest​

  • id (int): POI ID.
  • name (string): POI name.
  • category (string): POI category code.
  • position (XYPosition): POI position.
  • aoi_id (int): AOI ID to which the POI belongs.
  • external["tencent_poi_id"] (string): POI ID in Tencent map.