A property graph description of high-quality road network data, such as lanes, roads, and intersections are defined in this standard. Lanes, roads, and intersections within a road network are depicted as nodes, while the connections and relationships between these elements are illustrated by edges in the graph. This standard also defines properties of graph nodes and edges, as well as data types.

This standard defines a property graph description of high-quality road network data, such as lanes, roads and intersections. Thereby, the standard supports highly efficient data storage and retrieval. The standard represents lanes, roads and intersections as nodes in a property graph, while the topology of road network is represented by edges in the property graph. This standard also defines properties of graph nodes and edges, as well as data types, value ranges, and basic access interfaces of these properties.