Data organization in the vehicle po

Data organization in the vehicle positioning monitoring system is always a difficult and hot issue, and
is also a core problem concerning sound and stable system functions [6]. Relevant vehicle positioning
monitoring data mainly includes the following four categories: first, base map data, including
administrative divisions, residential areas, gas stations, toll stations, overpasses, residential areas, arterial
streets, etc; second, road network data, including road centerline network diagrams, overpasses, scissors
crossing and other road network data