| Abstract |
The urban road is the foundation of smart city construction, and its successful management benefits the entire city. However, currently, the spatial characteristics of the urban road are relatively simple in a geographic information system (GIS), causing limitations in urban road management. This study analyses the contents and properties of the spatial and temporal objects of urban roads, such as road segments, bridges, tunnels, and road ancillary facilities, and determines their spatial and temporal relationships. Thus, this study constructs a spatio-temporal conceptual data model of the urban road using the unified modeling language. This model provides basic information for an urban road spatial and temporal data in GIS and is also the basis for constructing the urban road logical and physical model. An urban road example is used to demonstrate the model application. © Published under licence by IOP Publishing Ltd. |
