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Emerging road network data management needs data integration which conventional planar road data models are insufficient to support. And the prevalent data models have advantages and disadvantages varying in representation scale. In order to comprehend the user requirements, an integrated road data model for multi-scale transportation applications was introduced, including three topology abstraction...
GIS-T Data Model is the base of the applications of ITS. Road feature is the basic unit to express, store and organize road networks. Comprehending the different user requirement at different representation scales, the feature based multi-level data model for road network is proposed. The data model consists of three levels. The Level-1 expresses the topology structure of road network. The Level-2...
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