Multi-modal urban public transportation network GIS data modeling——a case study of Guangzhou city

This paper focused on the study of multi-modal public transportation network data and topological relationships representations and integration based on Geographical Information System(GIS).This aimed to provide appropriate data and relationships to allow the development of specialised GIS-based applications and services.The data model was experimented in the city of Guangzhou.The data modal involved different transportation mode network systems,including street network,bus line network,metro network and walking network.An object-oriented modeling method,oriented to transportation geography information spatial characteristics representations,was applied to implement data integration and topological relationship representation of different transportation networks.