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Continuous users’ needs linked to technological advances, current legislation and reporting obligations, and the overall context in terms of geographic information have been promoting a change of the geographical reference information productive system in the National Geographic Institute of Spain (IGN-ES). This change requires reaching a national coordination, meets the requirements of INSPIRE guidelines (Directive Producció2007/2/EC) and being in line with management decisions about geospatial reference information at global level. These requirements imply not only a justification for political, administrative and economic level but also for technical conditions and viability. IGN-ES has launched a new production system for the Geospatial Reference Information (GRI) within settlements theme. In order to meet current and future user’s needs, both internally IGN-ES and externally from different organizations and users, and promote and coordinate this information in terms of national Law 14/2010 (LISIGE), where it is called population entities. In 2012, IGN-ES starts with the geographic data modelling based on user requirements, linking and extending several INSPIRE data specifications (statistical units, demography, cadastral parcel, administrative units and land use) in order to make an application schema aligned to INSPIRE. From 2014, with the definition of the new planning for IGN-ES GRI production starts the production system supported primarily on two criteria: it is based on cadastral parcels and developed by automatic processes. With the aim to provide a high-resolution spatial information, homogeneous nationwide and satisfy the users’ requirements in relation to the spatial management of settlements (spatial planning, urban development, environment protection, statistics, addresses, demography, mapping, etc.). To carry out this work firstly it is developed a methodology to assign automatically the settlement code to the cadaster data, achieving a 70% of success. Secondly a manual revision is necessary in order to solve the remaining data. In parallel, an automatic method was developed for settlement boundaries extraction according to cadaster data, based on the parametrization of urban development (dispersion degree) and spatial analysis of cadaster data aggregation. Finally, the results are stored in a database according to defined technical conditions. This article discusses the work done by the IGN-ES technical working group of settlements, including the proposed data model, the results of the first production phase (automatic and manual processes) and planned work to ensure a coordinated production of the fundamental data set for this GRI theme.
Topic Area: [2.1] Urban and rural sustainability: Smart cities / Smart rural Abstract Type: Oral Presentation
Comments: Geospatial reference data, settlements, INSPIRE, IGN-ES
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