Abstract
Abstract. Digital data production possibilities have developed with the emerging technologies, and it has become possible to use different data formats together. The usability of three-dimensional (3D) data on various application areas has increased with the multidimensional use of geographic data in established information systems, for 3D visualization, presentation, and analysis. Topography-related analyzes such as digital elevation models, digital terrain models, slope maps and visibility maps can be made from geographic data sets produced in 3D. In addition, the use of 3D data in Building Information Modeling (BIM) has added various innovations for geographic data analysis. In this study, a geographic database was established by taking the vector data produced in the 3D Cadastre project that was carried out by the General Directorate of Land Registry and Cadastre as an example. Data obtained from photogrammetry and architectural projects were used in accordance with the OGC CityGML standard. After creating 3D building database in GIS environment, as result of various visualization and analysis techniques, the contributions of this project to BIM were revealed for various applications such as real estate valuation, disaster management, renewable energy, 3D city models, and smart city projects.
Highlights
With the increase of the possibilities in the production of geographical data and using it in different applications, geographic data has started to be used in a large extent activity carried out in many fields, from scientific research to applications
In the information systems established in line with these basic objectives where sustainability exists, its usability has increased in application areas for 3D visualization, presentation, and analysis
In this context, Building Information Modelling (BIM) concept have been proposed which is constituted according to interdisciplinary work conditions, which enables seeing the problems beforehand and can contribute to developing solutions
Summary
With the increase of the possibilities in the production of geographical data and using it in different applications, geographic data has started to be used in a large extent activity carried out in many fields, from scientific research to applications. The need for digital data and the usability of different data formats have been increasing with the developing technologies and the awareness of multidisciplinary projects. Management of buildings throughout their lifecycles starting from their construction can be carried out more and more effectively by means of information technologies. In this context, Building Information Modelling (BIM) concept have been proposed which is constituted according to interdisciplinary work conditions, which enables seeing the problems beforehand and can contribute to developing solutions. Traditional cadastral systems generally provide only two-dimensional (2D) legal and geometric information about property units, today’s valuation practices would benefit significantly from threedimensional (3D) information in order better to estimate and explain values of property units (Kara et al, 2019)
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