Model razvoja katastra nepremičnin v večnamenski 3D-kataster : doktorska disertacija
The real property cadastre development model towards a multipurpose 3D cadastre : doctoral dissertation

slovenian

2021

3D analyses   3D cadastre   3D modelling   buildings   Built Environment   database   doctoral thesis   geodesy   multipurpose cadastre   navigation

Univerza v Ljubljani, Fakulteta za gradbeništvo in geodezijo

Societal and technological development, together with rapid urbanisation, has contributed to the growing complexity of land use. Traditional land cadastral systems, based on 2D-models of real property units, have limited capabilities for modelling and spatial delineations of rights, restrictions, and responsibilities (RRR). Particularly in an urban environment, there is an increasing requirement for the vertical delineation of the space and 3D modelling of real property units to which RRRs are related. Therefore, the focus of modern cadastral systems is on the support of the 3D data models and technologies, which enable efficient modelling of complex RRR situations. This doctoral dissertation is focused on the technical aspects of multipurpose 3D cadastres and is limited to buildings. First, the concept of a multipurpose 3D cadastral model was developed, following the LADM international standard for land administration domain and linked to standards for spatial data (IFC, CityGML, IndoorGML). This linking enables the usage of 3D-cadastral data in other domains and is possible mainly due to the indoor spaces being the core element of the proposed 3D-cadastral data model. Based on the analysis of the existing 2D cadastral data on buildings, we assessed data usability for 3D modelling based on the developed concept. We developed the process for obtaining the indoor connectivity graph based on the extraction of topological relationships between 3D geometries of indoor spaces aiming to contribute to the multifunctionality of cadastral systems (e.g., for indoor navigation). The lack of 3D cadastral datasets is addressed by procedural modelling, which provides the simulation of large-scale 3D cadastral datasets. The simulated dataset allows the execution and evaluation of 3D spatial analyses. The presented research suggests that the available technologies for 3D spatial data processing, storage, and maintenance already exist and make possible the development of various solutions. However, much research is still needed to enable the operational introduction of 3D cadastre. Our research has also proved that properly structured 3D-cadastral data could be used for applications beyond the land administration domain. This doctoral thesis thus introduces new knowledge that will contribute to the ongoing developments of 3D cadastral systems.

07.06.2021