Cadastral data as a source for 3D indoor modelling. (November 2020)

• Record Type: Journal Article
• Authors: Tekavec, Jernej; Lisec, Anka
• Is Part Of: Land use policy. Volume 98(2020)
• Publication Date: 2020-11
• Subjects: IndoorGML -- 3D cadastre -- Real property -- Floor plan -- 3D modelling; Land use -- Periodicals; Land use -- Government policy -- Periodicals; Sol, Utilisation du -- Périodiques; Sol, Utilisation du -- Politique gouvernementale -- Périodiques; Electronic journals; 333.7305
• DOI: 10.1016/j.landusepol.2019.104322
• Languages: English
• ISSNs: 0264-8377

Abstract

Highlights: Acquisition of indoor spatial data is technically challenging, time consuming and expensive. Cadastral systems contain official data that follows a specific data model with nationwide coverage. Several cadastral systems store data on buildings that can be used in the process of 3D indoor modelling. The usage of existing data on buildings for 3D indoor modelling can reduce the need for indoor spatial data acquisition. Future 3D cadastre has potential to provide indoor spatial data, useful for many applications, including indoor navigation. Current cadastral data models should be analysed and assessed to provide quality information for decision making. Abstract: Despite the rapid development of indoor spatial data acquisition technology, there are currently no solutions that enable large-scale indoor spatial data acquisition due to several limiting factors that characterize the indoor space. This fact, together with the rapidly growing need for indoor models, is the main motivation for our research. The focus is on the study of the appropriateness of existing cadastral data for 3D indoor modelling. Within the study, a framework for 3D indoor modelling has been developed, comprising a chain of processes, starting from initial cadastral data and ending with the OGC IndoorGML compliant document. The process chain is divided into three parts, which are described individually and supported by UML activity diagrams. The Slovenian Building Cadastre data represents the basis for the framework design and data assessment. The IndoorGML standard is used for final outputs, as it provides a standardized data model for the representation and exchange of indoor spatial information designed for indoor navigation and location-based services. The data storage options using a spatially enabled database are presented for storing 2D and 3D geometries. The stored data enables fully automatic IndoorGML document generation on request, while also taking advantage of all spatial database functionalities. The proposed approach is software independent and can be implemented with various spatially enabled software packages. In addition to 3D indoor data modelling, the framework represents a comprehensive method for assessing the usability of input data for the purpose of 3D indoor modelling. The assessment is done for the case of the Slovenian Building Cadastre. The assessment of the cadastral data suitability for 3D indoor modelling can be used for decisions regarding future steps towards a multi-purpose 3D real property cadastre. The presented concept can be applied in many countries worldwide that have a similar condominium registration system.