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- Karolina, Larsson, et al.
(författare)
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Visualisation of 3D Property Units - experiences from a case study in Stockholm, Sweden
- 2023
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Ingår i: Proceedings 11th International FIG Land Administration Domain Model / 3D Land Administration Workshop. - Köpenhamn. - 9788793914094 ; , s. 1-14
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Konferensbidrag (refereegranskat)abstract
- This paper focuses on experiences concerning a project aiming at visualisation of three dimensional (3D) property units in Stockholm, Sweden. The Swedish national registration system, the national real property register, includes a textual description as well as a two dimensional map, normally consisting of a scan of the legal map document produced during the property formation process. Today, a 3D-pdf or a BIM model cannot be part of the formal property formation decision and documentation. It can thus be difficult to illustrate 3D real property on just a two-dimensional map.The paper describes a project carried out by Stockholm municipality to visualise 3D property unit volumes within the municipality by combining them with existing 3D city models (including building- and terrain models). The aim is to show and analyse the problems and challenges identified in the project by illustrating what has been done and how the use of 3D real property information can be further developed in the future.The method used in this research is a document study of the project focusing on representation in the digital cadastral index map for 3D real property units as part of the national real property register, as well as associated documentation from other agencies, and by interviewing key persons involved in the project.The project created a local 3D model which is stored in the municipality´s own internal database. Some information was retrieved from the national real property register, such as information on height (lowest and highest) and the horizontal expansion of the real property. Data was then processed and analysed using Feature Manipulation Engine (FME) to create 3D property volumes. The project used in-house software and data as much as possible. The volumes were stored in the municipal database. The 3D volumes could be used as a supplement to the information stored in the national real property register and the cadastral dossiers. The results can be used as a component for the development of a national three-dimensional cadastral index map as well as for enabling 3Dmodels as part of the formal cadastral property formation procedure.
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| 2. |
- Larsson, Karolina, et al.
(författare)
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3D property formation in complex infrastructure- and building projects : Exemplified by the Slussen project in Stockholm
- 2023
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Ingår i: Proceedings of the 11th International Workshop on the Land Administration Domain Model and 3D Land Administration. - Köpenhamn. - 9788793914094 ; , s. 196-216
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- This paper describes the use of 3D real property formation at a major construction site inStockholm, Sweden, project Slussen.Real property formation with complex 3D volumes and numerous real properties andassociated rights, restrictions and responsibilities (RRRs) has to be shown with the realproperties and RRRs in relation to each other. The present legal solutions and documentationthereof are based on analogue documentation (digitalised to pdf) and cannot be attached ase.g. dwg files. Architects and other professionals do not normally have access to the 3D realproperty boundaries in their 3D building models from the beginning of a project and the exactlocations of boundaries are agreed upon during the formation process to achieve as usablesolutions as possible.The aim of this paper is to describe the 3D property formation process when involvingcomplex solutions securing RRRs to solve legal and planning challenges on different levels ofdetail. The paper focuses on the cadastral real property formation procedures using 3Dproperty formation for constructions above and underground, as well as how they areregistered in the national real property register. The paper illustrates a complex 3D propertysolution and adds to the understanding of the challenges of registration and visualisation ofSwedish 3D real property in Stockholm, focusing on legal as well as technical experiences.This research is a document study based on an analysis of the property formation andplanning documentation and processes of a cadastral procedure conducted in the Slussenproject, as well as associated documentation from other agencies, and by interviewing keypersons involved in the project. The paper illustrates the need for a national cadastral indexmap in three dimensions to be used in the formal real property formation procedures, toachieve a comprehensible and correct representation and visualisation of 3D real propertiesand RRRs in Sweden.The results can be used as input in coming property formations of a similar kind, as well as acomponent for the development of a national three-dimensional cadastral index map.Furthermore, the results can be an input to capacity building for the future use of 3D modelsas part of the formal cadastral property formation procedure.
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