New Trends in 3D Cadastre Research - a Literature Survey

During the last decade, several literature surveys on trends in 3D property research have been published. The latest publication is Paasch and Paulsson (2021), examining 530 research related publications from 2012 to 2020. It showed that 3D cadastre publications mainly have focused on technical and registration issues, even if there is an increase in research concerning legal and organizational topics compared with a similar survey from 2013. The Paasch and Paulsson (2021) survey identified some 3D cadastre topics that have gained increased focus during the investigated period but were not analysed in detail in the study. These research topics are investigated further in this paper. The topics are analysed in the same manner as in the 2012 and 2021 surveys, i.e. classifying them into Legal, Technical, Registration and Organizational classes. The publications are part of the 2021 study but are analysed more in detail in this paper in relation to some of the topics. This paper is an addition to this study where we have identified areas that we think should be of interest for further research, but not yet investigated in detail. These areas are BIM (Building Information Modelling), 4D cadastre, marine and water applications, and valuation. Out of the 530 publications in the Paasch and Paulsson study, 22 publications were identified as BIM related, 11 as 4D cadastre related, 11 related to marine and water applications, while 8 publications dealt with valuation topics. The paper shows that there seems to be an increased interest for the presented themes, but it is too early to say whether they all are part of trends in 3D cadastre research or whether they are only expressing temporary interests as such for the 3D cadastre community

3D Property Research – a Survey of the Occurrence of Legal Topics in Publications

3D property is an increasingly discussed and researched topic. Several conferences and workshops have contained contributions on this subject and there are often special sessions devoted to it at e.g. FIG conferences. There are also many articles, conference contributions, theses and other publications available that present and discuss 3D property from different aspects. However, many of these conferences and publications seem to focus on technical aspects of 3D property rather than on legal aspects. It even seems that more is written on technical issues and registration than on other equally important issues related to law, organisation, etc. which creates a certain imbalance within the field. The aim of this paper is to investigate the field of 3D property in research, as evidenced by conference papers and other publications, in order to find the distribution of areas of interest and specifically the occurrence of legal aspects. The intention is not to describe any particular 3D property issues or to present a complete survey, but to analyse trends within the field and to contribute to the methodology and structure of 3D research. A case-study was conducted by examining conference papers, journal articles and other publications in English on 3D property within the recent ten year period. The studied publications were placed in four different groups, illustrating different aspects of 3D property, namely legal, technical, registration and organisational issues. The classification was done after analysing the publications by their contents. The total number of studied publications is 105. The results indicate a rather even distribution between three of the four categories, except for organisational aspects, which are in minority. However, when looking from a legal perspective, the legal category is in minority with only 28 publications, in comparison with the total number of the publications in the other three categories, consisting of 77 publications. Thus, although there already exists a foundation of results from research and other works on the legal aspects of 3D property, the authors believe that more work is needed and that more and focused attention should be given to legal aspects of 3D property

Visualisation of 3D Property Units - experiences from a case study in Stockholm, Sweden

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 3D models as part of the formal cadastral property formation procedure

Visualisation of 3D Property Units - experiences from a case study in Stockholm, Sweden

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

Towards Design and Development of a BIM-based 3D Property Formation Process

With the increased interest and demand for 3D property, 3D property formation has shown increased significance. It is important to provide efficient, clear and unambiguous methods to form 3D property units, as well as register 3D property RRRs (rights, restrictions and responsibilities). The 3D property formation process should facilitate solutions to complicated problems within building projects (for example space above and below the ground) and provide secure and lasting rights in complex situations. Therefore, 3D property formation could use the same processes as for the formation of other property units, but adding specific rules and standards concerning the use of 3D models. Building Information Modelling (BIM) contains rich details of building characteristics such as structures, elements, spaces, schedules, etc. that can form the physical models of the 3D cadastre. The 3D property formation process requires that BIM data are exchanged between actors. To model this exchange, we utilize an open BIM process standard Information Delivery Manual (IDM). IDM helps to clarify the detailed property formation process, facilitates actors’ communication, harmonizes different product data models delivered and stored, identifies the results of that activity, as well as improves the management more efficiently and collaboratively. Level of Information Need (LOIN) is a framework that defines the extent and granularity of information, in order to prevent delivery of too much information. The LOIN specifies the granularity of information exchanged in terms of geometrical information, alphanumerical information and documentation, which should be used to specify the information delivery between actors. In this paper, we use LOIN as a basis to specify information requirements according to the 3D property formation purposes, and design a developed process of the Swedish 3D property formation in IDM. In the study, LOIN fulfills the requirements of forming 3D cadastral property in BIM models and harmonizes all involved actors in the whole process in IDM with a more common and standardized approach. The proposed methodology aims to facilitate a standardized and unambiguous digital 3D property formation process on a national level in order to improve and enhance the digital Swedish Cadastral and Land Administration Systems

Co-ownership shares in condominium: A comparative analysis for selected civil law jurisdictions

Condominium is a special and relatively new type of property right emerged in the last century to be a remedy for the management problems in multi-unit buildings. There are many types of condominium regimes, as described in EUI (2005), UNECE (2005) and van der Merwe (2016). The common elements include: (a) Individual right to an apartment, (b) co-ownership (joint ownership) of the common property or the whole property, and (c) membership of an incorporated or unincorporated owners' association (van der Merwe, 2015, p. 5). The ownership shares in the common property are here referred to as co-ownership shares; yet, alternative terms include ownership fraction, condominium share, participation quota, share value, and unit entitlement. Generally, these shares will determine the proportional contribution to the common expenses and the share of common profits, as well as the voting power of each condominium unit owner in the administration of the condominium. The most common approaches to the determination of the co-ownership shares are based on equality, relative size or relative value of each condominium unit, or a combination of such (van der Merwe, 1994, p. 57–58). The literature presents detailed descriptions and comparative analysis related to condominium systems in different jurisdictions (e.g. van der Merwe, 2015; 2016; Paulsson, 2007; EUI, 2005; UNECE, 2005); however, the procedural aspects related to the allotment of co-ownership shares still need to be further investigated. This article aims to describe condominium systems in the Netherlands, Sweden and Turkey, and compare legal provisions and procedures related to the allotment of co-ownership shares in these jurisdictions. The main purpose is to clarify the methodologies behind the determination of the co-ownership shares in national systems to bring new insights to countries, which are trying to revise their national provisions.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Geo Informatio

International Code List Management: The Case of Land Administration

Standardization reduces technical barriers to trade and foster dissemination of innovations. Within the domain of information technology, standardization enhances semantic interoperability of systems and services. In order to achieve the potential of standardization, IT solutions must be localized to adapt to local needs. To reduce localization costs, software developers, but also standards develop and adopt internationalization principles and best practices, cf. the W3C Internationalization (I18n) Activity, the ISO 639 Language Codes, which provides an example for code lists and code list management, and the coding of coordinate reference systems.For the domain of Land Administration, the localization issue extends from language names to the various organizations and institutions dealing with interests in land. Paasch et al (2013) propose code lists as a mean of internationalization by which the classes of the ISO 19152:2012 Land Administration Domain Model (LADM) may be related to the concerned jurisdiction. The issue of code lists has been addressed by the OGC as well, namely in terms of the document 17-050r1 Code List Manifesto by Paul Scarponcini. Motivations for the study include that various OGC standards have encoded enumerations and code lists differently, as realized during the development of the InfraGML standard, which regards land and civil engineering infrastructure facilities, and thus share part of its scope with LADM.Aiming at harmonization of standards within the domain of Land Administration, the present paper proposes a joint management of the code lists which are specified by ISO LADM and by OGC LandInfra / InfraGML, respectively. The FIG motivated the ISO standard LADM and moreover framed research on code lists. It seems therefore appropriate to join with this organization of surveying professionals, also to benefit from sharing of expertise and cost of the management activities. The paper the outlines the tasks of code list management by drawing on the mentioned Code List Manifesto and resuming research supporting code list management, e.g. terminological theory and semantic tools. The setup of a possible code list management system is discussed, and summarized in terms of a draft Memorandum of Understanding.OLD Department of GIS Technolog

Global scientific production on LADM-based research: A bibliometric analysis from 2012 to 2020

Multiple Land Administration Domain Model (LADM) related studies have been carried out in two decades. ISO 19152 LADM is an international standard and an abstract, conceptual model covering the land administration domain (including those over land and water and elements above and below the earth's surface). The LADM is considered an important component for managing and developing land administration systems worldwide. In the context of this study's, scientific publications related to LADM are examined to carry out a bibliometric analysis on LADM research from 2012 to 2020. The extent of this investigation is limited to the Scopus database for scientific publications. All databases belong to the most extensive peer-reviewed summary and citation databases. It is noted that this study is based on the same principles as the research published by Paulsson and Paasch (2015), building on existing knowledge and aiming to add value in support to the current development of Edition II of the LADM. In this study, which covers 2012–2020, 175 LADM related scientific publications were found in the Scopus database. When the distribution of publications in journals is examined, Land Use Policy has the most published manuscripts related to ISO 19152 LADM. This analysis considers author identification, type of paper, organisational issues, and bibliometric analysis components. The analysis considered articles, books, and proceedings directly related to the LADM and included in the Scopus database or conference and workshop proceedings. For this, articles and books were selected from the Scopus database. Also, the proceedings were selected from those presented in the International Federation of Surveyors (FIG) events and workshops on LADM. Overall, this paper aims to arrange and present the global scientific production on LADM-based research.Green Open Access added to TU Delft Institutional Repository 'You share, we take care!' - Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.GIS Technologi

International Code List Management – The Case of Land Administration

Standardization reduces technical barriers to trade and foster dissemination of innovations. Within the domain of information technology, standardization enhances semantic interoperability of systems and services. In order to achieve the potential of standardization, IT solutions must be localized to adapt to local needs. To reduce localization costs, software developers, but also standards develop and adopt internationalization principles and best practices, cf. the W3C Internationalization (I18n) Activity, the ISO 639 Language Codes, which provides an example for code lists and code list management, and the coding of coordinate reference systems. For the domain of Land Administration, the localization issue extends from language names to the various organizations and institutions dealing with interests in land. Paasch et al (2013) propose code lists as a mean of internationalization by which the classes of the ISO 19152:2012 Land Administration Domain Model (LADM) may be related to the concerned jurisdiction. The issue of code lists has been addressed by the OGC as well, namely in terms of the document 17-050r1 Code List Manifesto by Paul Scarponcini. Motivations for the study include that various OGC standards have encoded enumerations and code lists differently, as realized during the development of the InfraGML standard, which regards land and civil engineering infrastructure facilities, and thus share part of its scope with LADM. Aiming at harmonization of standards within the domain of Land Administration, the present paper proposes a joint management of the code lists which are specified by ISO LADM and by OGC LandInfra / InfraGML, respectively. The FIG motivated the ISO standard LADM and moreover framed research on code lists. It seems therefore appropriate to join with this organization of surveying professionals, also to benefit from sharing of expertise and cost of the management activities. The paper the outlines the tasks of code list management by drawing on the mentioned Code List Manifesto and resuming research supporting code list management, e.g. terminological theory and semantic tools. The setup of a possible code list management system is discussed, and summarized in terms of a draft Memorandum of Understanding

3D Cadastre in the Case of Engineering Objects, such as Bridges and Road Viaducts

At present, the implementation of cadastral registration of transport investments (such as railway lines on bridges and on viaducts, roads on viaducts, etc.) is performed in the so-called "layer" system. This means that many objects are constructed at different levels (layers) within the space of a given parcel. Several parties may be interested in developing certain fragments of the parcel space; each of them is interested in acquiring rights only to a specified part of the parcel (its specified layer), in which given investment is implemented by that party. The legal conditions binding in many countries do not allow for implementation of such type investments within the space of a someone else's cadastral parcels, based on the ownership right. This is due to the fact, in accordance with the "superficies solo cedit" rule applicable in many EU countries, the ownership right extends above and below the parcel space and cadastral systems do not allow for vertical division of a real property. The conventional 2D cadastre, which does not allow vertical division of the parcel space, forces an investor to buy a whole parcel or to get other rights which allows using a specified space of someone else's parcel, such as easiment rights. Buying of an entire parcel in which space bridges and road viaducts investments will be performed and not being able to divide the land space vertically makes it practically impossible to sell the parcel under a viaduct because following the rule above the viaduct is part of the land parcel. Therefore, the space is not optimally utilised. The easement right has some disadvantages, as it cannot be encumbered with a mortgage; therefore it is not the basis of crediting a given investment. The 3D cadastre allows delineating 3D parcels (from the space of existing 2D parcels) that cover specified fragments of the space and to relate ownership rights to those delineated fragments. Within a 3D cadastre system, such objects can be registered as separate cadastral objects. This allows for the implementation of a line investment in the above-ground space in a flexible way, i.e. it is possible to get financing of an investment based on the mortgage charge of a 3D property and market transactions of the remaining space after delineation of the 3D parcel, covering the bridge or viaduct. This paper focuses on approaches to registration of real property rights in the case of engineering objects, such as bridges and road viaducts, in different EU countries: Austria, Bulgaria, Czech Republic, Croatia, Greece, Poland, Slovenia and Sweden.The authors review the current solutions for the registration of engineering objects in the cadastre, including its effectiveness in ensuring appropriate property rights to construct and exploit such objects, and make a comparison between the countries