Working Group - Joint Commission 3 and 7
3D Cadastres
Policy Issues
During the recent years 3D Cadastre has matured. The increasing
complexity of infrastructures and densely built-up areas require a
proper registration of the legal status (private and public), which can
be provided only to a limited extent by the existing 2D cadastral
registrations. Addressing this challenge has been the main goal of the
International Federation of Surveyors (FIG) joint commission 3 ‘Spatial
Information Management’ and commission 7 ‘Cadastre and Land Management’
Working Group on 3D Cadastres. The FIG Working Group uses the concept of
3D Cadastres with 3D parcels in the broadest possible sense: 3D parcels
include land and water spaces, both above and below surface. The level
of sophistication of a 3D Cadastre in a specific country will in the end
be based on the user needs, land market requirements, legal framework,
and technical possibilities.
In the foreword of the FIG Publication ‘Best
Practices 3D Cadastres’, FIG Past President Chryssy Potsiou comments
that “we, as geo-information professionals, vendors, providers,
managers, professionals as well as academics and researchers, are
expected to develop services and tools to deliver administrative,
economic and social benefits. Our colleagues, representatives of
business, academia and public administration; managers of geodata from
all over the world; young entrepreneurs and creative minds; all are
working toward the same goal, trying to increase the “value” of geodata
for the people. They do so in order to get more benefit, more
transparency, more safety, more environmental quality, more growth, more
fairness, more efficiency in governance of urban areas, more smart
cities. No reality has a more direct bearing on the subject of 3
dimensional geo-information and cadaster than the growth of large
cities, especially in the developing countries of the world, and
especially in the phenomenon of the mega cities.”
As cities grow they grow vertically as well as horizontally thereby
introducing the element of the third dimension. Recent innovative
thinking has introduced the concept of a multidimensional multipurpose
land information system. It is a logical extension of the 3D cadastre
concept, by adding the time dimension to the equation. In a discussion
of “cost effectiveness” one must consider time, that 4th dimension that
we speak of. In time, we are usually referring to land titles history
and time-sharing rights, or how the shape and size of land parcels and
cadastral objects change over time, but it is also a matter of time-cost
in the construction of the cadastre, as well as the time/property value
relationship. As the great cities of the world become mega, the value of
land and its improvements grow as well. Thus the time/value relationship
and its impact on land administration become central elements, and the
need for continuing research on fundamental policy issues of technical
administrative, legal and financial aspects of land administration will
grow.
The on-going process of improving land administration systems is
crucial. It responds to the need for international research in building
effective land administration infrastructures with modern information
technology that will support the 2030 global policy goals for
sustainable development. Reference:
Best Practices 3D Cadastres - Extended version, Editor: Peter van
Oosterom, International Federation of Surveyors, Copenhagen, Denmark,
March 2018 (ISBN 978-87- 92853-64-6, ISSN: 2311-8423)
Chair
Prof. Peter van Oosterom, the Netherlands
P.J.M.vanOosterom[at]tudelft.nl
Prof. Alias Abdul Rahman, Malaysia
alias[at]utm.my
Specific topics
Contribute to the upcoming revision of ISO19152:2022 (LADM) by
further developing the 3D aspects in this international standard;
e.g. provide a more formal taxonomy of different types of 3D parcels
(spatial units), define 3D spatial profiles,
Relate to Marine Cadastre with 3D volumetric parcels and their
(international) boundary descriptions,
Collect and exchange experiences of operational 3D cadastral systems
(law, organization, technology),
3D Cadastre in megacities, often in Latin America (Brazil, Mexico),
Asia (China, Malaysia, Korea, Singapore) and Africa (Nigeria),
3D Cadastre usability studies, web dissemination and 3D cartography
(including VR and AR techniques), • Deep integration of 3D space and
time (4D Cadastre) for more robust foundation,
New data acquisition techniques, including Voluntary Geographic
Information (VGI) based 3D data collection,
3D Cadastre (and 3D Topography) as input for more fair valuation as
basis for taxation, and
3D Cadastre as part of the full life cycle in 3D (spatial planning
and development), linking BIM/IFC and 3D Cadastres.
What we are working on -
Conduct and analyze the new term 3D Cadastres
questionnaire 2018-2022
Produce a special issue on 3D Cadastres in the
scientific journal ISPRS IJGI (2019/2020)
