7th International FIG Workshop on 3D Cadastres

The focus of the 7th International FIG Workshop on 3D Cadastres was on adressing the challenges related to the increasing complexity of infrastructures and densely built-up areas, which requires a proper registration of the legal status (private and public), that can only be provided to a limited extent by the existing 2D cadastral registrations...

Modelling 3D legal spaces of Public Law Restrictions within the context of LADM revision

Intense exploitation of land in the vertical direction has brought up complex legal relations between different types of spatial units with various characteristics (e.g., land, marine, air, underground parcels, and infrastructure objects). Therefore, the use of 3D models is required to clearly represent real property and associated Rights,...

BIM Models as Input for 3D Land Administration Systems for Apartment Registration

The growth of cities and the pressure on land worldwide leads to more complex and multilevel structures with different space interrelations. For the registration of complex spaces mostly 2D Land Administration Systems (LAS) are used, while a representation of space in 3D could provide a clearer insight. Concurrently, technological advancements...

Requirements and Opportunities for Web-Based 3D Visualization and Dissemination of Property Valuation Information

The timely and effective dissemination of property values is an essential part of a transparent and efficient property valuation system as property values are required in several land administration processes, such as land acquisition, taxation, transaction, consolidation, readjustment and transformation. In the last decade, a web-based data...

Modelling 3D underground legal spaces in 3D Land Administration Systems

Two dimensional (2D) Land Administration Systems (LASs) do not adequately represent 3D underground objects. It is not easy to identify the owners of these objects and the relations between objects below and above the surface are not explicitly provided. A 3D LAS can however facilitate a better understanding, as well as a more efficient...

4D Musrenbang: Designing User Experience (UX) to Support Public Participation in Spatial Planning for Indonesia

Public participation is an important prerequisite for the success of spatial planning. Technology can help improve the quality and amount of public participation in spatial planning. This paper describes the development of the User Experience (UX) design guideline named ‘4PHASE toolkit’. The toolkit was used to create a web-based GIS prototype,...

A 3D LADM prototype implementation in INTERLIS

The massive developments and uses of high-rise buildings indicate that the demand for use of space above and below the ground surface is rapidly increasing in recent years. The same applies to Greece, where the existing cadastral model does not cover the 3D needs and does not conform to international standards. In this paper, a model is...

Does a Finer Level of Detail of a 3D City Model Bring an Improvement for Estimating Shadows?

3D city models are characterised by the level of detail (LOD), which indicates their spatio-semantic complexity. Modelling data in finer LODs results in visually appealing models and opens the door for more applications, but that is at the expense of increased costs of acquisition, and larger storage footprint. In this paper we investigate...