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...

From Floor Plans to Condominium Rights Through an Augmented Reality Approach

The creation of a 3D cadaster faces a number of different challenges. Two of them are the collection of data on already existing 3D structures and the visualization for non-experts. The paper uses Augmented Reality (AR) technology for the visualization of models created from plans required in Austria to create condominiums. The advantages of...

Layer approach to ownership in 3D cadastre – a subway case

The paper focuses on approaches to the registration of real property rights in the case of underground or subway tunnels in different EU countries: Austria, Bulgaria, Czech Republic, Croatia, Greece, Poland, Slovenia, and Sweden. The Authors made analysis of the current way of registration of rights to subway tunnels in the chosen countries,...

3D Real Property Legal Concepts and Cadastre: A Comparative Study of Selected Countries to Propose a Way Forward

The concepts of three-dimensional (3D) real property have been the subject of increased interest in land use management and research since the late ‘90s while literature provides various examples of extensive research towards 3D Cadastres as well as already implementing 3D cadastral systems. However, in most countries the legal aspects of 3D...

Visibility Analysis in a 3D Cadastre

The implementation of a 3D cadastre is work-intensive and expensive and legitimation of such expenses is necessary. A legitimate path of argumentation is that 2D systems fail to communicate complex legal situations correctly. Also, additional arguments can help to strengthen the position of 3D cadastres and provide support from other professions...

Combining 3D Cadastre and Public Law – An Austrian Perspective

3D cadastres as currently designed aim at providing information on private rights (ownership, easements, etc.). However, from an economic perspective, public-law restrictions are at least equally important because they might restrict different kinds of use on the land. This has a dramatic impact on the value of the land. Since land value is...

Height Systems for 3D Cadastres

3D systems are built assuming the existence of suitable height reference systems. However, the earth is neither homogeneous nor flat, the plumb lines are curved and not parallel and the definition of height and the implementation of geodetic height systems is complex. 3D cadastral systems have the same problem. Cadastral systems are designed to...