Infrastructure Engineering - Research Publications
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ItemA new vision on cadastral data model( 2006)Land administration systems are evolving towards an integrated land management paradigm designed to support sustainable development. In this paradigm, land administration delivers four functionalities: land mapping, land registration, land valuation and land development, each with specific data elements, with the cadastral data model at the core. Cadastral data modelling potentially plays a key role in both data and business management in modern land administration systems. However, some modifications to existing data models could potentially improve their capacity to deliver sustainability. Firstly, the existing role of land parcels and properties as core building blocks in land administration systems can be significantly extended to make the cadastral fabric available to assist management of a wider range of rights, restrictions and responsibilities by using the concept of legal property objects: an entity defined by a law or regulation which relates to a physical space on, below or above the earth. This can be interpreted as a new land related commodity, land parcel or a property. Secondly, although land parcel and property identifiers are key elements of interoperability within land administration subsystems, the paper argues that they have not yet given appropriate emphasis in cadastral data models. Among the identifiers, spatial identifiers can potentially simplify data exchange and work flows among land administration functionalities on a much wider basis. Finally, the paper discusses technical issues raised by changing the cadastral model: the advantages and disadvantages of spatial identifiers, possibilities for spatially presenting rights restrictions and responsibilities, and consistency between various legal property objects.
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ItemThe Evolution of Modern Cadastres(International Federation of Surveyors, 2001)
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ItemUnited Nations-FIG Bathurst Declaration on Land Administrationfor Sustainable Development: Development and Impact( 2002)The joint United Nations-FIG Bathurst Declaration on Land Administration forSustainable Development was prepared at an International Workshop on CadastralInfrastructures for Sustainable Development organized jointly by the FIG and theUnited Nations in Bathurst, New South Wales, Australia, on 18-22 October 1999.The Declaration was presented formally together with position papers prepared asbackground for the Workshop at an International Conference in Melbourne, Australia,on 25-27 October 1999. The Workshop and Conference, together with the resultingDeclaration, were part of the Work Plan of Commission 7 (Cadastre and LandManagement) and were three years in the planning.The paper will review the activities leading up to the Workshop, Conference anddevelopment of the Declaration, and will discuss the impact of the Declaration.Following on from the Workshop and Conference, presentations were made at variousUnited Nations conferences as well as the FIG General Assembly. In addition therehave been numerous workshops and conference spawned by the Declaration. Thepaper will also look to the future to consider how the Bathurst Declaration can be builtupon to the benefit of all countries as well as professional surveyors. Importantly thepaper will discuss the impact of the overriding outcome from this initiative in that ithas stated a clear relationship between land administration and sustainabledevelopment.