Infrastructure Engineering - Research Publications

Permanent URI for this collection

Search Results

Now showing 1 - 5 of 5
  • Item
    Thumbnail Image
    A new vision on cadastral data model
    Kalantari, Mohsen ; RAJABIFARD, ABBAS ; WALLACE, JUDE ; WILLIAMSON, IAN ( 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.
  • Item
    Thumbnail Image
    Evaluation of land administration systems
    STEUDLER, DANIEL ; RAJABIFARD, ABBAS ; Williamson, Ian P. ( 2004)
    Currently there are no internationally accepted methodologies to evaluate and compare the performance of land administration systems. This is partly because land administration systems are in constant reform, and probably more importantly, they represent societies’ different perceptions of land. This paper describes the development of a framework to measure and compare the performance of land administration systems. The research is of particular relevance since it develops a management model which links the operational aspects of land administration with land policy.
  • Item
    Thumbnail Image
    Spatial Data Infrastructure to Facilitate Coastal Zone Management
    STRAIN, LM ; RAJABIFARD, A ; WILLIAMSON, IP (Coastal CRC, 2004)
  • Item
    Thumbnail Image
    Making the SDI concept relevant to Asia-Pacific countries: the PCGIAP experience
    HOLLAND, PETER ; WILLIAMSON, IAN ; RAJABIFARD, ABBAS ; Manning, John ( 2005)
    Development of regional spatial data infrastructures (SDI) is one of the distinctive features ofthe last decade. This is mainly due to the need for seamless consistent spatial data beyondnational boundaries to support decision-making at a multi-national level. The development ofthese regional initiatives began with the creation of regional SDI coordination groups such asthe Permanent Committee for GIS Infrastructure for Asia and the Pacific (PCGIAP), formedin 1995 under the auspices of the United Nations Regional Cartographic Conference for Asiaand the Pacific (UNRCC-AP).The aims of the PCGIAP are to maximise the economic, social and environmental benefits ofgeographic information in accordance with Agenda 21 by providing a forum for nations fromthe Asia and Pacific region (the largest region in the world) to:Share experiences and cooperate in the development of a regional SDI;Contribute to the development of the global SDI; and,Participate in any other form of activity such as education, training, and technologytransfer at different jurisdictional levels.Over the past ten years, the PCGIAP has confronted a number of issues associated withbuilding a regional SDI. The group has also assisted member nations in their national SDIinitiatives.This paper describes some of the experiences of the PCGIAP, in particular:The establishment of a new geodetic datum for the region;The benchmarking of cadastral systems;The conceptualization of a framework for marine zone administration in the future; and,The strategic issues confronting the PCGIAP at the start of its 2nd decade of operation.
  • Item
    Thumbnail Image
    Spatially referenced legal property objects
    Kalantari, M ; Rajabifard, A ; Wallace, J ; Williamson, I (ELSEVIER SCI LTD, 2008-04-01)