Infrastructure Engineering - Research Publications

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    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.
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    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.
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    Spatial Data Infrastructure to Facilitate Coastal Zone Management
    STRAIN, LM ; RAJABIFARD, A ; WILLIAMSON, IP (Coastal CRC, 2004)
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    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.
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    3D visualisation of cadastre
    Shojaei, David ; RAJABIFARD, ABBAS ; Kalantari, Mohsen ; BISHOP, IAN (Institution of Surveyors Victoria, 2013)
    The importance of managing stratified ownership land rights, restrictions and responsibilities (RRRs) are increasing due to population growth and land shortage, particularly in urban areas. As a result, stakeholders are looking for ways in order to manage land and property information more efficiently. Current approaches for managing and visualising land ownership rights are not efficient in very dense and complex urban areas. (From Introduction)
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    Structured approach to land issues through SES elements
    STEUDLER, DANIEL ; RAJABIFARD, ABBAS ( 2013)
    In order to respond to economic, social and environmental challenges, societies need sound and reliable information about their resource "land". The foremost important data set – before taking any strategic or operational decisions – is about who owns a particular piece of land. Such information is to be provided by well-organized and efficient systems such as land registration and cadastre, which are core elements of a "land administration" system. Land administration systems themselves can be considered as the basic documentation layer serving "land management" with relevant information to carry out land related activities such as land-use planning, land consolidation and other land related implementation policies. Landownership information in this context is very crucial as things always happen on somebody's land; land ownership is not the sole information though, but it is more often than not at the core of the solution. In order to take benefit on a macro-economic level of spatial or location-based information, data needs to be organized in such a way that it can be integrated and shared among stakeholders. Interoperability is key to make best use of geographic information. This can be achieved by establishing a spatial data infrastructure, which observes three conditions that will allow it to be operated in either a centralized or decentralized federated environment.
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    AAA land information: accurate, assured and authoritative
    WILLIAMSON, IAN ; RAJABIFARD, ABBAS ; Kalantari, Mohsen ; WALLACE, JUDE ( 2012)
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    National land information infrastructure through a collaborative framework
    Marwick, Brian ; RAJABIFARD, ABBAS ; Kalantari, Mohsen ; WILLIAMSON, IAN (International Federation of Surveyors (FIG), 2012)
    Australia is being faced with issues which demand a national focus. These issues include natural resource management, land markets, trading in commodities such as water and carbon, and the development of national policies for housing and infrastructure. Businesses also are demanding a more national approach as an increasing number of businesses now operate nationally. This is reflected in the Australian Bureau of Statistics figures which show the number of businesses operating in all states and territories increased by 70% between 2003 and 2007. Over the past several years considerable effort has been directed by the Australian Government towards the development of a “seamless economy” to improve productivity across its federated system of government. In this environment, Land administration in Australia is also jurisdictionally based with no national infrastructure capable of delivering the land information necessary to meet Australia’s needs. In the past, this jurisdictional based approach to land administration has satisfactorily served Australia in an environment where the vast amount of service delivery by both business and government was state focused. Each jurisdiction has taken advantage of the ongoing technological developments to enhance their respective systems and it would appear that many of the needs at a jurisdictional level continue to be met. Whilst land administration has not featured specifically in this reform several of the nominated projects involved land in some form. To respond to the national drivers, this paper aims to introduce a collaborative framework for the implementation of a national land administration infrastructure which relies on the state and territory based systems as its primary source of information.
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    Spatial needs of societies
    STEUDLER, DANIEL ; RAJABIFARD, ABBAS (International Federation of Surveyors (FIG), 2012)
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    The role of land administration, land management and land governance in spatially enabled societies
    STEUDLER, DANIEL ; RAJABIFARD, ABBAS (International Federation of Surveyors (FIG), 2012)
    Over the last 15-20 years, the topic of cadastre and land registration has been discussed extensively. The FIG-statement on the cadastre (FIG, 1995) established that the "cadastre assists in the management of land and land use, and enables sustainable development and environmental protection". In the 1990s the UN-ECE (1996) coined the term "land administration" in order to express the broader need and use of land information for managing the land as an asset. The Bathurst Declaration concluded in 1999 that sustainable development is the key driver influencing the humankind to land relationship and that it needs sound land administration (UN-FIG, 1999).