Infrastructure Engineering - Research Publications

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    3D Cadastre in Victoria Australia : Converting building plans of subdivision
    Aien, A ; Rajabifard, A ; Kalantari, M ; Williamson, I ; Shojaei, D (Geomares Publishing, 2011-08-01)
    Three-dimensional (3DD) land development is common, especially in urban areas. Management of 3D land rights, restrictions and responsibilities (3D RRRs) is one of the most important challenges in current land-administration systems, most of which are equipped with cadastres able only to maintain information in a 2D spatial information environment.
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    Developing and testing a 3D cadastral data model: a case study in Australia
    Aien, A ; Kalantari, M ; Rajabifard, A ; Williamson, IP ; Shojaei, D (ISPRS Comm V Symposium, 2012-07-16)
    Population growth, urbanization and industrialization place more pressure on land use with the need for increased space. To extend the use and functionality of the land, complex infrastructures are being built, both vertically and horizontally, layered and stacked. These three-dimensional (3D) developments affect the interests (Rights, Restrictions, and Responsibilities (RRRs)) attached to the underlying land. A 3D cadastre will assist in managing the effects of 3D development on a particular extent of land. There are many elements that contribute to developing a 3D cadastre, such as existing of 3D property legislations, 3D DBMS, 3D visualization. However, data modelling is one of the most important elements of a successful 3D cadastre. As architectural models of houses and high rise buildings help their users visualize the final product, 3D cadastre data model supports 3D cadastre users to understand the structure or behavior of the system and has a template that guides them to construct and implement the 3D cadastre. Many jurisdictions, organizations and software developers have built their own cadastral data model. Land Administration Domain Model (DIS-ISO 19152, The Netherlands) and ePlan (Intergovernmental Committee on Surveying and Mapping, Australia) are examples of existing data models. The variation between these data models is the result of different attitudes towards cadastres. However, there is a basic common thread among them all. Current cadastral data models use a 2D land-parcel concept and extend it to support 3D requirements. These data models cannot adequately manage and represent the spatial extent of 3D RRRs. Most of the current cadastral data models have been influenced by a very broad understanding of 3D cadastral concepts because better clarity in what needs to be represented and analysed in the cadastre needs to be established. This paper presents the first version of a 3D Cadastral Data Model (3DCDM_Version 1.0). 3DCDM models both the legal and physical extent of 3D properties and associated interests. The data model extends the traditional cadastral requirements to cover other applications such as urban planning and land valuation and taxation. A demonstration of a test system on the proposed data model is also presented. The test is based on a case study in Victoria, Australia to evaluate the effectiveness of the data model.
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    3D Property Ownership Map Base for Smart Urban Land Administration
    Kalantari, M (FIG (International Federation of Surveyors), 2017)
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    Unfinished business: completing the mudmap on the riverbed - the legal lacuna in the tri-state area of the River Murray (Part 2)
    Park, M. M. ; Williamson, I. P. (Law Society of South Australia, 2008)
    With the approaching centenary of the Victorian-South Australian border litigation, the necessity of restoring and maintaining river flows in the Murray-Darling Basin river system including the equitable allocation of rights to those flows, and the failure of the four states and the Commonwealth to agree on the future co-operative administration of the Basin, the authors offer their resolution of the ‘missing’ border in the tri-state area of Victoria, New South Wales, and South Australia in the locale of Mildura-Wentworth-Renmark where the three states abut. The resolution of the missing border is essential to the proper exercise of spatial or territorial jurisdiction. Although of small consequence for the past 150 years the time is approaching when this issue must be resolved: it is ‘unfinished business’.
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    Unfinished business: completing the mudmap on the riverbed - the legal lacuna in the tri-state area of the River Murray (Part 1)
    Park, M. M. ; Williamson, I. P. (Law Society of South Australia, 2008)
    With the approaching centenary of the Victorian-South Australian border litigation, the necessity of restoring and maintaining river flows in the Murray-Darling Basin river system including the equitable allocation of rights to those flows, and the failure of the four states and the Commonwealth to agree on the future co-operative administration of the Basin, the authors offer their resolution of the ‘missing’ border in the tri-state area of Victoria, New South Wales, and South Australiain the locale of Mildura-Wentworth-Renmark where the three states abut. The resolution of the missing border is essential to the proper exercise of spatial or territorial jurisdiction. Although of small consequence for the past 150 years the time is approaching when this issue must be resolved: it is ‘unfinished business’.
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    New roles of land administration systems
    Williamson, I. P. ; Wallace, J. ( 2007)
    This paper sketches the key issues in the history of land administration in terms relevant to the experiences of countries in the Asia Pacific Region. It is a first step in building a national land administration vision and is influenced by empirical research on European and Australian approaches. The vision is especially influenced by three trends in global land administration theory and practice, especially during the last five years and include: sustainable development; spatial enablement; and theoretical achievements in land administration.The challenges for modern land administration systems and in modern government are presented including the roles of land administration in formalizing land markets, implementing and understanding regulations and restrictions, and changing the nature of ownership. The role of spatial enablement and understanding the potential of iLand, the concept of integrated spatially enabled land information available on the Web, are central to understanding the national vision for land administration in Australia. Finally, future directions within technical and operational issues and collaboration and capacity building are presented to assist creation of a new land management model and national vision for spatially enabled land administration by countries in the APR.
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    Building land markets in the Asia Pacific region
    Williamson, I. P. ; Wallace, J. ( 2007)
    Land markets attract wide participation, all over the globe. Market activities receive intense analysis from economists and bankers, investors and developers, and they interest millions of people. Meanwhile, how to build a land market remains a mystery. Those countries that achieved effective modern land markets have the benefit of well run land administration systems. These systems therefore offer the key to building a market. The problem is that building land administration capacity does not always assist the creation and management of a successful land market. There are two explanations for this. First the complexity of a formal land market is not well understood. Second the different kinds of land administration infrastructures that are needed to support land markets as they develop from simple land trading into complex commodity markets need to be identified and implemented. These issues are explored below. The perspective of this exploration is that of an engineer interested in designing, building and managing the infrastructure needed to support modern land markets.
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    Spatially Enabling Government – an International Challenge
    Williamson, I. P. ; Rajabifard, A. ; Wallace, J. ( 2007)
    The popular use of spatial technologies involves showing images and tracking assets and inventory in an increasing array of instruments, the most common being the ubiquitous mobile phone. These technologies penetrate into even low income poor countries, but their take-up and development concentrates in highly developed countries. This high-end use of these technologies will determine their future. Remarkable as these popular applications are, spatial technologies can also be used in even more dynamic, transformational ways. Transformational use of spatial technologies occurs when they are used to improve business processes of government, and assist delivery of policies for equitable taxation, conservation of natural resources and planning for rational growth. Use of this transformational capacity of spatial technologies in government creates a spatially enabled government (SEG). The major impediment to take-up of spatial information is counter-intuitive. We all use the new technology in our daily lives, but our capacity to understand the power of spatial information is remarkably small. In fact only about 1% of people in any society really understand spatial information with about 5% of people knowing something about the special technology. For 95% of people, spatial information and its supporting technologies is a mystery. Teaching people about spatial information and its technologies is therefore the first task in painting a vision of what is possible. The attractions of spatial technologies lie in how they present information, whether users rely on computers and the Internet, or on communications technologies. The adage of a “picture tells a thousand words” is now out of date. New digital pictures tell many stories, and, if the enabling platform is built, the pictures will become management tools of government. Spatial technologies are moving quickly. In Australia, since October 2006, Google Maps and Google Earth, combined with a geocoded national address
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    Spatial Data Integration Challenges: Australian Case Studies
    MOHAMMADI, H ; RAJABIFARD, A ; BINNS, A ; WILLIAMSON, I (Spatial Sciences Institute, 2007)