Infrastructure Engineering - Research Publications
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ItemBridging SDI design gaps(Centre of Geo-Information Technologies (cGIT), 2006)The environment we inhabit is integrated and to properly manage the environment it is necessary to look at all environmental components and making multi-criteria decision about environment mostly needs an integrated view of built and natural environmental components to better interpret it.Despite the integrated nature of environment and requirements of users to integrate different components of environment, information about different elements of environment is being collected and managed by fragmented agencies under different and mostly inconsistent policies and standards to satisfy their own needs –for a single discipline- with little attention to the broad range of users – a multi-disciplinary approach. This fragmentation results in heterogeneity of technical and non-technical issues surrounding integration of datasets.An SDI is an initiative to facilitate the cooperation among all stakeholders and the interaction with standards and technological components and one of its objectives is to facilitate the integration of multi-source spatial data sets.This paper aims to address different issues connected to the integration of multi-source data sets in order to better serve different communities through their SDI initiatives and also a better management and sharing of their spatial data. The paper aims to discuss both technical and non-technical issues related to the integration of multi-source data sets in alignment with an ongoing research project devoted to developing models, guidelines and associated tools to facilitate the integration of multi-source datasets within an SDI.
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ItemThe role of sub-national government and the private sector in future Spatial Data Infrastructures( 2006-08)A Spatial Data Infrastructure (SDI) facilitates and coordinates the exchange and sharing of spatial data between stakeholders in the spatial data community. With this objective in mind, countries throughout the world are developing SDIs to manage and utilise their spatial data assets more effectively. These countries are developing SDIs to assist in various kinds of decision-making at different levels of government jurisdictions that have an important impact within their national boundaries. However, current research shows that SDI is understood and described differently by stakeholders from different disciplines and different jurisdictional levels. Therefore, in many cases SDI initiatives remain very much an innovation even among practitioners. There are still uncertainties regarding the benefits and identities of SDIs, particularly in connection with how they evolve over time to meet user needs.This paper reviews and assesses the development of SDIs throughout the world over the past fifteen years and the leadership role of national governments in SDI creation. This assessment is based on the SDI activities of various jurisdictions including Asia-Pacific, Australia, North America and Europe and research into the worldwide effects of spatial information clearinghouses. This assessment includes a discussion on emerging trends in SDI development, with particular reference to the increasingly important role played by sub-national governments and the private sector within the framework of SDI development. The paper concludes with a discussion of the implications for future SDI development, including the delivery of a virtual world that has a particular focus on facilitating decision making at a community level within a national context.
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ItemAssessing the worldwide comparison of cadastral systems(Elsevier, 2006)There is growing interest internationally in land administration and cadastral systems and especially in their role as part of a national Spatial Data Infrastructure (SDI). The important role the cadastre plays in supporting sustainable development is also well recognised. Both developed and developing countries accept the need to evaluate cadastral systems to help identify areas of improvement and whether their systems are capable of addressing future needs. Countries are continually re-engineering and implementing various aspects of the cadastre, comparing systems and trying to identify best practice within nations of the same socio-economic standing.In order to address this need, members of a team from the Centre for Spatial Data Infrastructures and Land Administration at the Department of Geomatics, the University of Melbourne, with the support of the United Nations Permanent Committee on GIS Infrastructure for Asia and the Pacific (PCGIAP) and the International Federation of Surveyors (FIG), have developed a cadastral template. The template aims to assist the evaluation and benchmarking of cadastral systems and the role they play in spatial data infrastructures.This paper aims to outline the concept and theory behind the cadastral template as well as analysing the results from 34 completed country templates. Several indicators have been used to analyse and benchmark countries cadastral systems, results of which will contribute to an improved understanding of the complex relationship between cadastral, land administration system and National SDI initiatives. This will also enable a worldwide comparison of cadastral systems, forming the basis for best practice and a tool to improve national cadastral systems.
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ItemDiscuss: a soft computing approach tospatial disaggregation in economicevaluation of public policies(Blackwell, 2006)For more than three decades cost-benefit analysis (CBA) has been used in manycountries as an important tool for evaluating public policies. More recently, participationof stakeholders in CBA processes has become an important issue for governments.However, CBA by itself does not provide a good environment for stakeholderparticipation. A major reason for this is the lack of spatial disaggregation intraditional CBA. In order to allow greater public participation, a GIS-based approachis proposed. This approach uses a Geocomputational system, which incorporates softcomputing theory with expert systems in a geographic information systems (GIS)environment. It is designed to generate representations of environmental, economicand social policy outcomes according to the perceptions of the stakeholders and afterthe CBA results have been obtained. The methodology proposed for modellingimpacts in cases where uncertainty exists uses the soft computing theory of fuzzy logicto generate a raster map based on spatial inputs provided by the stakeholders involvedin the decision process. This computer-based system, called DISCUSS (DecisionInformation System for Community Understanding of Spatial Scenarios), is intendedfor situations where the government chooses to evaluate a policy using CBA anddesires to encourage public participation in evaluating the results identified by theeconomic methodology. DISCUSS and the maps that it produces are being testedin a public participation case study with long-term impacts over a large area ofsouth-eastern Australia.
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ItemThe role [of] cadastral data modelling in e-land administration(Centre of Geo-Information Technologies (cGIT), 2005)Enablement of land administration with Information and Communication Technology (ICT) is heading toward e-Land Administration (e-LA): the transformation of land administration through the use of ICT. Existing initiatives include providing land information on line, electronic conveyancing, digital lodgement of survey plans, and online access to survey plan information. Thus far, implementation of these initiatives is isolated in their specific subsystems without reference to the broader land administration system or its core policy function of supporting sustainable development. One solution to isolation is to develop effective communication among the different land administration subsystems by harmonising data and functionalities, so they are capable of being used by all subsystems. The key to harmonisation is data modelling which both recognizes and reengineers existing business processes. Modelling allows every single process in land administration to influence the cadastral data model and vice versa. This paper describes the importance of cadastral data modelling in data management as well as coordination among subsystems in an e-LA.
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ItemBuilding land markets(Elsevier, 2006)A primary driver in land titling and administration improvement is facilitation of a land market. Land markets are difficult to establish and to manage. Titling on its own will not create a land market, nor will a land administration system unless it is connected with the way participants think about and organise their land. Indeed, the difficulty is compounded because very little is available to explain how a land market works, particularly to identify non-technical components essential for market success. This framework article explains land markets in terms of five evolutionary stages. The ingredients of a complex and developed land market, especially social processes and cognitive capacities, are identified.
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ItemDeveloping a platform to facilitate sharing spatial data(Centre of Geo-Information Technologies (cGIT)., 2005)Users of positioning and spatial information services and tools require precise spatial information in real-time and real-world objects. Simply an accurate positioning of a future subdivision is no longer accepted by users, they require it to be visualized as well, in order to take into account outside influences. The capacity to meet such user needs and deliver services and tools within the spatial information market has gone well beyond the ability of single organisations (Rajabifard, et al, 2005a). There is now a wide range of products and services available for a wide range of information technology applications, and hence the development of an enabling platform can facilitate access to data and sharing resources and tools among different practitioners. The creation of an enabling platform for the delivery of these tools and positioning applications will allow users from diverse backgrounds to work together with current technologies to meet the dynamic market place. Up until now, individual jurisdictions within Australia for example have started utilizing different platforms in attempting to create mechanisms for accessing and delivering spatial data and associated applications and tools in a coordinated fashion. This has been done through the use of hierarchies of information, where jurisdictions utilize information both by those within a jurisdictional level as well as those at a higher or lower jurisdictional level. The benefits of this sharing of information have been documented, however they do not necessarily break down the barriers between jurisdictions. Just because different information can be gained about Victorian state for example from different jurisdictional levels, does not mean that the information will necessarily be compatible (it may not be of the same accuracy or have the same specifications, utilize the same symbology, etc) (Rajabifard, et al, 2005b). There is now a need to create a common rail gauge within Australia to aid in implementing initiatives which solve cross jurisdictional and national issues. In order to meet this need, there is a requirement for an enabling platform.
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ItemConsiderations is assessing the potential success of a cadastral or land information management project in developing countries: a case study of the Thailand Land Titling Project( 1990)The Thailand Land Titling Project is undoubtedly a successful project combining technical, institutional, management, legal, training and educational components. It is a joint project by the Royal Thai Government, the World Bank and the Australian International Development Assistance Bureau. It is primarily concerned with the issuing of land titles to all freehold parcels in the Kingdom of Thailand, in addition to undertaking land administration reform, establishing a national valuation system, carrying out urban cadastral mapping for all urban areas in the country and developing a national land information strategy. The paper briefly overviews the project, outlines some of the lessons from the project and the significant socio-economic benefits of the project. However the paper concentrates on attempting to evaluate the reasons for the success of the project. In particular it argues that the institutional, economic, social, legal and political environment at the time of project preparation and implementation was conducive to its success. Such an evaluation is necessary to place the lessons, achievements and benefits of the Land Titling Project in perspective for others who may wish to translate these experiences to their own countries or jurisdictions. By drawing on the experiences of the Land Titling Project and other projects with which the author has been involved, an attempt is made to generalize the considerations and necessary environment for success of similar projects.
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ItemLand information management at the World Bank( 1991-03)The surveying, mapping and land information management industry in both the government and private sectors in Australia has increasingly promoted the export of its expertise to developing countries during the 1980s, particularly in the land administration area. This activity has brought the industry in closer contact with organizations such as the World Bank with a view to increasing Australia’s share of the international consulting market. As a consequence of these developments and the extensive expertise in land management within the World Bank, in both the operational and research areas, the author spent six months undertaking research in land information management in developing countries in the World Bank during the latter half of 1989. This paper summarizes his impressions and experiences from this period but in particular highlights the role and importance of surveying, mapping and land information management as perceived by the World Bank. A major conclusion of the paper is that the surveying profession together with its institutions, systems and technologies is ‘alive and well’ and has a very sound and important future in the developing world.
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ItemNo easy road: accountability in modern education for professional surveyors( 1991)In any economy where public expenditure on higher education accounts for a sizeable proportion of Gross Domestic Product (GDP), equity in spending and equality of access have long been considered to be crucial issues in the political arena. They still are. However, we now find that it is concerns about the efficiency of higher education provision, and especially its quality, form, content and relevance, which are now expressed most stridently. In turn, this has led to demands for more coherent planning and management control systems in higher education generally within which the accountability of the institution, the professional school and the individual academic is a sine qua non. Then, in the space of a decade or so, the well-defended vocational walls which have surrounded land information professionals, especially land surveyors, have begun to be breached in many parts of the world. Primarily, this process is due to the advent of new information and positioning systems, including Land Information Systems (LIS), Geographical Information Systems (GIS) and Global Positioning Systems (GPS) over which surveyors have no particular lien. This has been coupled with other powerful external forces such as professional deregulation. Quite simply, there is a new game, new turf and new players. Things are not what they used to be - nor will they ever return to what they were. Unfortunately, many wish that they would and a laager mentality is still alive and well in the worlds of surveying academe and professional surveying practice alike. Yet, some individuals and institutions have, with not a little delight, welcomed the opportunities which change invariably brings and, moreover, achieved success. This success is due, in no small way, to the vigorous adoption of a variety of innovative measures of modern academic management including the process of proper accountability and the introduction of performance indicators. There is also the matter of a growing and increasingly vociferous consumer lobby. In a number of countries, including Australia, New Zealand and Great Britain, tertiary students have had to sustain substantial increases in direct charges for their courses. In practice, the alternative cost-recovery mechanisms range across the charging spectrum and include: full-cost fees, supplementary top-up fees for certain courses, repayable loans and inflation-indexed graduate taxes. Yet, whatever the charging mechanism, it would be surprising if the natural querulousness of students regarding their education anyway were not intensified by the forceful expression of dissatisfaction if they consider the education they receive as representing poor value for money. It would also be surprising if there is not increased pressure from both public-sector and private-sector employers of surveying graduates for greater accountability to be demonstrated by those involved in professional surveying education. Many of these employers have been put through an "economic wringer" by governments set on obtaining efficiency and effectiveness in the national economy. Moreover, to survive in the medium term and long term, they know that they need that essential input which comes from fresh, active, and capable young minds able to respond to the new challenges, not those of twenty years ago. To put it bluntly, academic accountability is not just a fashionable word. Increasingly, it is a powerful and necessary, albeit emotive, issue for governments, tertiary-education institutions, individual academics, tax-payers and students alike. The reality of the academic environment today is that the introduction of accepted management practices - strategic plans, performance appraisal and business plans to name but three - are all becoming part of the daily routine. However, a major problem which accompanies the introduction of increased accountability for the tertiary-education sector in Australia lies with the lack of proper provision, within the new performance appraisal process, for financial rewards for individual high-achieving academics. This contrasts markedly with the private sector and, indeed, with some parts of government where performance payments are the norm. Thus, in a sense, the tertiary-education sector has been both squeezed by government and also put through the "economic wringer" as well. Moreover, this has happened at a time in Australia when academic salaries have fallen, in relative terms, well behind teachers and other related professionals. The net, and worrying, result is that many of the best people are leaving universities, while at the same time it is very difficult to attract suitable professionals into the tertiary-education sector. The purpose of this paper is four-fold. First, we outline what is meant by accountability. Then, we will explore the manner in which accountability fits into the rapidly-changing world of higher-education management. The third objective is to examine the various inter-mingled relationships and responsibilities of the major role-players in professional surveying education. Finally, we consider the need for and introduction of suitable performance indicators to provide an essential underpinning to the academic accountability process. We offer no apology for using the management practices at the University of Melbourne as an example throughout the paper. Quite simply, it is sensible to comment on that which one knows well. Moreover, in dealing with some issues of potential contention and sensitivity, it seemed more prudent to remain reasonably "close to home". Naturally, it is recognised that similar processes would be found in other institutions to varying degrees.