Infrastructure Engineering - Research Publications
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ItemObject-oriented concepts for software development and conceptual modelling in GIS and surveying( 1993)Recent years have seen a growing research interest amongst Information Technology professionals for Object Oriented Programming Systems (OOPS) and Object Oriented Geographic Information Systems (OOGIS). The nature of this research for the 'classical' surveyor demands a move away from the 'comfort zone' of Surveying Techniques, Mapping and LIS/GIS into the more fundamental areas of Computing Science. This move is essential for a better understanding of the necessary data modelling and general object-oriented concepts for Information Systems in general, and LIS/GIS more specifically. The aim of this paper is to give an overview of this relatively new and specialised field for the Surveying professional interested in GIS issues.
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ItemThe Bangkok Land Information System Project: past and future( 1993)Most cities in the developing world are expanding rapidly and are usually the “engines” of economic development in their respective countries. Yet the quality of life for the inhabitants is deteriorating together with the urban environment. The services and facilities that are essential for the city to operate are not coping with the rapid growth. At the same time the ability to raise sufficient taxes, equitably and efficiently, is severely limited because of lack of basic land information. In these circumstances, cities are turning to land information systems (LIS) as one possibility that may contribute to solving some of these problems. Bangkok, with a population of 10 million, is one such city. This paper reviews a pilot project to develop a LIS for the city. It reviews the major justification for a LIS, looks at the objectives of the project and how those objectives were met. Lessons from the project are described in detail. The paper describes a conceptual model and a strategic framework for a future LIS. Even though the paper is directed at cities in the developing world, the experiences from the project should be of interest to any person involved in designing, building or operating a LIS for a large metropolis.
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ItemMagic revisited: the object-oriented solution to a cadastral maintenance problem( 1993)This paper has evolved from the ongoing research in the area of "Optimising, Maintaining and Updating the Spatial Accuracy of Digital Cadastral Data Bases", a paper published earlier in The Australian Surveyor [Hesse et al. 1990]. This paper gives additional background information for the process described in the first paper and describes new findings in form of an object-oriented software implementation. The concepts of this relatively new software development approach are examined and their advantages for cadastral modelling and software creation are demonstrated. The resultant software prototype, programmed in Smalltalk/V286, has been implemented and tested at the Department of Surveying and Land Information, The University of Melbourne. Future trends are discussed with special emphasis on the rapidly changing hardware and software platforms, their impact on cadastral and LIS issues and the challenges ahead for the continuing education of Land Information professionals.
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ItemThe Authoritative Topographic-Cartographic Information System (ATKIS)( 1993)Recent years have seen an added emphasis in Geographic Information Systems (GIS) on better conceptual data modelling and data transfer standards. A major achievement in this area is the United States Spatial Data Transfer Standard (SDTS). This standard represents one of many worldwide attempts to standardise the way in which geographic information is modelled and transferred. It is currently being reviewed for adoption in Australia. In a previous paper [Hesse and Williamson, 1993], the authors questioned the appropriateness of such an approach and suggested alternative approaches which should be considered to better reflect Australasian needs. This paper describes an interesting and different alternative from Germany, the Authoritative Topographic-Cartographic Information System (ATKIS), together with a working implementation of the model using an object-oriented software system.
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ItemThe role of land and geographic information systems in economic development and environmental management: a developing country perspective( 1993)Economic development and environmental management are often in conflict, particularly in developing countries. This paper examines two projects in Thailand as case studies to show that the use of land and geographic information systems can contribute to both objectives. The paper briefly describes the concept and the role of land and geographic information systems, and looks at their application, primarily in the urban context. The paper discusses the two major limiting factors in developing appropriate systems in both the developed and developing countries; institutional arrangements at a government level and appropriate education programs.The first project, the Thailand Land Titling Project, is concerned with reforming the land titling and land administration system for the whole of the country. The second project, the Bangkok Land Information System Project, was a three year project completed in 1992 to examine the feasibility of developing a land information system for the City of Bangkok, a city with a population of approximately 10 million.