Infrastructure Engineering - Research Publications
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ItemDefining a marine cadastre for AustraliaCOLLIER, P. ; Leahy, F. ; WILLIAMSON, IAN ( 2001)As the world's largest island, Australia has a coastline length of approximately 36,700 km. The nation's relative isolation from its neighbours enables it to claim one of the largest maritime jurisdictions in the world. The ocean territory to which Australia lays claim is about 1.5 times larger than the Australian land mass. Given the diversity and extent of Australia's ocean resources, there is an economic and social need to manage, explore and exploit the nation's ocean territories in a way that will maximise benefit, while at the same time protecting the ocean environment. An essential requirement for the consistent and effective management of the oceans is reliable, comprehensive and accurate spatial information. This introduces the complex issue of defining and quantifying the spatial and temporal interaction of a vast array of rights and responsibilities. Not only are our oceans subject to the interests of a diverse group of individuals and organisations, they are also governed by a complex web of government legislation. International treaties such as the United Nations Convention on the Law of the Sea(UNCLOS) also need to be considered. Many pieces of legislation contain geographical definitions for areas of jurisdiction. Understanding and managing the relationship and interaction between overlapping and sometimes competing rights is a complex problem. The objective behind the development of a marine cadastre is to provide a comprehensive spatial data infrastructure whereby rights, restrictions and responsibilities in the marine environment can be assessed, administered and managed. This paper describes a multi-faceted, collaborative project between the Department of Geomatics, the Australian Surveying and Land Information Group, the Queensland Department of Natural Resources and Mines, and Land Victoria to define the issues relevant to the development of a marine cadastre for Australia.
ItemAssessing Spatial Data Infrastructure Architecture for Integration withWireless Location ServicesSmith, J. ; Kealy, A. ; Williamson, I. P. ( 2001)Spatial Data Infrastructures (SDIs) have been identified as a mechanism through which complete and consistent spatial data sets can be accessed and retrieved. Whilst SDIs have been developing, wireless communication technologies have been undergoing a rapid evolution. The convergence of wireless communications, positioning technology and SDIs are providing new facilities, new applications and as a result, new challenges for spatial data providers and users. To capitalise on the opportunities presented through the merger of these key areas, the design of SDIs may require modification. Naturally, different applications will have different spatial data requirements, however it is envisaged that there will be common infrastructure requirements (such as data sets, query and delivery mechanisms) that will be applicable for a range of wireless applications. One of the most important issues in relation to delivering information to wireless users is that of data currency. It is imperative that a mobile user be provided with accurate, up to date data. Whilst this is also an important issue for non-mobile users, it is particularly important for users 'on the move'. Thus rather than individual organisations duplicating and maintaining data sets, providing access through a standard SDI would be most beneficial. Infrastructure requirements for Australian wireless applications that utilise spatial information will be determined through the development of a personal navigation system for the visually impaired. The accuracy and reliability requirements of a navigation solution for a visually impaired person are much greater than for a sighted person, thus the rigour of the data content and delivery methods is of paramount importance. This paper overviews the components and issues that need to be considered when building wireless applications that utilise location information. The prototype development will also be discussed to highlight the infrastructure requirements necessary for the proposed technology combination.
ItemLocation based services-the underlying technologySmith, J. ; Kealy, A. ; Williamson, I. P. ( 2001)For centuries, people have been concerned with their spatial location and surroundings onEarth. The methods of describing routes and areas of space by one person to another havealways been a function of the available resources. Today these resources include mobilephones, personal digital assistants and palmtop computers, providing people with detailedspatial information whilst 'on the move'.To the Geomatics industry, the potential created by the convergence of wirelesscommunication, positioning technology and Spatial Data Infrastructures (SDIs) is tremendous.It is now possible to deliver relevant information where it is needed most. Time critical andlocation dependent information services have been identified as potentially successfulapplication areas in this domain. Not only will field workers be empowered by such services,but the general citizen will also benefit. There are many examples in Europe and more recentlyin Australia where such benefits are being realised. Most of these examples are termedLocation Based Services (LBS). The underlying technologies of LBS along with their synergywith wireless communication, positioning technology and SDI will be examined.