Infrastructure Engineering - Research Publications

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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 The adage of a “picture tells a thousand words” is now out of date.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)
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    Seamless SDI Model to Facilitate Spatially Enabled Land-Sea Interface
    SHEIKHESLAMI VAEZ, S ; RAJABIFARD, A ; BINNS, A ; WILLIAMSON, I (Spatial Sciences Institute, 2007)
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    Worldwide impact assessment of spatial data clearinghouses
    Crompvoets, J ; de Bree, F ; van Oort, P ; Bregt, A ; Wachowicz, M ; Rajabifard, A ; Williamson, I ( 2007-08-28)
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    Spatially enabling governments through SDI implementation
    Masser, I ; Rajabifard, A ; Williamson, I (TAYLOR & FRANCIS LTD, 2008)
    Spatially enabled government requires the development of effective SDIs that will support the vast majority of society, who are not spatially aware, in a transparent manner. This paper addresses three strategic challenges arising out of the need of creating this new environment. The first of these is the challenge for more inclusive models of governance given that SDI formulation and implementation involve a very large number of stakeholders from all levels of government as well as the private sector and academia. The second concerns the promotion of data sharing between different kinds of organisation. In some cases this may require new forms of organisation to carry out these tasks. The third challenge relates to the establishment of enabling platforms to facilitate access to spatial data and the delivery of data related services.
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    Spatially Enabled society
    Enemark, S ; Rajabifard, A (Permanent Committee on GIS Infrastructure for Asia and the Pacific, 2008)
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    Developing marine SDI to facilitate marine administration - the spatial dimension
    Vaez, Sheelan ; RAJABIFARD, ABBAS ; WILLIAMSON, IAN ( 2007)
    The coastal zone is a unique geologic, ecological and biological domain of vital importance to a vast array of terrestrial and aquatic life forms - including humankind. Managing the plethora of rights, restrictions and responsibilities of resources within the marine environment and at the littoral zone has created one of the world’s most complex areas of management. Evidently effective administration and management of these areas to meet the economic, social and environmental objectives of sustainable development is required. Until recently spatial information management and administration tools have focussed on the terrestrial environment. Initiatives such as the 3rd United Nations Convention on the Law of the Sea (UNCLOS) and the Sustainable Development Strategy for the Seas of East Asia (SDS-SEA) have bought to attention the importance of sustainable development of the coastal and marine environment. The concepts of marine spatial data infrastructure (SDI), marine cadastre and marine spatial planning have all emerged recently in response to a global realisation of the need to improve management and administration of the marine environment. The underlying theme of these initiatives is the importance of including a spatial dimension to marine administration. A more integrated and holistic approach to management of coastal and marine environments would be facilitated by the extension of the SDI on a seamless platform. This would promote data sharing and harmonisation between large numbers of diverse data holdings and an increasingly large number of initiatives in marine data thus facilitating better decision-making involving marine and coastal spatial information. A seamless SDI platform would enable the utilisation of common boundaries across the coastal zone to ensure no ambiguity exists and no areas are unaccounted for over the coastal interface. This paper discusses the potential for adding a marine dimension to an SDI in the context of seamless model to facilitate marine and coastal zone administration and highlights the need for access to and interoperability of data from marine, coastal and terrestrial environments resulting to the better and more integrated management of coastal zone. Ideally this framework would harmonise the stewardship of and access to marine data and information, thereby facilitating improved management of marine environment.
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    Facilitating land - sea interface through seamless SDI
    Vaez, Sheelan ; RAJABIFARD, ABBAS ; WILLIAMSON, IAN ( 2007)
    The paper discusses coastal zone and spatial information management issues and the potential for adding a coastal dimension to an SDI to facilitate coastal zone management.
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    A formal ontological structure for semantic interoperability of GIS and environmental modeling
    Fallahi, Gholam Reza ; Mesgari, Mohammad Saadi ; RAJABIFARD, ABBAS ; Frank, Andrew U. ( 2008)
    Most of the environmental problems have an obvious spatial dimension and Geographic Information System (GIS) are widely used for solving environmental problems. Service oriented architecture in distributed computing environment with loosely coupled geoservices is a new approach for using GIS services in environmental modeling. The messages exchanged must follow a set of standard protocols which support syntactic interoperability, but do not address application semantics. This article proposes a layer-based ontology with new layers for describing geoservices. The paper gives an ontology of measurements for describing the input and output of field-based geo-services and a core ontology of geo-services containing the domain concepts related to geo-services. An upper ontology adds new general concepts to an existing ontology in order to make an agreement between geo-service developers and environmental modelers. The layer-based structure is the building block for discovering geo-services that support semantic interoperability in GIS and environmental modeling.
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    Facilitating urban management through local SDI case study: the Municipality of Tehran
    OLFAT, HAMED ; RAJABIFARD, ABBAS ; Qureshi, Faisal Masood ; Daneshpour, Seyyed Abdolhadi ( 2009)
    Integrated and sustainable management of cities is one of the most important challenges facing many countries. In this critical societal challenge context, spatial data is key for decision making, planning and management of cities. Thus, in order to have sustainable management and planning there is a need for managers and planners to have access to reliable, seamless and accurate spatial data. However, the current situation regarding availability, integration, sharing and its effective application by planners and decision makers is not very promising in many jurisdictions worldwide including Iran and Pakistan- the two countries under study by authors. Based on current situation, in urban management in Iran there is a need for an agreed platform that facilitates access to and sharing of spatially related data, services and other resources among different disciplines within any jurisdiction. This platform should also address characteristics such as standards and specifications for data collection, management, maintenance and distribution of spatial data. Having said that, in order to facilitate this situation and respond to the needs, many countries are developing Spatial Data Infrastructures (SDIs) which is a concept for facilitating and coordinating of sharing and integrating of data through different political and administrative levels. SDI can be developed at different levels ranging from local to state/provincial, national, regional and global. SDI as a platform can help to reduce the duplication and save resources in data collection which usually occur due to unknown information about availability of datasets among different urban organizations. In addition, organizations involve in urban planning can have access to a comprehensive dataset of the interested area like a city to achieve sustainable urban planning. This paper discusses the importance and benefits of developing SDI as an enabling platform for urban planning and management based on a case study, namely Tehran Municipality in Iran by exploring challenges and issues in accessing and sharing spatial data in this jurisdiction. The paper then presents and discusses the process and experiences of developing an SDI Roadmap for this municipality.