Visual impact analysis: a case study of a computer-based system |
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| Affiliation: | 1. Turnbull Jeffrey Partnership, 44 North Castle Street, Edinburgh EH2 3BN, UK;1. South of Scotland Electricity Board, Cathcart House, Glasgow G44 4BE, UK;1. ORISE Fellowship Participant, US EPA, Office of Research and Development, Research Triangle Park, Durham, NC, USA;2. Center for Geospatial Analytics, North Carolina State University, Raleigh, NC 27695, USA;3. College of Design, Campus Box 7701, North Carolina State University, Raleigh, NC 27695, USA;4. Geosciences and Environmental Change Science Center, U.S. Geological Survey, Denver, USA;5. Forestry and Environmental Resources, NC State University, USA;6. U.S. Fish and Wildlife Service, Raleigh, NC, USA;7. US EPA, Office of Research and Development, National Exposure Research Laboratory, Research Triangle Park, Durham, NC, USA;1. School of Urban and Environmental Science, Jiangsu Normal University, Xuzhou, China;2. School of Arts and Design, China University of Mining and Technology, Xuzhou, China;3. Department of Forest Resources Management, Faculty of Forestry, The University of British Columbia, Vancouver, Canada;1. Agroscope, Institute for Sustainability Sciences ISS, CH-8046 Zürich, Switzerland;2. Swiss Federal Research Institute WSL, CH-8903 Birmensdorf, Switzerland;3. Institut für Biologie und Schulgartenentwicklung, Pädagogische Hochschule Karlsruhe, D-76060 Karlsruhe, Germany |
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| Abstract: | A system for computer-aided visual impact analysis (CAVIA) has been developed. The system can be considered as having landscape data, object data, visibility and visualization subsystems. A case study of the application of the system to the evaluation of alternative transmission line routes illustrates the techniques used for data collection, visibility and visualization. The integration of a digital terrain model (DTM) and associated derived data with Landsat satellite data to guide design work and construction planning is described. Validation of visualization and other aspects of the technique based on the constructed lines and current and future developments such as image mixing are discussed. The need for the system as an aid to planning and design problems is explained. |
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