Enhancing the discussion of alternatives in EIA using principle component analysis leads to improved public involvement |
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| Institution: | 1. JICA Research Institute, Japan International Cooperation Agency, Tokyo, Japan;2. Graduate School of Global Environmental Studies, Sophia University, Tokyo, Japan;1. Institute of Biological and Health Sciences, Federal University of Alagoas, Maceió, Brazil;2. Instituto de Geografia, Universidade do Estado do Rio de Janeiro, Rio de Janeiro, Brazil;3. School of Geography and the Environment, University of Oxford, Oxford, UK;4. Instituto de Pesquisas Ecológicas (IPÊ), Nazaré Paulista, Brazil;1. Global Risk Governance Programme, Department of Public Law, Kramer Law Building, University of Cape Town, Rondebosch, Cape Town, South Africa;2. Environmental & Geographical Science Building, University of Cape Town, South Lane, Upper Campus, Private Bag X3, Rondebosch 7701, South Africa;3. Netherlands Environmental Assessment Agency, Bezuidenhoutseweg 30, 2594AV The Hague, The Netherlands;1. Environmental and Conservation Sciences, Murdoch University, Australia;2. Environmental and Conservation Sciences, Murdoch University, Australia, Research Unit for Environmental Sciences and Management, North-West University, South Africa;1. Natural Resources Institute, University of Manitoba, Winnipeg, MB R3T 2N2, Canada;2. Department of Environmental Studies and Sciences, University of Winnipeg, 515 Portage Avenue, Winnipeg R3B 2E9, Canada;1. Department of Development and Planning, Aalborg University, Aalborg, Denmark;2. Copernicus Institute of Sustainable Development, Utrecht University, Utrecht, The Netherlands;3. Department of Urban and Rural Development, Swedish University of Agricultural Sciences, Uppsala, Sweden;4. Forest and Nature Conservation Group, Wageningen University and Research Centre, Wageningen, The Netherlands |
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| Abstract: | The purpose of this study is to show the effectiveness of principle component analysis (PCA) as a method of alternatives analysis useful for improving the discussion of alternatives and public involvement. This study examined public consultations by applying quantitative text analysis (QTA) to the minutes of meetings and showed a positive correlation between the discussion of alternatives and the sense of public involvement. The discussion of alternatives may improve public involvement. A table of multiple criteria analysis for alternatives with detailed scores may exclude the public from involvement due to the general public's limited capacity to understand the mathematical algorithm and to process too much information. PCA allowed for the reduction of multiple criteria down to a small number of uncorrelated variables (principle components), a display of the merits and demerits of the alternatives, and potentially made the identification of preferable alternatives by the stakeholders easier. PCA is likely to enhance the discussion of alternatives and as a result, lead to improved public involvement. |
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