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Application of fuzzy set modeling in infrastructure visual impact assessment

Vaziri, M ; Sharif University of Technology | 2006

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  1. Type of Document: Article
  2. Publisher: 2006
  3. Abstract:
  4. Infrastructure visual impact assessment based on an opinion survey and fuzzy set modeling was attempted. Photographs reflecting various transportation infrastructure and environment features were displayed to a group of transportation professionals and users. The group was asked to complete a relevant questionnaire regarding the highway infrastructure appearance acceptability of photographs. A set of visual impact descriptive variables was identified and directly measured from the photographs. Information about the descriptive variables, questionnaire responses and fuzzy set theory was used to develop membership functions of visual acceptability. More than two hundred candidate membership functions were developed and evaluated. Among these, five single variable and one multivariable membership functions were selected. The membership functions quantified the urban visual acceptability fuzzy variable in a scale of zero to one and were suggested as visual impact indices. These indices can be used in multi-criteria evaluation of transportation infrastructure and service development. Although the study findings are based on a limited database and are location specific, the applied methodology can be used in other infrastructure visual impact assessment studies, especially for transportation facility design and operation
  5. Keywords:
  6. Aesthetics ; Appearance acceptability ; Contextual planning and landscaping ; Infrastructure design ; Visual impacts ; Fuzzy set theory ; Fuzzy sets ; Photography ; Structural design ; Surveys ; Multivariable systems
  7. Source: 10th East Asia-Pacific Conference on Structural Engineering and Construction, EASEC 2010, Bangkok, 3 August 2006 through 5 August 2006 ; Volume 2 , 2006 , Pages 263-268