Visual Assessment on River Landscape in the Urban Fringe of Kobe City

Abstract

本研究は, 神戸市西区伊川谷地域を縦貫する伊川を事例としてとりあげ, 住民の河川景観に関する視覚的選好を分析, 考察したものである。筆者らの同地域の先行調査ではこの地域の景観の中で最も保護すべきもののひとつとして, 伊川があげられていた。今回の調査では, 同地域の2地区の住民に各地区内の伊川とその周辺の景観デザイン例を見せてその選好を調査するとともにSD法を用いて分析した。調査結果として, 総合評価, 規模及び密度が主たる因子として抽出された。住民の選好傾向としては, 河川敷を散策しながら田園風景を楽しめるような自然的取り扱いが求められレクリェーション施設としても簡潔で自然的なデザインと親水性が求められた。

In this research, residents from two districts (Ikegami and Zenkai) located in the Ikawadani region, west part of Kobe City were interviewed in order to evaluate the landscape of some design proposal for the Ikawa river which flows across this region. In previous research, 2) the river was assessed by residents as on of the most important landscapes to protect. Residents were asked to select the best, better, good and the worst, worse, bad landscapes, then the Semantic Differential Technique was applied to measure their visual perception in detail. From the result, factor structure of the semantic judgements and their interpretation were obtained by factor analysis. The main factors for judging the selected landscapes were the evaluation, size and density factors. According to residents' opinions, the river has to be conserved in a natural way with a wide space on riverside where people can enjoy rural-woody landscape. Also the construction of recreational facilities has to be designed in a simple, modest and natural way which allows contact with water. This research seeks to evaluate residents' attitudes towards the landscape and aim that local planning authorities could consider these results in their development policies.