Abstract
The objective of this study was to determine the effect of prior knowledge and visual evaluation on supports for rain garden installations. To achieve this objective, a survey was conducted to obtain prior knowledge of rain gardens, rain garden implementation support ratings, and visual evaluation of rain gardens in 100 visitors of three rain garden sites. Results of the analysis revealed that users’ visual evaluation of rain gardens played a role as a moderator in the relationship between prior knowledge and support for rain garden installations. In other words, education and publicity of rain gardens alone cannot increase support for rain gardens. However, if rain gardens are visually evaluated positively, the effects of education and publicity of rain gardens can be expected. Therefore, to successfully apply a rain garden policy in the future, basic consideration should be given to aesthetics in order to meet visitors’ visual expectations prior to education and publicity of rain gardens.
Highlights
Due to the seriousness and urgency of water cycle and water ecosystem pollution as a result of climate change and the urbanization of watersheds, related studies are continuously being carried out in various public and private organizations internationally
Rain gardens are effective in terms of landscape, ecology, and economy because of its low installation costs and easy maintenance, as well as long-term use [3]
The results revealed that the four rain garden sites rank second through fifth places in the preference survey, showing that users had a stronger preference for streets with rain gardens [17]
Summary
Due to the seriousness and urgency of water cycle and water ecosystem pollution as a result of climate change and the urbanization of watersheds, related studies are continuously being carried out in various public and private organizations internationally. A rain garden is a planted depression designed to infiltrate runoff. It is commonly known as a bio-retention facility [2]. Rain gardens are effective in terms of landscape, ecology, and economy because of its low installation costs and easy maintenance, as well as long-term use [3]. They are a typical biofilter as a low-energy water treatment technique for both quality and quantity, consisting of a vegetated overlaying layers of porous media [4]
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