Abstract

In this study, rain would be regarded as an important factor in landscape color planning, and the visual effects and impressions of colors on façades during rainfall were focused. Verification experiments in which the authors produced a rain simulation device that can control rainfall and illuminance were conducted. Experiments were conducted based on an experimental design with four factors of hue (5R / 5Y / 5G / 5PB), Chroma, lightness, and rainfall. In the rainfall simulation experiment, the visual effects of the color based on visual colorimetry were evaluated, and impression evaluations were extracted. As results, this study presented our findings about the relationship between rainfall and the visual effects and impressions of color, and determined that there are differences in the evaluation depending on the Hue and the amount of rainfall. In landscape color planning, considering the influence of rainfall is important for a fascinating landscape. This study will show basic important references of such new landscape color planning.

Highlights

  • There are many days when it will rain in Japan

  • Rain is an important factor in capturing the landscape, and in Japan, rainfall has long been a feature of landscape appreciation

  • In the rainfall simulation experiment, the visual effect of the color based on visual colorimetry, and conducted impression evaluations

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Summary

Background

There are many days when it will rain in Japan. Culture and custom on rain are deeply rooted in everyday daily life. Rain is an important factor in capturing the landscape, and in Japan, rainfall has long been a feature of landscape appreciation. Landscape appearance will vary depending on the situation of rain. The appearance with the strength of rain is one of the important landscape features of rain. It is unknown how the appearance of the facade color changes in the rain. There are no studies about visual positive effects of colors on facades during rain. Rain should be taken into consideration as an important factor in landscape color planning, and the visual effects and impression of colors on facades during rainfall were investigated

First investigation
Second investigation
Results and discussion
Conclusion

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