International Journal of Affective Engineering
Online ISSN : 2187-5413
ISSN-L : 2187-5413
Original Articles
Investigation of Factors Affecting the Evaluation of Streetscapes in Japan and China
- An Evaluation of Streetscape based on the Random Forests Method -
Li LIYang KUNToshio SHIMOKAWAIsao OYAMAShinichi KITAMURA
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ジャーナル フリー

2013 年 12 巻 1 号 p. 1-10

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Improvements in road sizes, qualities, and quantities are progressing in accordance with car use, while pedestrian space has been neglected. As typical developed and developing countries, Japan and China are facing the same problem in relation to streetscapes. Because streets are city property, it is important for city authorities to plan and conduct qualitative maintenance together with quantitative maintenance. For this reason, clarifying the importance of physical factors on evaluation of streetscapes and their effective operation is necessary. To date, a vast amount of scholarship has been devoted to evaluate streetscapes in Japan and China. However, the physical factors influencing streetscape evaluation have not been the same in all countries. In this study, the target areas of Chengdu, China, and Tokyo, Japan, were selected and a questionnaire was conducted in both places. Breiman's random forests method was used to analyze the data obtained from the survey. It revealed that the three chief factors affecting evaluation of streetscapes were determined as comfort, beauty, and activity. For comfort, streetscape is strongly influenced by landscape and spatial situation in Chengdu. On beauty, the impact of building usage was stronger in Tokyo than in Chengdu. For activity, the activity score of Tokyo was significantly higher than Chengdu, and the congestion of street had the strongest influence for both Tokyo and Chengdu. The fundamental knowledge about the differences and similarities in the evaluation of streetscapes in Japan and China will be a salutary lesson for the streetscape development of China.

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© 2013 Japan Society of Kansei Engineering
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