Yuki YAMASHIMA | |
Department of Tourism and Community Development | |
Research Associate |
The purpose of this study is to grasp the concepts of rooftop greening and to clarify the birth of multiple rooftops greening and its concepts and significance in history of rooftop greening. Some 157 examples of rooftop greening were collected from technical books and contests and were analyzed from the viewpoint of place of rooftop greens, spatial relations of rooftop green, accessibility to the rooftop greens, mobility between rooftop greens, presence of natural vegetation, water environment and existence of neighboring ground green spaces. The data set was analyzed through cluster analysis and Hayashi's quantification methods typeⅢ and chronological table on the history of technologies and governmental policies. As a result, it was made clear that the concept of greening the rooftop appeared early works in history of rooftop greening. Afterwards, the concept of rooftop green on the intermediate floor also became popular in 1980s and surrounding natural environments were taken into account in 1990s. After the birth of multiple rooftops greening, rooftop greens became closed to the ground, easier to access, connected visually and biologically and improved between the upper and lower rooftops. In the case of Across Fukuoka of 1995, all concepts were introduced. In conclusion, it’s considered that multiple rooftops greening showed the new concept of continuities.
[in Japanese]
The purpose of this study is to investigate whether rooftop greening remained or disappeared in public facilities with rooftop greening, and to consider the life cycle of rooftop green spaces. The cases were collected from the journal of Shin-Kenchiku and technical books, and included cases built before 2001, when the greening of rooftops became compulsory by Tokyo's regulations. Among the 96 cases of public facilities with green roofs, 86 cases in which both the building and the rooftop green space were unchanged, 6 cases in which the building existed but the rooftop green space disappeared, and 4 cases in which the rooftop green space disappeared due to the disappearance of the building were identified. The presence or absence of rooftop green spaces depends largely on whether the building is demolished due to its age or not. And the rooftop green spaces can be removed due to safety, management or cost issues. On the other hand, the movement to protect not only buildings but also rooftop green space by designating it as a cultural asset was confirmed and proposed as one of the measures to exist of rooftop green space for a long time.
This study aims to identify the attributes, travel characteristics, and attitudes toward an environmental conservation fund among users of paid and free parking lots and low emission buses in the Oku-Nikko area of Nikko National Park, and to discuss the suitability of the fund for the area, its use, and issues. As a result, of the 991 respondents, about 90% agree to create the fund. Based on the travel characteristics of park users, more than 90% of whom use cars, a fund with additional fees for parking and low emission buses is thought to be fit with the characteristics of park use. However, there are some differences in attitudes among the users, and it is thought to be important to seek their understanding of the necessity of the fund.
[in Japanese]
In this study, we conducted a questionnaire survey on visitors to Aso-Kuju National Park and ascertained the approval and disapproval of the fund for nature conservation and the collection method. Furthermore, a cross-tabulation analysis was conducted targeting of fund supporters, and it became clear that many collection methods were acceptable. In particular, those who want to improve the environment will be allowed to collect at major bases, while those who want to manage the fund's secretariat costs and personnel costs should collect the way of collecting possibly from everyone and adding to the parking fee.
[in Japanese]
[in Japanese]
[in Japanese]