A Study on the Public Space Use to Promote Cityscape Improvement and Downtown Revitalization

在一个迷人的城市里有一种生动的生活。提高城市景观的吸引力，振兴城市，既要提高人们的生活水平，又要改善环境的物质条件。街道、广场等公共空间是城市中人们生活的主要舞台。为了提高城市景观质量，必须建立适当的系统来控制公共空间的使用。本研究的目的在于：分析具有悠久而丰富的公共空间使用传统的西方城市的控制系统和程序；●通过户外咖啡馆和遮阳伞廊的实验，提出一种开发日本公共空间的方法。结果表明：(1)分析了巴黎、伦敦、米兰、哥本哈根、斯德哥尔摩、赫尔辛基、旧金山、波特兰、西雅图、纽约和库里提巴等11个西方城市的公共空间使用控制系统和程序的特点；(2)通过对日本广岛、横滨、名古屋等先锋城市和韩国首尔、清州等2个城市的案例分析，阐述了公共空间利用的潜在途径；(3)对千叶的户外咖啡馆和遮阳伞廊进行持续实验，分析公共空间利用对城市景观改善和市中心振兴的影响。

There is a vivid life in an attractive city. It is important to promote people's life as well as the physical improvement of environment in order to increase the attractiveness of cityscape and to revitalize downtown. Public space, for example, street and square is a major stage of people's life in a city. It is essential to establish a proper system to control the use of public space in order to improve the quality of cityscape.The purposes of this study are the followings :●to analyze the control systems and procedures in Western cities where the public space use has a long and rich tradition ; and●to suggest a way to develop the public space use in Japan through an experiment of outdoor cafe and parasol gallery.The results are the followings :(1)we analyzed cases of 11 Western cities, namely, Paris, London, Milan, Copenhagen, Stockholm, Helsinki, San Francisco, Portland, Seattle, New York and Curitiba, and explained the characteristics of their control systems and procedures on the public space use ;(2)we analyzed cases of pioneer cities in Japan, such as Hiroshima, Yokohama and Nagoya, as well as 2 Korean cities, namely, Seoul and Cheongju, and explained a potential approach to the public space use ; and(3)we made a continuing experiment with an outdoor cafe and a parasol gallery in Chiba, and analyzed the effect of the public space use on cityscape improvement and downtown revitalization.