Re-evaluation of Loop-shaped Urban Structure of Compact City as Infrastructure of Mature Society

本研究以现代化之前形成的传统环形城市结构为研究对象，通过对城市化历史上环形城市的时间顺序回顾以及文献综述和实地调查的分析，阐明了环形城市形态的类型和特征点。通过对日本、中国和欧洲城市的实例分析，阐明了环形城市结构作为老龄化社会中便捷高效的城市基础设施的优势和作用。

This research focuses on the traditional loop-shaped urban structures formed before the modernization, and clarifies the typology and characteristic points of the loop shaped urban forms through the chronological review of loop-shaped cities in urbanization history and the analysis based on the literature reviews and field surveys. In addition, it clarifies the advantages and functions of the loop-shaped urban structure as the convenient and efficient urban infrastructure in the aged society through the case studies in cities of Japan, China an Europe.