Abstract
Primary purpose of this study is to define the procedures through which the infrastructure of natural environment is promoted in the restoration process of suburban new towns by clarifying the relationship between regional hydrological system, represented mostly by surface drainage pattern in watersheds, and the open space system. A case study at Senri New Town in Osaka Prefecture was conducted in terms of (1) location of irrigation ponds and hydrological pattern in the area before the development and their changes, (2) cross regulating relationship between surface drainage pattern and physical planning for land formation, road/street and parks/open spaces after the development, and (3) structure of hydrological system as an infrastructure of natural environment for the open space system. Internal and external conditions influenced the development were also examined, and it is concluded that by reflecting those conditions to the physical planning and design of land formation, road / street network, and surface drainage pattern, the infrastructural framework of natural environment which underlies the open space system in the new town was activated.
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