近世城下町大坂の船場・島之内地区における城下町設計の論理

抄録

The castle town of Osaka had unique urban fabric composed of well-developed infrastructure, such as streets, waterways and drainage. These elements have long interested researchers in the fields of urban history, architectural history and others. However, the principles of the design of the city have not been fully understood. Therefore, there has been a growing request to perform research on it in the field of history of civil engineering from the viewpoint of the infrastructure realignment of streets, waterways, drainage and others. The purpose of this study was to understand in Semba and Shimanouchi Districts: 1) starting points and standards of block layouts, 2) design units, and 3) the process of the development, directing attention to the relationship between infrastructures and block layouts. In the study, using modem surveying maps: 1) the size of blocks and building lots, 2) relationship between main streets and topography, 3) relationship between drainage and topography, and 4) method and year of development of waterways were analyzed. As a result, the study has shown that there were four design units in Semba District, and that each unit had its own standards of block layouts different from others. Also, the study has clarified that there were seven design units in Shimanouchi District, and has explained the process of the development in Shimanouchi District, arranging these units chronologically. These results are more logical explanation of the principles of the design of Osaka than the result of the previous studies and can add a new explanation to the design principles of the castle town of Osaka.