Methodological Study on measurement of sufficiency of Urban Parks from Viewpoint of Disaster Responses

- A Case Study in Setagaya-Ward of Inner Tokyo

Abstract

The aim of this paper is to develop measuring methods of sufficiency of urban parks after from the viewpoint of earthquake disaster responses. We took the overview of the usage of urban parks after 1995 Hanshin-Awaji Earthquake Disaster and six activities for disaster responses in urban parks were focused. In a case study in Setagaya-ward, which is under the averaged situation of urban parks location in inner Tokyo, we analyzed the location and spatial efficiency of urban parks by GIS technology, mainly methods of buffering and boloney separating. As the result, it is clarified that small parks are sufficient for community bases of service supply to suffered local people, but the shortage of large parks make regional evacuation activities insufficient in Setagaya. Our GIS methods are effective for measuring sufficiency of urban parks for disaster responses.