Disaster Impact Assessment & Application of Reservoirs, Using Public Data

Seona Jung¹

Abstract

This study conducted disaster impact assessment (DIA) on the downstream areas of the reservoirs in Gyeonggi-do, selected among the 14,323 reservoirs nationwide that are under control of local governments. There are 229 reservoirs located in Gyeonggi-do, and a GIS was used to set the range of the downstream areas for these reservoirs. For the designated downstream areas, the public data was used to build a database on the number of households, cultivated areas, the total floor area of buildings, and the area of the infrastructures. As the characteristics and units of each data were different, the data was standardized through the z-score to comprehensively evaluate the disaster impact in the downstream areas of the reservoirs. For that, each data was given equal weight. The resulting analysis shows that 14 of the reservoirs in Gyeonggi-do are older than 60 years, and that there are a great number of households, buildings, and cultivated areas in the downstream areas. Therefore, along with maintenance and reinforcement after a precise diagnosis of the reservoirs, precautions to minimize damage to the downstream areas when a reservoir collapses are urgently required. This study is an assessment of the relative impact of disasters on downstream areas upon the collapse of a reservoir, using public data. It is expected that the results of this study may be used to establish the management policies for reservoirs and downstream areas.

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Cite this Article as Follows

Seona Jung. Disaster Impact Assessment & Application of Reservoirs, Using Public Data. International Conference on Architecture and Civil Engineering (2017): 13. Print.