Spatial Scope of the Regional Hazard Mitigation Plan

Abstract

This study suggests the spatial scope of the regional hazard mitigation plan, reflecting the feature of natural hazards occurring beyond the administrative zone boundary. The damage caused by natural hazards is not randomly distributed across a space but has interdependent characteristics with the nearby area; therefore, the spatial influence of an adjacent area should be considered. In particular, as damage due to natural disasters is increasing in Korea, it is necessary to establish a regional hazard mitigation plan considering the spatial characteristics of hazards. However, the current hazard mitigation plan sets the scope of the plan based on administrative boundaries. In this study, we measured the vulnerability index of each area using data spanning 10 years from 2008 to 2017 and verified spatial correlations through LISA (Local Indicator of Spatial Autocorrelation). According to LISA analysis, we found that a link exists between si/gun/gu and we identified the spatial characteristics of natural disaster damage. The results confirmed that natural hazard characteristics occur beyond the boundaries of administrative areas.