A Study on Categories of Green Infrastructures to Enhance Urban Resilience

The purpose of this study is three-fold: 1) to analyze the categories of green infrastructures according to related disciplines through literature review, 2) to draw the categories of green infrastructures according to the natural disasters, and 3) to propose application measures of the green infrastructure to enhance urban resilience. To reach these goals, 381 papers have been studied through literature review and frequency analysis for recent 5 years. The results of the study are as follows: First, 26 categories of green infrastructure are established according to function and scale, and the categories of green infrastructure whether in engineering, natural science, and social science are analyzed through frequency analysis. Second, this study has drawn the major categories of green infrastructures that can reduce damages by flood, heat island, and drought. The major categories of floods are green roofs, permeable pavement, detention ponds, etc; the major categories of heat islands are green roofs, trees and parks; and the major categories of drought are green roofs, parks and detention ponds. Third, we discuss the utilization measures of green infrastructure according to the multi-scale strategy to improve overall robustness to enhance urban resilience. This study emphasizes the necessity of enhancing the robustness of the urban system in response to disaster by establishing networks of hub and link with green infrastructure.