Vulnerability Assessment and Empirical Study of Urban Drainage Network Based on Coupling Analysis

Abstract

The implementation of vulnerability assessment of urban drainage network is of great significance to improve the efficiency of urban waterlogging control. Based on the coupling perspective, the vulnerability assessment index system of urban drainage network is constructed from three dimensions of “exposure-sensitivity-adaptability”. Taking Tianjin as an example, the vulnerability of urban drainage network is empirically analyzed. The results show that reducing the exposure index and improving the sensitivity index and strain capacity of urban drainage network can effectively reduce the vulnerability of urban drainage network; According to the vulnerability of urban drainage networks, targeted prevention and control measures are taken.