Research Article
Using Multiple Index Comprehensive Method to Assess Urban Rainstorm Disaster Risk in Jiangsu Province, China
Table 1
Risk assessment index system of urban rainstorm disaster.
| Target layer | Primary indices | Secondary indices |
| Urban rainstorm disaster risk | Dangerousness | Continuous rainfall days (I11: days) (monthly) | Heavy rain days (I12: days) (monthly) | Maximum rainfall in 24 h (I13: mm) | Monthly total rainfall (I14: mm) | Precipitation anomaly percentage (I15: %) | Sensitivity | Urban average elevation (I21: m) | Urban green coverage rate (I22: %) | Urban drainage network density (I23: km/km2) | Urban water area percentage (I24: %) | Impermeable construction land (I25: km2) | Vulnerability | Density of affected population (I31: People/km2) | GDP of unit area (I32: 100 million yuan/km2) | Disaster relief investment level (I33: %) | Public emergency response capability (I34) |
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