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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