Research Article
Using Multiple Index Comprehensive Method to Assess Urban Rainstorm Disaster Risk in Jiangsu Province, China
Table 2
The index weights of urban rainstorm disasters.
| | Primary indices | Secondary indices | Weight |
| | Dangerousness | Continuous rainfall days (days) | 0.0630 | | Heavy rain days (days) | 0.0735 | | Maximum rainfall in 24 h (mm) | 0.0945 | | Monthly total rainfall (mm) | 0.0665 | | Precipitation anomaly percentage (%) | 0.0425 |
| | Sensitivity | Urban average elevation (m) | 0.0772 | | Urban green coverage rate (%) | 0.0577 | | Urban drainage network density (km/km2) | 0.0927 | | Urban water area percentage (%) | 0.0735 | | Impermeable construction land (km2) | 0.1279 |
| | Vulnerability | Density of affected population (people/km2) | 0.0424 | | GDP of unit area (100 million yuan/km2) | 0.0916 | | Disaster relief investment level (%) | 0.0452 | | Public emergency response capability | 0.0408 |
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