Research Article
The Control Index for the Construction of Sponge City in the Residential Area: A Case Study of Nanjing Jiangbei New District
Table 4
Estimation of comprehensive surface runoff coefficient of residential land in d010 plot.
| Land type | Percentage | Runoff coefficient |
| Residential | Green roof | 7.5 | 0.4 | Hardened roof | 17.5 | 0.85 | Road square | Permeable | 31.5 | 0.15 | Impermeable | 13.5 | 0.85 | Green space | 30 | 0.15 | Comprehensive surface runoff coefficient | 0.386 |
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