Research Article
The Control Index for the Construction of Sponge City in the Residential Area: A Case Study of Nanjing Jiangbei New District
Table 7
Single index requirements for low-impact development of residential land in d010 plot.
| Control index | High-end residential area | Ordinary residential area, guaranteed housing | Municipal roads |
| Subsidence green rate | ≥ 15% | ≥ 10% | ≥ 30% | Green roof rate | 20%–50% | — | — | Permeable pavement rate | ≥ 90% | ≥ 70% | ≥ 90% | Regulation and storage facilities | Every 10,000 square meters of the hardened area is equipped with a rainwater storage facility of not less than 300 m3
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