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 indexHigh-end residential areaOrdinary residential area, guaranteed housingMunicipal roads

Subsidence green rate≥ 15%≥ 10%≥ 30%
Green roof rate20%–50%
Permeable pavement rate≥ 90%≥ 70%≥ 90%
Regulation and storage facilitiesEvery 10,000 square meters of the hardened area is equipped with a rainwater storage facility of not less than 300 m3