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 typePercentageRunoff coefficient

ResidentialGreen roof7.50.4
Hardened roof17.50.85
Road squarePermeable31.50.15
Impermeable13.50.85
Green space300.15
Comprehensive surface runoff coefficient0.386