Research Article

The Control Index for the Construction of Sponge City in the Residential Area: A Case Study of Nanjing Jiangbei New District

Table 2

Runoff coefficient of each land type [15].

Land typeRunoff coefficient

ResidentialGreen roof0.4
Hardened roof0.85
Road squarePermeable0.15
Impermeable0.85
Green space0.15
Public municipal0.85
Waters1