ABSTRACT
Sponge city is a new generation of an urban stormwater management concept developed and implemented in China. As the name implies, the concept means that a city or a particular urban environment can be like a “sponge” and has adequate flexibility in adapting to environmental changes and responding to natural disasters caused by rain and potential overflow of water bodies in or around cities. Sponge city plays a part in sustainable urbanism from the design and construction perspective. As a result, the design and construction of the city’s sponge system aim to ensure that the “runoff control rate” index is achieved and rainwater is stored in the allocated facilities according to the specially designed rainfall of each place. Through sponge city development and its implementation at the neighborhood and district levels, the project addresses four key factors: water pollution caused by urban development, floods caused by rainfall, rain damage to the ruins of the ancient city, and heat island effect.
