What are the engineering measures in the classification of best management measures for sponge city construction in the United States?

Engineering measures include green roofs, rain gardens, bioretention tanks, etc.

In the classification of best management measures for sponge city construction in the United States, engineering measures mainly refer to the collection, storage, purification and utilization of urban rainwater through engineering means. Among them, a green roof is a measure that uses roof space to plant plants to reduce rainwater runoff through the absorption and evapotranspiration of plants; a rain garden is a measure that collects and filters rainwater by designing a garden; and a bioretention tank is a measure that uses artificial Construct lakes or ponds to collect and purify rainwater. These engineering measures can effectively reduce urban rainwater runoff and improve the city's water resource utilization efficiency.

The classification of best management measures for sponge city construction in the United States also includes other types of measures, such as policy measures, social measures, and economic measures.