The sponge city concept offers a sustainable approach to managing urban flooding by using green roofs, permeable pavements, rain gardens, and wetlands to absorb, filter, and store stormwater. These strategies not only mitigate flood risks but also improve water quality, replenish groundwater, and enhance urban green spaces.
Arup’s Global Sponge Cities Snapshot highlights how cities worldwide are adapting to these challenges by integrating green-blue infrastructure. The report ranks cities like Auckland, the “spongiest” with 35% sponginess, and Sydney, which struggles with impermeable surfaces at just 18%. It underscores the need for cities to adopt resilient water management strategies.
Learn more about optimizing sponge cities’ design with ENVI-met: Optimize sponge cities for floods | ENVI-met from One Click LCA
