The goal of the study was to evaluate and optimize Low Impact Development (LID) designs for managing stormwater in urban areas facing increasing extreme storms due to climate change. The researchers used statistical models and simulations to assess current and future stormwater systems, finding a significant increase in runoff in the future. Different types of LIDs, like bio-retention and permeable pavement, were tested and shown to reduce runoff volume by 30% to 75% for past and future storms. By using a Genetic Algorithm, the researchers identified the most cost-effective mix of LIDs and conventional stormwater systems to manage stormwater effectively in urban areas.