The study looked at how bioretention systems in urban areas can help manage stormwater runoff and reduce flooding. Researchers examined how these systems affect peak flow and runoff in different conditions. They found that bioretention systems can be effective in reducing stormwater runoff, especially in areas with high levels of impervious surfaces. The presence of storage facilities in these systems also plays a role in managing water flow. Overall, the study shows that bioretention systems can help improve hydrological performance in urban watersheds.