The effect of Applying Best Management Practices on the Quantity and Quality of Urban Floods

Urbanization has been one of the challenges of the present century that have consequence including its effects on reducing the amount of surface runoff to the ground and the occurrence of urban floods. Contamination of these runoffs to variety of elements in urban environments is also a problem that with low levels of surface runoff which makes it difficult to direct applied them for other purposes. Today, one of the best ways to reduce the volume and pollution of surface runoff is the use of best management practices (BMPs) that have been the focus of most cities around the world. In the present paper, the effects of some of these strategies, including garden-canal and permeable pavement, on reducing runoff contamination in the study area, which is part of Tehran Municipality 10, It has been studied using surface runoff management software. Different scenarios have been considered for using these management strategies. In all cases, the results show that the efficiency and effectiveness of using these two types of BMPs have been in reducing the volume and peak runoff and runoff contamination. The results showed that the permeable pavement had a better performance in reducing the peak and elimination of pollution in the studied area and the best option in most scenarios was the combination of garden-canal and permeable pavement practices.