Caracterização do escoamento de águas pluviais em vias urbanas: pavimento asfáltico versus pavimento intertravado

Abstract

This study comprehensively investigates the behavior of rainwater runoff on urban roads by comparing asphalt and interlocking pavements. Using the Storm Water Management Model (SWMM), hydrographs were simulated to analyze key parameters such as runoff volume, flow rate, and flow velocity under a scenario with a total precipitation of 150 mm over six hours, with a peak of 40 mm. The results show that the asphalt pavement, due to its low permeability, reached a peak flow rate of approximately 180 L/s, while the interlocking pavement, which facilitates infiltration, recorded a peak of about 130 L/s – representing a 28% reduction in peak flow. Moreover, the maximum flow velocity on the interlocking pavement was around 33% lower, demonstrating a more gradual and controlled water release. These findings underscore the importance of adopting permeable solutions to mitigate flood risks, reduce the burden on urban drainage systems, and promote more resilient and sustainable urban environments.