Resumo

PANTOJA CARDENAS, Jhoan Sebastián  e  ZAMBRANO NAJERA, Jeannette. Assessment of Permeable Pavements as a Technique to Mitigate Surface Runoff Peaks. TecnoL. [online]. 2024, vol.27, n.61, e206.  Epub 03-Fev-2025. ISSN 0123-7799.  https://doi.org/10.22430/22565337.3165.

Stormwater flooding causes emergencies and disasters in cities worldwide. These floods are mainly caused by the impermeabilization of the watersheds. The problem worsens in cities like Manizales, with medium to high slopes, as high flow velocities occur, leading to increased runoff volumes, which in turn are associated with high peak flows. To mitigate these negative effects, Permeable Pavements (PP) have emerged as an alternative infrastructure solution. Considering this, the objective of this research was to assess the impact of PP in mitigating surface runoff peaks in watersheds with medium to high slopes. The methodology used involved hydrodynamic modeling with SWMM in the Palogrande San Luis experimental watershed, which exhibits the mentioned characteristics and is located in the city of Manizales, Colombia. PP was used for light-traffic vehicle roads in permeable asphalt, parking lots in permeable concrete, and common areas with permeable concrete pavers. The proposed PP for parking lots and common areas showed runoff reductions of only between 0 % and 20 %. Finally, it was concluded that the proposed PP for vehicular roads reduces surface runoff more than those proposed for common areas and parking lots, due to the impermeable contributing area associated with each one.

Palavras-chave : High slopes; steep cities; stormwater floods; permeable pavements; sustainable urban drainage systems.

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