SUDS selection methodology based on continuous modelling on EPA SWMM: a case study for Colombian and Spanish cities

Abstract The development of computational tools based on urban drainage models is fundamental for the correct adoption of SUDS. The present study proposes a systematic approach based on continuous modeling on EPA SWMM to properly select SUDS, by evaluating several aspects related to their design and configuration. The analysis of the design parameters showed that only the surface variables evidenced a sensitivity of around 20% for some typologies. Likewise, the optimal area, number of structures, combination and interconnection of SUDS typologies were found for a case study in Santander, Spain. When applying the results to different geographic regions, the high dependence of the methodology on the performance variable, the region and the type of modeling used was evidenced. It is essential to develop tools that automate the SUDS selection process and, at the same time allow the inclusion of social and economic aspects, and the mediation with different stakeholders.