An open-source toolbox for investigating functional resilience in sewer networks based on global resilience analysis

Resilience analysis of urban infrastructures such as sewerage systems is very important due to different stressors. Failure in these may lead economic, social, health and environmental consequences. The functional resilience can be analyzed all failure levels caused by unpredictable or even unknown events based on the global (GRA) method. To perform GRA under scenarios pipe collapse blockage, performance system must evaluated possible link combinations. time this process might unfeasibly long real networks. In paper, an open-source toolbox developed which uses a proposed scenario selection method roulette wheel without simulating scenarios. This O-SWMM API version EPA's Storm Water Management Model (SWMM) optimize simulation memory usage. results show that mean for sample also sewer network was estimated with RMSE less than 0.025 0.022 respectively comparing Moreover, computation using at least 2.26 times faster SWMM.exe.