Agent-based assessment of stormwater re-use potential of low-impact development control facilities at the site of Vlasina Lake, Serbia

Vlasina Lake in south-east Serbia is classified as an Area of Distinct Land Use and, as such, is subject to high environmental protection standards applied in the Master Plan. Two open channels for stormwater and sediment transportation to two large detention basins with pumping stations for water evacuation into the lake were envisaged in the Master Plan. In the preliminary design, the stormwater system was quite different: wherever possible, on-site natural features were used for allocation of ponds, and drainage channels were led through existing road culverts. The applied design concept has been low impact development (LID), which led to potential blue-green corridors, recognized by project stakeholders. The paper studies the possibility of using ponds as a key element of both the LID concept and the blue-green corridors approach. For that purpose, an initial Vlasina Lake site agent-based simulation model has been created. A realistic physical model is included, and simulation results for two hypothetical climatic and socio-economic scenarios are presented. From the experience in creating the agent-based model, and based on the simulation results, recommendations are given for further work. It is shown that ponds have potential for the investigated water re-use purposes.