چكيده به لاتين
Increasing the impermeable environment causing increasing surface runoff, increasing runoff speed, and reducing the time remaining and water quality. Land development, which is increased urbanization, affect the natural environment with increasing runoff volume, reducing basic flow, groundwater, water quality. One the other hand, one of the most serious challenging and concerning for viable urban development in over the world is the effect of climate change in which has negative impacts on the hydrology and quality of water resources caused by urban runoffs. The modern approaches management to surface runoff, they are using a low-impact development techniques as new effective technologies, providing the possibility of penetrating surface runoff to under the ground, reducing the movement of pollutants from the ground to surface water or groundwater, maintaining the quality of water supplies. The purpose of this study is to quantitative and qualitative management of urban runoff by using a SWMM model and Multi-Objective Electimize Optimization Algorithm.
The region 4 in Tehran used as a case study with the goal of reducing the volume of watering the passageways, reducing the maximum rate of out flow, reducing load of TSS in the surface area, and reducing economic cost for construction and maintaining. The use of low-impact development techniques has been studied as two-objective problems and has been tested for precipitation with different return periods.
Also LARS-WG model used as a climate change assessment in the 20 year in the future, for A2 scenery. The result demonstrate that; climate change increasing the rate of out flow 9% to 12 %. Also, the combined effect of climate change and change user will reduce 14% to 16%. The result shows that, the effect of low-impact development techniques will increase with increasing rainfall Return period .
