15 th International İstanbul Scientific Research Congress , İstanbul, Türkiye, 24 - 25 Mart 2025, cilt.1, ss.605-611, (Tam Metin Bildiri)
Floods are becoming a significant problem
nowadays. Although floods are generally faced within the river route,
especially due to the climate change, inundation produced by excessive and
intensive rain cause problems in urban area. Due to the increase in impermeable
areas in suburban, sudden heavy rains may cause floods under bridges, in
basements or in potholes resulting with large financial losses. Traditional
protection method at first coming into the mind that can be taken against the
flood experienced in urban area is usually rainwater collection pipelines.
However, traditional methods sometimes cannot produce sufficient solutions
where in urban with unplanned settlements. It is thought that nature-based
solutions proposed in recent years can be operative against floods experienced
in those areas. These solutions provide water percolation into the soil on
contrary by collecting and carrying overflowing water away as traditional
system suggestion.
The term “Low Impact Development” (LID) is
preferred in English terminology for nature-based solution methods. Since the
terminology on the subject has not yet matured in Turkish literature, the terms
“environmentally friendly” or “environmentally sensitive” were preferred in
this study. “Environmentally Friendly Applications (EFAP)” are designed to be
far from traditional structures, not harming nature, and intertwined with
nature. The main ones are; “green roofs”, “leakage pools” and “permeable
asphalt”.
In this study, Türközü suburb in Mamak district
of Ankara province, which is frequently exposed to floods, was selected as the
case study area. Crucial parameters for the design were obtained using an
open-source software, SWMM (Storm Water Management Model), developed by the
Environmental Protection Agency (EPA) of the United States. Literature review
shows that water flow in the basin is successfully simulated by the software.
The results obtained within the scope of this study evaluate the performance of
EEFAPs against floods occurring in a city with an irregular layout.