Risk and damage-based optimal design of storm sewer networks using rational and fully dynamic methods, a case study (Tehran region 2)

Sadeghi, Sonia; Samani, Jamal Mohammad Vali; Samani, Hossein Mohammad Vali

doi:10.2166/wst.2022.180

Cited by 2 publications

(1 citation statement)

References 21 publications

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“…For a return period of 50 years, the micro-watershed presents a maximum flow equal to 4.30 m 3 /s (Table 8). The rational method allowed for estimating the average flow of the micro-watersheds with areas smaller than 139 Ha, which according to [70] the application of this method is ideal for watersheds smaller than 25 Km 2 (2500 Ha), demonstrated its efficiency in different studies [71][72][73].…”

Section: Hydrological Studymentioning

confidence: 99%

Stormwater Sewerage Masterplan for Flood Control Applied to a University Campus

et al. 2023

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Floods generated by rain cause significant economic and human losses. The campus of the Escuela Superior Politécnica del Litoral (ESPOL) has a drainage system that conducts stormwater to two discharge points outside the campus. The system works effectively at the macro-drainage level. However, a very crowded area is deficient at the micro-drainage level, which has registered flooding and the proliferation of vectors that affect people’s health. This work aimed to design a masterplan for stormwater sewerage by analyzing the existing situation and applying technical criteria that allow the establishment of solutions and strategies to control floods at the university campus. The methodology consisted of: (i) data collection and processing for the stormwater drainage system diagnosis; (ii) a design proposal for micro-drainage and (iii) a SWOT analysis to propose improvement strategies in water management. The resulting flows for return periods of 5 years, 10 years, and 25 years are 9.67 m3/s, 11.85 m3/s, and 15.85 m3/s, respectively. In the latter, as the most critical area (presence of flooding), the implementation of a trapezoidal channel 80.20 m long, with a capacity of 1.00 m3/s, for a return period of 25 years was proposed. The stormwater masterplan will contribute to the execution of activities within the campus and prevent accidents and the proliferation of diseases, constituting a water-management model that can be replicated locally, regionally, and internationally.

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Section: Hydrological Studymentioning

confidence: 99%

Stormwater Sewerage Masterplan for Flood Control Applied to a University Campus

et al. 2023

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A fuzzy TOPSIS-based approach for prioritizing low-impact development methods in high-density residential areas

Mehri,

Sadeghi,

Mehdy Hashemy Shahdany

2024

Water Science &Amp; Technology

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The study successfully implemented six low-impact development (LID) methods to manage surface runoff in urban areas: green roof, infiltration trench, bio retention cell, rain barrel, green roof combined with infiltration trench, and rain barrel combined with bio-retention cell. Each method has unique benefits in mitigating surface runoff effects in urban environments. The following four indicators were used to evaluate the methods: runoff volume reduction, peak runoff flow rate reduction, economic sustainability, and social sustainability. The study, which lasted approximately 4 months, was conducted in an eastern Tehran metropolis residential area with a mix of old and new buildings. The SWMM model determined runoff volume and peak flow values, and a price analysis list determined the economic index. Local experts completed 25 questionnaires to evaluate the social index. Fuzzy TOPSIS multi-indicator decision criteria were used to prioritize LID methods, and the Rain barrel + Bio retention cell combined scenario emerged as the best option based on all four criteria. The method reduced peak runoff flow by 23.1–66.1% under rainfall with 10-year return periods. The green roof + infiltration trench method had the highest percentage reduction of 2,737 m3, while the infiltration trench had the lowest reduction of 273 m3.

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Risk and damage-based optimal design of storm sewer networks using rational and fully dynamic methods, a case study (Tehran region 2)

Cited by 2 publications

References 21 publications

Stormwater Sewerage Masterplan for Flood Control Applied to a University Campus

Stormwater Sewerage Masterplan for Flood Control Applied to a University Campus

A fuzzy TOPSIS-based approach for prioritizing low-impact development methods in high-density residential areas

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