scholarly journals The model of low impact development of a sponge airport: a case study of Beijing Daxing International Airport

2020 ◽  
Author(s):  
Jing Peng ◽  
Jiayi Ouyang ◽  
Lei Yu
Keyword(s):  
Water Depth ◽  
Stormwater Management ◽  
Storage Tank ◽  
Comprehensive Evaluation ◽  
Low Impact Development ◽  
Management Model ◽  
Storm Water Management Model ◽  
International Airport ◽  
Removal Capacity

Abstract A sponge airport is a new concept of airport stormwater management, which can effectively relieve airport flooding and promote the usage of rainwater resources, often including the application of low impact development (LID) facilities. Although many airports in China have been chosen to implement sponge airport construction, there is a lack of quantitative evaluation on the effect of LID facilities. This paper takes Beijing Daxing International Airport as a case study and develops a comprehensive evaluation on the effect of LID facilities using the storm water management model (SWMM). The performance of four LID design scenarios with different locations and sizes of the rain barrel, the vegetative swale, the green roof, and the storage tank were analyzed. After LID, the water depth of J7 reduces from 0.6 m to 0.2 m, and duration of accumulated water reduces from 5 hours to 2.5 hours. The water depth of J17 reduces from 0.5 m to 0.1 m, and duration of accumulated water reduces from 2 hours to 15 minutes. The capacity of conduits has been greatly improved (Link 7 and Link 17). The application of LID facilities greatly improves rainwater removal capacity and effectively alleviates the waterlogging risk in the study area.

scholarly journals A sewer overflow mitigation during festival and rainfall periods: case study of Karbala

2020 ◽  
Vol 10 (12) ◽  
Author(s):  
Hussein Abed Obaid Alisawi
Keyword(s):  
Water Management ◽  
Water Depth ◽  
Storm Water ◽  
Management Model ◽  
Sewer Pipe ◽  
Sewer System ◽  
Storm Water Management ◽  
Storm Water Management Model ◽  
Sewer Overflow

AbstractThe objective of the present study to assess the performance of a suggested sewer line by using pipe jacking system (PJS) in order to enhance the sewage capacity and mitigate sewer flooding of historic pilgrimage city of Karbala, Iraq. The storm water management model (SWMM5) was used for this purpose. The simulation of exiting sewer system reveals that sewer discharge during peak pilgrimage period is more than 200% of the capacity of existing sewer line. Installation of SLL having a diameter of 2.5 m at a depth ranging between 12 and 22 m by PJS can reduce water depth in sewer pipe by 78%. The reduction of water depth at sewer pipe can reduce sewer overflow up to 70%, if the system is installed and managed properly. The methodology proposed in the paper can be applied in any location having similar problem with necessary modifications.

scholarly journals Simulation of Low Impact Development (LID) Practices and Comparison with Conventional Drainage Solutions

Proceedings ◽  
2018 ◽  
Vol 2 (11) ◽  
pp. 640 ◽  
Author(s):  
Ioannis M. Kourtis ◽  
Vassilios A. Tsihrintzis ◽  
Evangelos Baltas
Keyword(s):  
Water Management ◽  
Design Process ◽  
Low Impact Development ◽  
Green Roofs ◽  
Storm Water ◽  
Management Model ◽  
Storm Events ◽  
Storm Water Management Model ◽  
Runoff Volume ◽  
Peak Runoff

The present work aims at quantifying the benefit of Low Impact Development (LID) practices in reducing peak runoff and runoff volume, and at comparing LID practices to conventional stormwater solutions. The hydrologic-hydraulic model used was the Storm Water Management Model (SWMM5.1). The LID practices modeled were: (i) Green roofs; and (ii) Permeable pavements. Each LID was tested independently and compared to two different conventional practices, i.e., sewer enlargement and detention pond design. Results showed that for small storm events LID practices are comparable to conventional measures, in reducing flooding. Overall, smaller storms should be included in the design process.

scholarly journals Program Development for Detention Pond Sizing Based on Excel Using SWMM Engine

2020 ◽  
Vol 20 (2) ◽  
pp. 229-238 ◽  
Author(s):  
Yonggil Jeong ◽  
Taeuk Kang
Keyword(s):  
Program Development ◽  
Stormwater Management ◽  
Design Method ◽  
Low Impact Development ◽  
Rational Method ◽  
Management Model ◽  
Stormwater Management Model ◽  
Flood Hydrograph ◽  
Detention Pond ◽  
Actual Design

In this study, we developed a program for detention pond sizing based on Excel in order to improve user convenience. The program includes a function for the derivation of flood hydrograph that was embodied by using the rational method hydrograph for connecting the design of the stormwater pipe. The design method of a permeable detention pond that is a kind of low impact development (LID) technique was also implemented. In addition, the operation of the program was found to be stable, and various discharge structures such as weir, pump, and pipe could be easily conducted using the engine of the stormwater management model (SWMM). The developed detention pond sizing program was applied to the actual design. Subsequently, similar results were derived by comparing with the actual design, and it was found that the program was appropriate.

scholarly journals Evaluation of Airport Environmental Carrying Capacity: A Case Study in Guangzhou Baiyun International Airport, China

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Lili Wan ◽  
Qiuping Peng ◽  
Tianci Zhang ◽  
Zhan Wang ◽  
Yong Tian
Keyword(s):  
Carrying Capacity ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Projection Pursuit ◽  
Indicator System ◽  
Development Mode ◽  
The Sustainable Development ◽  
International Airport ◽  
Environmental Carrying Capacity

In order to clarify the comprehensive operational capabilities of the airport and better plan the sustainable development mode of the airport, this paper studies the evaluation method of airport environmental carrying capacity. First, this paper proposes the concept of airport environmental carrying capacity by taking into account the complex characteristics of airports affected by multiple factors and then selects 16 representative evaluation indicators to construct an indicator system based on the Driving Force-Pressure-State-Response (DPSR) framework. Finally, the accelerated genetic algorithm-projection pursuit model is established to model a comprehensive evaluation index, which is used to calculate the airport environmental carrying capacity (AECC). The results of the case study show that the AECC of Guangzhou Baiyun International Airport (CAN) decreased year by year from 2008 to 2017, which is in line with the coordinated development level of CAN. By analysing the changing mechanism of AECC and indicators, we get 6 key influencing indicators that led to the continuous decline of AECC and put forward some political suggestions to improve the AECC.

scholarly journals Assessing the Sensitivity of SWMM to Variations in Hydrological and Hydraulic Parameters: A Case Study for the city of Istanbul

2016 ◽  
Vol 18 (4) ◽  
pp. 831-841 ◽  
Keyword(s):  
Land Use ◽  
Overland Flow ◽  
Hydrological Model ◽  
Management Model ◽  
Hydraulic Parameters ◽  
Storm Water Management Model ◽  
Parametric Sensitivity ◽  
The City ◽  
Runoff Production

<p>Overland flow is highly affected by increasing urbanization, and variations in land use and climatic variables, especially in the last few decades. This necessitates the development of modeling approaches for planning and management of catchments that play a significant role on water supply. The main objective of this study is to determine the effects of major hydrological and hydraulic parameters on runoff production in the Alibeyköy Reservoir catchment area in Istanbul. Storm Water Management Model (SWMM) is chosen to develop the catchment hydrological model and the model’s sensitivity is assessed based on the variations in eight major parameters of the model affecting runoff production. 55 years of time series precipitation data are used for model simulations. GIS-based maps including land use and land cover information are used to determine the imperviousness values required for SWMM. A one-at-a-time parametric sensitivity analysis is carried out to determine the most significant parameters affecting the model outcomes. Analysis results reveal that area of subcatchments, precipitation and conduit depth are the most significant parameters in SWMM affecting runoff production. Percent imperviousness and percent slope are the least significant parameters amongst other parameters influencing the output.</p>

scholarly journals Utilizing GIS in the development of detailed distribution urban drainage models

2021 ◽  
Author(s):  
Zakia R. Alam
Keyword(s):  
Stormwater Management ◽  
Management Practices ◽  
Comprehensive Evaluation ◽  
Evaluation Criteria ◽  
Model Performance ◽  
Digital Data ◽  
Management Systems ◽  
Urban Drainage ◽  
Stormwater Management Practices

Stormwater management practices can mitigate the undesirable impacts of urbanization. Urban drainage models can play a significant role in comprehensive evaluation of stormwater management systems. This thesis presents a methodology for the development of a detailed distributed urban drainage model using Geographic Information System (GIS) databases. The approach incorporates delineation of spatial variables (subcatchment outlets, width, slope etc.) and other model inputs from digital data and assigns them to the GIS database by executing developed Python 2.7 scripts. The proposed methodology is applied on a case study area in Mississauga, Ontario. Observed rainfall data are used as model input and simulation is performed using PCSWMM 5.1.1279. The model performance is evaluated by comparing the uncalibrated simulated discharge with the observed one. The simulated hydrographs are of good fit with the observed hydrographs. The evaluation criteria justify the use of extracted and assumed parameters and the reliability of the developed methodology.

scholarly journals Avaliação do desempenho de telhados verdes e reservatórios de lote no amortecimento de vazões de pico em uma bacia urbana

Revista DAE ◽  
2020 ◽  
Vol 68 (227) ◽  
pp. 35-49
Author(s):  
Júlia Baptistella Machado Dutra ◽  
Talita Fernanda das Graças Silva
Keyword(s):  
Water Management ◽  
Low Impact Development ◽  
Storm Water ◽  
Management Model ◽  
Storm Water Management ◽  
Storm Water Management Model ◽  
Belo Horizonte

Mudanças no uso do solo e impermeabilização das superfícies têm aumentado a ocorrência de inundações nas cidades brasileiras. Este trabalho investiga como telhados verdes e reservatórios de lote minimizam inundações urbanas ao reduzir o escoamento superficial e a vazão de pico. A bacia do córrego Engenho Nogueira (Belo Horizonte, MG) foi escolhida como estudo de caso. O Storm Water Management Model foi utilizado para simular três cenários: C0, situação atual; C100 e C50, implantando as técnicas, respectivamente, em 100% e 50% das áreas potenciais. O escoamento superficial na bacia foi reduzido em até 22,3% devido ao bom desempenho dos telhados verdes, com escoamento superficial nulo e volumes drenados até 25,5% inferiores ao volume precipitado. Os reservatórios de lote apresentaram baixo desempenho devido ao volume insuficiente. A vazão de pico no exutório da bacia foi reduzida em no máximo 11,6% (C100, chuva com tempo de retorno de 10 anos e duração de 10 minutos). Palavras-chave: Low Impact Development. Técnicas compensatórias. SWMM. Drenagem urbana.

scholarly journals Simulating the effects of low impact development approaches on urban flooding: a case study from Tehran, Iran

2019 ◽  
Vol 80 (8) ◽  
pp. 1591-1600 ◽  
Author(s):  
Maryam Movahedinia ◽  
Jamal Mohammad Vali Samani ◽  
Fakhreddin Barakhasi ◽  
Saleh Taghvaeian ◽  
Raffi Stepanian
Keyword(s):  
Urban Areas ◽  
Peak Flow ◽  
Low Impact Development ◽  
Hydraulic Modeling ◽  
Decision Makers ◽  
Urban Flooding ◽  
Urban Stormwater ◽  
Rainfall Events ◽  
Storm Water Management Model

Abstract Low impact development (LID) methods have been shown to be efficient in reducing the peak flow and total volume of urban stormwater, which is a top priority for effective urban stormwater management in many municipalities. However, decision-makers need information on the effects of LIDs and their associated costs before allocating limited resources. In this study, the Storm Water Management Model (SWMM) was used to investigate the effects of five different LID scenarios on urban flooding in a district in Tehran, Iran. The LID scenarios included rain barrel (RB) at two sizes, bio-retention cell (BRC), and combinations of the two structures. The results showed that significant node flooding and overflow volume would occur in the study area under the existing conditions, especially for rainfall events with longer return periods. BRC and combinations of BRC and RBs were the most effective options in reducing flooding, while the smaller-size RB was the cheapest alternative. However, normalized cost, obtained through dividing the total cost by the percent reduction in node flooding and/or overflow volume, was smallest for BRC. The results of this study demonstrate how hydraulic modeling can be combined with economic analysis to identify the most efficient and affordable LID practices for urban areas.

Physical design optimization of an urban runoff treatment system using Stormwater Management Model (SWMM)

2015 ◽  
Vol 72 (10) ◽  
pp. 1747-1753 ◽  
Author(s):  
J. A. S. Tobio ◽  
M. C. Maniquiz-Redillas ◽  
L. H. Kim
Keyword(s):  
Stormwater Management ◽  
Pearson Correlation ◽  
Low Impact Development ◽  
Stormwater Runoff ◽  
Physical Design ◽  
Management Model ◽  
Storm Events ◽  
Original Design ◽  
Stormwater Management Model ◽  
Highly Correlated

The study presented the application of Stormwater Management Model (SWMM) in determining the optimal physical design properties of an established low impact development (LID) system treating road runoff. The calibration of the model was based on monitored storm events occurring from May 2010 to July 2013. It was found that the total suspended solids was highly correlated with stormwater runoff volume and dominant heavy metal constituents in stormwater runoff, such lead, zinc and copper, with a Pearson correlation coefficient ranging from 0.88 to 0.95 (P &lt; 0.05). Reducing the original ratio of the storage volume to surface area (SV/SA) of the facility and depth by 25% could match the satisfactory performance efficiency achieved in the original design. The smaller SV/SA and depth would mean a less costly system, signifying the importance of optimization in designing LID systems.

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