scholarly journals Hydraulic design model of underground bioretention system: a source control measure for wet weather urban stormwater management

2021 ◽  
Author(s):  
Zulhash Uddin
Keyword(s):  
Water Pollution ◽  
Stormwater Management ◽  
Control Measure ◽  
Low Impact Development ◽  
Design Model ◽  
Source Control ◽  
Bioretention System ◽  
Pollution Problem ◽  
Hydraulic Design ◽  
Wet Weather

The conventional practices of urbanization, land use strategies and stormwater management are considerably increasing the risk of wet weather flooding, downstream erosion and water pollution. To minimize the water pollution problem associated with the urban development various concepts of low impact development are being implemented. The city of Toronto has installed an underground bioretention system at Queensway Avenue. The hydraulic design criteria and specification of the underground bioretention system are not yet well developed. Hydraulic design model is developed using five mass balance equations of the five components of bioretention system. All design water depth variables of the bioretention system are solved simultaneously using Matlab program. An application of the model in Toronto is included to illustrate the design of the underground bioretention system.

scholarly journals Hydraulic design model of underground bioretention system: a source control measure for wet weather urban stormwater management

2021 ◽  
Author(s):  
Zulhash Uddin
Keyword(s):  
Water Pollution ◽  
Stormwater Management ◽  
Control Measure ◽  
Low Impact Development ◽  
Design Model ◽  
Source Control ◽  
Bioretention System ◽  
Pollution Problem ◽  
Hydraulic Design ◽  
Wet Weather

The conventional practices of urbanization, land use strategies and stormwater management are considerably increasing the risk of wet weather flooding, downstream erosion and water pollution. To minimize the water pollution problem associated with the urban development various concepts of low impact development are being implemented. The city of Toronto has installed an underground bioretention system at Queensway Avenue. The hydraulic design criteria and specification of the underground bioretention system are not yet well developed. Hydraulic design model is developed using five mass balance equations of the five components of bioretention system. All design water depth variables of the bioretention system are solved simultaneously using Matlab program. An application of the model in Toronto is included to illustrate the design of the underground bioretention system.

Low Impact Development (LID) Approaches in Sustainable Stormwater Management

2013 ◽  
Vol 368-370 ◽  
pp. 297-301
Author(s):  
Chun Xiao Wang
Keyword(s):  
Stormwater Management ◽  
Low Impact Development ◽  
Land Development ◽  
Source Control ◽  
High Point ◽  
Research Status ◽  
The Usa ◽  
Sustainable Stormwater Management

Low Impact Development (LID), with a core conception of maintaining urban hydrological recycle through source control, is an approach to land development that works with nature to manage stormwater as close to its source as possible. This paper summarized the concept, principle, development and research status of LID, analysed the LID approaches in High Point Community in the USA, aiming to forward experience of sustainable stormwater management.

The Role of Water Balance Modelling in the Transition to Low Impact Development

2004 ◽  
Vol 39 (4) ◽  
pp. 331-342 ◽  
Author(s):  
Patrick Graham ◽  
Laura Maclean ◽  
Dan Medina ◽  
Avinash Patwardhan ◽  
Gabor Vasarhelyi
Keyword(s):  
Water Balance ◽  
Stormwater Management ◽  
Local Governments ◽  
Management Practices ◽  
Low Impact Development ◽  
Green Roofs ◽  
Source Control ◽  
Volume Control ◽  
Extreme Rainfall Events ◽  
Control Approach

Abstract Low impact development (LID) is increasingly being viewed by local governments and developers alike as a viable approach to stormwater management that can effectively protect aquatic habitat and water quality. LID relies on distributed runoff management measures that seek to control stormwater volume at the source by reducing imperviousness and retaining, infiltrating and reusing rainwater at the development site. Early conventional stormwater management practices tended to focus on stormwater quantity and controlling a few extreme rainfall events, whereas the more frequent storms, which represent the majority of total runoff volume, carry most of the pollutants, and control the geomorphology of streams, were addressed in stormwater quality design practiced during the last decade. These frequent events are most effectively managed with a volume control approach, often described as stormwater source control or Low impact development (LID). Such an approach is described in this paper, demonstrating how water balance modelling can be an effective tool for evaluating and supporting implementation of LID options such as bioretention, pervious paving, numerous types of infiltration systems, rainwater reuse and green roofs. It also discusses recently developed water balance modelling software, including an Internet-based planning tool and a design optimization tool.

scholarly journals Development of detailed distributed urban drainage models using remote sensing and GIS data.

2021 ◽  
Author(s):  
Moh Moh Lin Khin
Keyword(s):  
High Resolution ◽  
Image Classification ◽  
Stormwater Management ◽  
Satellite Image ◽  
Low Impact Development ◽  
Remote Sensing And Gis ◽  
Source Control ◽  
Urban Drainage ◽  
Gis Data ◽  
Research Findings

Surface runoff source control such as Low Impact Development (LID) techniques are being used as retrofit options for older developed areas that lack available land to implement conventional practices such as stormwater management ponds. The complexity of the catchment area requires detailed distributed urban drainage models, which need high resolution land cover information, to accurately estimate the benefits that LIDs provide. This thesis explores the use of high resolution WorldView‐2 satellite image in urban drainage modelling. A proposed two‐stage image classification method achieved 83% in image classification accuracy. The classified image was then used to model streets, where the drainage is provided by curb and gutter, roadside ditches and LID. The developed urban drainage models gave comparable but mixed results for different drainage systems compared to the observed runoff data and Geographic Information System (GIS)‐developed models. This research findings provide guidance to modellers in developing detailed distributed urban drainage models.

scholarly journals Development of detailed distributed urban drainage models using remote sensing and GIS data.

2021 ◽  
Author(s):  
Moh Moh Lin Khin
Keyword(s):  
High Resolution ◽  
Image Classification ◽  
Stormwater Management ◽  
Satellite Image ◽  
Low Impact Development ◽  
Remote Sensing And Gis ◽  
Source Control ◽  
Urban Drainage ◽  
Gis Data ◽  
Research Findings

Surface runoff source control such as Low Impact Development (LID) techniques are being used as retrofit options for older developed areas that lack available land to implement conventional practices such as stormwater management ponds. The complexity of the catchment area requires detailed distributed urban drainage models, which need high resolution land cover information, to accurately estimate the benefits that LIDs provide. This thesis explores the use of high resolution WorldView‐2 satellite image in urban drainage modelling. A proposed two‐stage image classification method achieved 83% in image classification accuracy. The classified image was then used to model streets, where the drainage is provided by curb and gutter, roadside ditches and LID. The developed urban drainage models gave comparable but mixed results for different drainage systems compared to the observed runoff data and Geographic Information System (GIS)‐developed models. This research findings provide guidance to modellers in developing detailed distributed urban drainage models.

A study on the effects of urban runoff controls in the sandsli research catchment, Bergen, Norway

1997 ◽  
Vol 36 (8-9) ◽  
pp. 379-384
Author(s):  
Sveinn T. Thorolfsson
Keyword(s):  
Ground Water ◽  
Stormwater Management ◽  
Drainage System ◽  
Urban Runoff ◽  
Source Control ◽  
Urban Stormwater ◽  
Urban Stormwater Management ◽  
Water Conditions

This paper describes a case study on a new alternative drainage system for urban stormwater management, the so-called “Sandsli-system”. The aim of this study is to evaluate the Sandsli system and the effects of the solution on ground water conditions. The study is carried out in the Sandsli research catchment in Bergen, Norway. The idea behind the “Sandsli-system is not to mix the polluted and the clean stormwater combined with a source control for both stormwater quantity and quality. The clean stormwater is percolated as quickly as possible, while the polluted stormwater is collected and conducted to an appropriate site for disposal or treatment. The Sandsli-system was developed as an alternative drainage system to the conventional drainage system. The system has been functioning satisfactorily since 1981 to date. The advantages of the use of the Sandsli-system is highlighted i.e. recharging the stormwater to the ground water. The Sandsli-system is appropriate to locations with climate and geology similar to that found in the coastal part of Norway

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