THE POTENTIAL FOR GREEN ROOFS IN SUSTAINABLE URBAN DRAINAGE SYSTEMS

2016 ◽  
Vol 3 (1) ◽  
Author(s):  
M. J. M. Davis ◽  
A. C. Tapia
Keyword(s):  
Cost Effective ◽  
Green Roofs ◽  
Urban Environments ◽  
Urban Setting ◽  
Water Runoff ◽  
Urban Drainage ◽  
Drainage Systems ◽  
Peak Loads ◽  
Urban Drainage Systems ◽  
Surface Water Runoff

Urban environments tend to lack the capacity to absorb water from precipitation. This is due to vegetated surfaces being replaced by impermeable ones, such as concrete, bitumen or similar. As a result problems can occur, where a period of heavy rainfall coincides with sudden increases in surface water runoff. This in turn can lead to a city’s sewerage system becoming overloaded. Sustainable Urban Drainage Systems (SUDS), are recognized worldwide as a successful manner by which to mitigate this phenomenon. One of the principal components of SUDS are permeable areas in an urban setting, which have the ability to absorb and retain rainfall that would otherwise flow as surface runoff. To date there has been little research into what the effect of a massive increase in green roofs would have for cities in Ecuador. As a developing country, it is not uncommon for cities’ sewerage systems to suffer collapse when faced with sudden rainfall peak loads. It is suggested in this paper, that instead of looking to implement costly sewerage expansion programs, it would be more cost effective to implement city scale green roof systems. The paper sets out to quantify the theoretical effect of such an initiative.

Does upward seepage of river water and storm water runoff determine water quality of urban drainage systems in lowland areas? A case study for the Rhine-Meuse delta

2009 ◽  
Vol 23 (21) ◽  
pp. 3110-3120 ◽  
Author(s):  
Kim Vermonden ◽  
Marion A. A. Hermus ◽  
Marije van Weperen ◽  
Rob S. E. W. Leuven ◽  
Gerard van der Velde ◽  
...  
Keyword(s):  
Water Quality ◽  
River Water ◽  
Storm Water ◽  
Water Runoff ◽  
Urban Drainage ◽  
Drainage Systems ◽  
Storm Water Runoff ◽  
Urban Drainage Systems

Urban drainage system planning and design – challenges with climate change and urbanization: a review

2015 ◽  
Vol 72 (2) ◽  
pp. 165-179 ◽  
Author(s):  
Zeinab Yazdanfar ◽  
Ashok Sharma
Keyword(s):  
Climate Change ◽  
Drainage System ◽  
Cost Effective ◽  
Local Area ◽  
Urban Drainage ◽  
Rapid Urbanization ◽  
Drainage Systems ◽  
Planning And Design ◽  
Urban Drainage Systems ◽  
Fit For Purpose

Urban drainage systems are in general failing in their functions mainly due to non-stationary climate and rapid urbanization. As these systems are becoming less efficient, issues such as sewer overflows and increase in urban flooding leading to surge in pollutant loads to receiving water bodies are becoming pervasive rapidly. A comprehensive investigation is required to understand these factors impacting the functioning of urban drainage, which vary spatially and temporally and are more complex when weaving together. It is necessary to establish a cost-effective, integrated planning and design framework for every local area by incorporating fit for purpose alternatives. Carefully selected adaptive measures are required for the provision of sustainable drainage systems to meet combined challenges of climate change and urbanization. This paper reviews challenges associated with urban drainage systems and explores limitations and potentials of different adaptation alternatives. It is hoped that the paper would provide drainage engineers, water planners, and decision makers with the state of the art information and technologies regarding adaptation options to increase drainage systems efficiency under changing climate and urbanization.

scholarly journals A Multicriteria Planning Framework to Locate and Select Sustainable Urban Drainage Systems (SUDS) in Consolidated Urban Areas

2019 ◽  
Vol 11 (8) ◽  
pp. 2312 ◽  
Author(s):  
Jiménez Ariza ◽  
Martínez ◽  
Muñoz ◽  
Quijano ◽  
Rodríguez ◽  
...  
Keyword(s):  
Urban Areas ◽  
Urban Redevelopment ◽  
Green Roofs ◽  
Urban Drainage ◽  
Residential Areas ◽  
Public And Private ◽  
Drainage Systems ◽  
Urban Drainage Systems ◽  
Public Areas ◽  
Definition Of

The implementation of sustainable urban drainage systems (SUDS) is increasing due to their advantages, which transcend runoff control. As a result, it is important to find the appropriate SUDS locations to maximize the benefits for the watershed. This study develops a multiscale methodology for consolidated urban areas that allows the analysis of environmental, social, and economic aspects of SUDS implementation according to multiple objectives (i.e., runoff management, water quality improvements, and amenity generation). This methodology includes three scales: (a) citywide, (b) local, and (c) microscale. The citywide scale involves the definition of objectives through workshops with the participation of the main stakeholders, and the development of spatial analyses to identify (1) priority urban drainage sub-catchments: areas that need intervention, and (2) strategic urban drainage sub-catchments: zones with the opportunity to integrate SUDS due the presence of natural elements or future urban redevelopment plans. At a local scale, prospective areas are analyzed to establish the potential of SUDS implementation. Microscale comprises the use of the results from the previous scales to identify the best SUDS placement. In the latter scale, the SUDS types and treatment trains are selected. The methodology was applied to the city of Bogotá (Colombia) with a population of nearly seven million inhabitants living in an area of approximately 400 km2. Results include: (a) The identification of priority urban drainage sub-catchments, where the implementation of SUDS could bring greater benefits; (b) the determination of strategic urban drainage sub-catchments considering Bogotá’s future urban redevelopment plans, and green and blue-green corridors; and (c) the evaluation of SUDS suitability for public and private areas. We found that the most suitable SUDS types for public areas in Bogotá are tree boxes, cisterns, bioretention zones, green swales, extended dry detention basins, and infiltration trenches, while for private residential areas they are rain barrels, tree boxes, green roofs, and green swales.

Assessment of urban flooding by dual drainage simulation model RisUrSim

2005 ◽  
Vol 52 (5) ◽  
pp. 257-264 ◽  
Author(s):  
T.G. Schmitt ◽  
M. Thomas ◽  
N. Ettrich
Keyword(s):  
Simulation Model ◽  
Surface Flow ◽  
Water Levels ◽  
Model Verification ◽  
Urban Drainage ◽  
Urban Flooding ◽  
Insurance Company ◽  
Drainage Systems ◽  
Engineering Research ◽  
Urban Drainage Systems

The European research project in the EUREKA framework, RisUrSim is presented with its overall objective to develop an integrated planning tool to allow cost effective management for urban drainage systems. The project consortium consisted of industrial mathematics and water engineering research institutes, municipal drainage works as well as an insurance company. The paper relates to the regulatory background of European Standard EN 752 and the need of a more detailed methodology to simulate urban flooding. The analysis of urban flooding caused by surcharged sewers in urban drainage systems leads to the necessity of a dual drainage modeling. A detailed dual drainage simulation model is described based upon hydraulic flow routing procedures for surface flow and pipe flow. Special consideration is given to the interaction between surface and sewer flow during surcharge conditions in order to most accurately compute water levels above ground as a basis for further assessments of possible damage costs. The model application is presented for a small case study in terms of data needs, model verification and first simulation results.

Long-term versus Real-time Optimal Operation for Gate Regulation during Flood in Urban Drainage Systems

2018 ◽  
Vol 15 (8) ◽  
pp. 750-759 ◽  
Author(s):  
Fatemeh Jafari ◽  
S. Jamshid Mousavi ◽  
Jafar Yazdi ◽  
Joong Hoon Kim
Keyword(s):  
Real Time ◽  
Optimal Operation ◽  
Urban Drainage ◽  
Drainage Systems ◽  
Urban Drainage Systems ◽  
Time Optimal
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