urban drainage Articles

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Integrated hydraulic modelling of water supply and urban drainage networks for assessment of decentralized options

by IWA Publishing  (Dec. 15, 2014)

The impact of climate change, water scarcity, land use change, population growth and also population shrinking can only be predicted with uncertainties. Especially for assets with a long planning horizon this is a critical part for planning and design. One solution is to make centralized organized water infrastructure with a long-planning ...

Urban-Water Harmony model to evaluate the urban water management

by IWA Publishing  (Dec. 15, 2014)

Water resources in many urban areas are under enormous stress due to large-scale urban expansion and population explosion. The decision-makers are often faced with the dilemma of either maintaining high economic growth or protecting water resources and the environment. Simple criteria of water supply and drainage do not reflect the requirement ...

Simplifying impact of urban development on sewer systems

by IWA Publishing  (Dec. 15, 2014)

Linking urban development and urban drainage models is a more and more popular approach when impacts of pavement of urban areas on sewer system performance are evaluated. As such an approach is a difficult task, this is not a feasible procedure for everyday engineering practice. We propose an alternative method, based on a developed simple ...

Predicting infiltration pollutant retention in bioretention sustainable drainage systems: model development and validation

by IWA Publishing  (Dec. 22, 2014)

A major problem of increased urbanization is the rise in pollution caused by runoff. A solution to this problem can be found through the use of Sustainable Urban Drainage Systems (SUDS) such as rain gardens. Previous research has focused primarily on hydrologic design including the degree to which groundwater is replenished by these systems and ...

Multi-objective rehabilitation of urban drainage systems under uncertainties

by IWA Publishing  (Sep. 25, 2014)

Urban drainage systems are subject to many drivers which can affect their performance and functioning. Typically, climate change, urbanisation and population growth along with aging of pipes may lead to uncontrollable discharges and surface flooding. So far, many researchers and practitioners concerned with optimal design and rehabilitation of ...

Comparative analysis of the outflow water quality of two sustainable linear drainage systems

by IWA Publishing  (Oct. 29, 2014)

Three different drainage systems were built in a roadside car park located on the outskirts of Oviedo (Spain): two sustainable urban drainage systems (SUDS), a swale and a filter drain; and one conventional drainage system, a concrete ditch, which is representative of the most frequently used roadside drainage system in Spain. The concentrations ...

Application of the urban water use model for urban water use management purposes

by IWA Publishing  (Aug. 7, 2014)

The aim of this work is to present an application of the urban water use (UWU) model, which is a support decision tool to define the best group of efficient water use measures for UWU management purposes. Therefore, the UWU was developed under integrated urban water management (IUWM) and strategic planning principles to promote a systemic ...

Characterization of the hydraulic performance of a gully under drainage conditions

by IWA Publishing  (Jun. 25, 2014)

During rainfall events with low return periods (1–20 years) the drainage system can provide some degree of protection to urban areas. The system design is based not only on good hydraulic performance of the surface and the sewer network but also on their linking elements. Although the linking elements are of utmost importance as they ...

An influence diagram for urban flood risk assessment through pluvial flood hazards under non-stationary conditions

by IWA Publishing  (Sep. 30, 2014)

Urban flooding introduces significant risk to society. Non-stationarity leads to increased uncertainty and this is challenging to include in actual decision-making. The primary objective of this study was to develop a risk assessment and decision support framework for pluvial urban flood risk under non-stationary conditions using an influence ...

An integrated cellular automata evolutionary-based approach for evaluating future scenarios and the expansion of urban drainage networks

by IWA Publishing  (Mar. 26, 2014)

The paper describes and demonstrates an integrated cellular automata evolutionary-based approach for evaluating future scenarios including the expansion of urban drainage networks. The approach can be used to derive a drainage network layout based on future land use scenarios. Two techniques are used to derive the layout of the system: one using ...

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