urban drainage Articles

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Modelling Sustainable Urban Drainage Structures

by Innovyze  (Jan. 1, 2002)

Introduction “Sustainable Development” is an increasingly important concept in most industries today, and one in which the water industry has been making rapid progress for over a decade. In countries around the world, including the USA, Europe, and Australia, Sustainable Urban Drainage (SUD) structures - permeable pavements, ponds, and the like - ...

GIS applications in urban drainage master planning

by XP Solutions  (Mar. 2, 2012)

Introduction: The City of Stratford, Ontario, located 150 km (94 mi.) west of Toronto, initiated the development of an infrastructure asset database in the early 1990’s and continues to develop digital mapping to support the maintenance and management of municipal services. In continuing these efforts, the City initiated the City-Wide Storm ...

Urban Hydrology

by IWA Publishing  (Jan. 13, 2012)

The provision and disposal of water for urban populations is as old as the development of cities themselves. Unrestrained development has made the task ever more difficult and hydrologists and civil engineers face constant pressures to stay on top of the challenges of providing sufficient supplies and adequate treatment/disposal of effluents. ...

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 ...

Urban drainage models – simplifying uncertainty analysis for practitioners

by IWA Publishing  (Nov. 29, 2013)

There is increasing awareness about uncertainties in the modelling of urban drainage systems and, as such, many new methods for uncertainty analyses have been developed. Despite this, all available methods have limitations which restrict their widespread application among practitioners. Here, a modified Monte-Carlo based method is presented that ...

A spatial-temporal rainfall generator for urban drainage design

by IWA Publishing  (Jul. 4, 2013)

The work presented here is a contribution to the Thames Water project of improving the Counters Creek catchment sewerage system in London. An increase in the number of floods affecting basements in the area has indicated the need for improvements to the system. The cost of such improvements could be very high, and as such it is important to ...

Real-time forecasting urban drainage models: full or simplified networks?

by IWA Publishing  (Nov. 13, 2010)

Lead time between rainfall prediction results and flood prediction results obtained by hydraulic simulations is one of the crucial factors in the implementation of real-time flood forecasting systems. Therefore, hydraulic simulation times must be as short as possible, with sufficient spatial and temporal flood distribution modelling accuracy. One ...

Real-time forecasting urban drainage models: full or simplified networks?

by IWA Publishing  (Oct. 1, 2010)

Lead time between rainfall prediction results and flood prediction results obtained by hydraulic simulations is one of the crucial factors in the implementation of real-time flood forecasting systems. Therefore, hydraulic simulation times must be as short as possible, with sufficient spatial and temporal flood distribution modelling accuracy. One ...

Automatic, semi-automatic and manual validation of urban drainage data

by IWA Publishing  (Sep. 1, 2010)

Advances in sensor technology and the possibility of automated long distance data transmission have made continuous measurements the preferable way of monitoring urban drainage processes. Usually, the collected data have to be processed by an expert in order to detect and mark the wrong data, remove them and replace them with interpolated data. In ...

A new litter trap for urban drainage systems

by IWA Publishing  (Feb. 1, 1999)

ABSTRACTLitter is generated in shopping areas and is washed or blown into stormwater drainage systems. These convey the litter to open water bodies leading to the accumulation of non-biodegradable litter on the banks and beaches of urban waterways and bay foreshores. The increasing public awareness of the problem prompted the State Government of ...

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