What is Urban
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A Source model consists of two parts - a project and one or more scenarios. A project is a wrapper for a collection of one or more scenarios. It identifies the project name, description, and any scenarios associated with the project.
A scenario is the representation of a node-link network in Source and describes the major processes in a river system or catchment that are modelled. This includes catchment and sub-catchment definition, rainfall runoff and constituent generation models, data sets and parameters.
Three scenario types are available in the core Source framework.
- A schematic scenario is primarily concerned with modelling longer time-scales;
- An operations scenario is primarily concerned with shorter time-scales. It utilises facilities for forecasting and working with unaccounted differences, and typically makes heavy use of the Tabular Editor; and
- A catchments scenario which deals with the management of upland catchment processes.
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Developer?
Urban Developer is an integrated urban water cycle modelling (IUWM) tool designed to meet the needs of water professionals facing the challenges of integrated water cycle service planning and assessment arising from the ever-increasing pressures on Australia’s water resources.
Urban Developer allows exploration of urban water systems in a level of detail and with a degree of flexibility not offered by existing integrated models.
Urban Developer provides the ability to simulate all three urban water cycle service networks (water supply, stormwater, wastewater), ranging in scale from a single allotment up to large clusters or small subdivisions.
Allotment Scale
The allotment scale represents household-level water supply, water use and water disposal services, and allows you to evaluate the cumulative effects of individual water use actions. For example, with Urban Developer's Water Use model, you can examine the cumulative effect of installing water-saving showerheads or dual-flush toilets in individual households.
Cluster Scale
A small grouping of 2 - 30 allotments, businesses and/or commercial premises.The cluster scale is particularly useful for exploring decentralised supply, treatment, reuse, and disposal options, as it enables potential for some economies of scale in infrastructure delivery, and ameliorates some of the need for expensive centralised distribution and collection infrastructure.
Subdivision and Suburb Scale
Beyond the cluster scale are the subdivision and suburb scales. Again, there is no clear delineation between these terms as there can be crossovers between them.
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Urban scenarios model water networks as a series of nodes and links. This lumped approach means that while some node models may have a spatial component, all activity at these nodes is assumed to occur at a single point. Modelling that requires spatial variation should use the functionality available in Source catchment scenarios.
Urban Scenarios
A Source model consists of two parts - a project and one or more scenarios. A project is a wrapper for a collection of one or more scenarios. It identifies the project name, description, and any scenarios associated with the project.
A scenario is the representation of a node-link network in Source and describes the major processes in a river system or catchment that are modelled. This includes catchment and sub-catchment definition, rainfall runoff and constituent generation models, data sets and parameters.
Three scenario types are available in the core Source framework.
- A schematic scenario is primarily concerned with modelling longer time-scales;
- An operations scenario is primarily concerned with shorter time-scales. It utilises facilities for forecasting and working with unaccounted differences, and typically makes heavy use of the Tabular Editor; and
- A catchments scenario which deals with the management of upland catchment processes.
An Urban demand scenario, currently available in the same location as the others when the Urban plugin is installed, is used to represent the integrated urban water cycle networks (water supply, stormwater, wastewater), ranging in scale from a single allotment up to large clusters or small subdivisions.
Urban Demand
Urban Developer represents demand is represented by simulating individual end-uses at the household level. The end-use categories included in Urban Developer are:
• outdoor;
• shower;
• washing machine;
• toilets and
• indoor hand taps.
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Acknowledgements
This material has been adapted from:
eWater Cooperative Research Centre (2011) Urban Developer User Guide, eWater Cooperative Research Centre, Canberra. ISBN 978-1-921543-40-1