Operational “Do” methods & Unit prices (unit prices x amounts = costs)ĥ. Framework assessment = Dredging strategyģ. Hydrographic survey and sampling (2 out of 7 catchments are known)Ģ. Costs and thus needed budgets when dredging at a certainįloods are caused when your drainage system does not fulfill your designġ. When to dredge in order to meet your design and hydraulicģ.
Where to dredge in order to meet your design and hydraulicĢ. Relation between data collection and long term planningġ. Identify needed figures for making LUDP’sĤ. Explain the importance of Long term Urban Dredging Plans (LUDP)Ģ. Learning Objectives of the Topic/Session:Īt the end of the session the participants will be able to:ġ. What is the difference between drainage unit and dredging unit? Long term Urban Dredging plans gives insights in needed budgets! Operational excellence - sustainable services - bilateral cooperation Clustering drainage units to dredging units.Powerpoint long term dredging plan using W.I.T. It’s also possible to use Google-maps as basic information for the hydrological units. * Properties (also known as attributes in terms of GIS) of the hydrological units (such as ID, length, maintenance profiles, qualities categories etc.) are defined in the database. * The basic assumption here is to use -as much as possible- information of already existing GIS databases. * The hydrological units are the basis of WIT and are stored in a GIS database (shape format). * Hydrological units (representative of culverts and channels). The following geometric database is required: * What are the costs of the dredging operations? * What is the quality (chemical and physical) of the dredged material? * How much material (sediment) to be dredged? W.I.T.© provides answers to the following questions: The data can be visualized in tables, diagrams, charts and maps. Practical modules allow for the optimisation of maintenance dredging by calculating quantities dredged material, the testing of data quality and planning of maintenance dredging. W.I.T.© is a dynamic web-based GIS application where all data of the drainage system is stored centrally. © offers an unique combinations of tools which makes it possible to process data and prepare long-term dredging plans. English version of the description of the product WIT.
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