Water & Wastewater Asia Sep/Oct 2018

Water & Wastewater Asia • September / October 2018 28 | FROM THE GROUND Hydraul ic model l ing for Esri © ArcGIS users In this first of the two parts, Bentley Systems shows how modelers of water and wastewater systems and GIS professionals can leverage enterprise Esri geospatial data repositories and ArcGIS technology in an immersive single modelling application. By Gregg Herrin, Director, Product Management; and Cyndi Smith, Senior Industry Marketing Director W ater and wastewater networks are inherently geospatial — comprising of interconnected assets that are often underground, and buried beneath urban and rural communities. To effectivelymanage these assets, a utilitymust know what they are, where they are located, and how they are connected both physically and functionally. To optimise these assets for its customers, a utility must also know how their water and wastewater networks operate in various conditions. Two systems are at the core of serving these related needs. A geographic information system (GIS), such as Esri’s ArcGIS, manages all types of geospatial business data, including land use and parcel information, as well as the locations and basic characteristics of water and wastewater network assets. A hydraulic modelling system (HMS), such as Bentley WaterGEMS or SewerGEMS, provides additional hydraulic characteristics for the network elements and offers engineering insight into the complex behavior that defines how that network performs. These two complementary technologies offer analytical solutions for planning, design, and operational intelligence for water and wastewater utilities. The intention of this article is to demonstrate how modelers of water and wastewater systems and GIS professionals can leverage enterprise Esri geospatial data repositories and ArcGIS technology in an immersive single modelling application. This integration ensures that utilities attain the most value from their investment in GIS technology and related geospatial business data through their hydraulic modelling analytical capabilities. Water and wastewater modelling applications can seamlessly provide advanced hydraulic modelling capabilities through the ArcGIS platform that is familiar to Esri users. The applications can take advantage of any geospatial data managed in Esri’s geodatabases and shapefile formats. This capability enables the hydraulic modelling and GIS communities to simultaneously build and update network models using data from Esri geodatabases and geometric networks as well as manage hydraulic network model data in an Esri geodatabase. Additionally, these users can modify network and geospatial data using ArcGIS tools, the full power of ArcGIS for spatial analysis, and the analytical capabilities of water and wastewater modelling applications, such as WaterGEMS and SewerGEMS, to simulate network models directly within the ArcGIS platform.

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