Issue link: https://read.dmtmag.com/i/41362
After utilizing the mobile GIS as part of the detailed planning, BWS crews do the "heavy lifting" required to stop the leak and fix the ruptured main to return nor- mal water service to all affected BWS customers. Enterprise GIS BWS uses IBM's Maximo software for planning and scheduling work orders. Maximo has been extended with an embedded GIS viewer, GISMO, that allows plan- ners to create and view work orders on an interactive map display. Planners can assign new work orders to BWS assets in the map display. They also can view the work order in relation to work history in the area as well as in the context of critical-care facilities and other important GIS features. 1:00 p.m. Redlining and Editing By 1 p.m., the BWS field crew has repaired the water-main rupture, and water service has been restored for all critical-care facilities, businesses and residential customers. Now BWS inspectors use the enterprise BWS Redliner system to mark-up a map of the water system to communicate infrastructure changes to GIS editors. The Redliner, part of the mobile GIS, provides map sketching and attribute-update tools to field crews. Redlines are automatically submitted to GIS editors who use a desktop GIS to maintain the water-system network in a distributed, multi-versioned geodatabase environment. To date, BWS staff have created more than 10,000 redlines, helping to maintain an accurate and complete geodatabase of water-distribution features. "Our GIS provides the spatial context for all our work activities," says Ellen Hirayama, GIS manager. "It is criti- cally important for us to have QA/QC built into our opera- tions and business practices, because people are relying on GIS maps and information products every day." Enterprise GIS Inspectors use the BWS Redliner to report data changes that result from the water-main repair. New assets may have been installed; water lines may have been re- routed. The Redliner is used to communicate these data changes to GIS editors back at BWS headquarters. GIS editors retrieve redline records directly into their Esri desktop editing environment and use map sketches and attribute changes contained in the redlines to update the enterprise geodatabase. 5:00 p.m. Updated BWS Water-Network Dataset Completion of the redlining and editing process means the BWS water-network dataset accurately reflects any infrastructure changes made by field crews Lyann Okada is civil engineer/project manager, Honolulu BWS; e-mail: lokada@hbws.org. Dan Mahar and Keith Croteau are senior developers, GIS Solutions; e-mail: dmahar@gis-solutions.com and kcroteau@gis-solutions.com, respectively. lA main-break event disrupts the morning commute in Honolulu. during the repair process. An accurate, up-to-date data- set will provide mission-critical information the next time an incident occurs. It's equally important for long-range planning and water-resource engineering activities. "Daily work activities provide direction for our long-range planning," notes Tom Otaguro, systems engineer. "Whenever a leak or break occurs, we re-run hydraulic models to ensure system performance and compliance." GIS and hydraulic modeling are tightly integrated. Models are built and calibrated with information from field surveys, consumption and demand figures, and SCADA-based operational data. Enterprise GIS Having an accurate and up-to-date enterprise geo- database is critical to support all BWS GIS users. Accurate data are important for real-time decision support as well as input for systems used to support long-term asset and resource planning. For example, BWS engineers need accurate water- network infrastructure data to support hydraulic model- ing. Correct data are vital to long-range water-network capacity and water-consumption planning, ensuring that the homes, businesses and government facilities served by BWS have a dependable water supply. AUGUST 2O11 / WWW . GEOPLA CE . COM 17