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Water District No. 1 of Johnson County

Water District No. 1 of Johnson County. GPS data collection and workflow Spatial Analyses. Valve GPS to GIS process. START. Pathfinder Office: Post processing if shot with SBAS/WAAS otherwise export SSF to SHP. GPS FLOW. Export and split PathFinder SHP into 3 shapefiles : NEW.shp

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Water District No. 1 of Johnson County

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  1. Water District No. 1 of Johnson County GPS data collection and workflow Spatial Analyses

  2. Valve GPS to GIS process START Pathfinder Office: Post processing if shot with SBAS/WAAS otherwise export SSF to SHP GPS FLOW • Export and split PathFinder SHP into 3 shapefiles: • NEW.shp • UPDATED’.shp • IMPORTED.shp. Python SDE valves in GIS Imported Valves Remaining? YES Import points into Trimble GeoXT handheld NO End of Map Page Series? YES Was it missed? Point found in the field? YES NO Append New and Updated SHP to GPS SDE inventory layer Run GPS valve layer split tool using GIS Map Page Tool NO YES Update GPS point Drafting will edit/create Map Page valves in GIS Action by valve maintenance GIS FLOW STOP! No back-up occurs! Was the GeoXT docked in the cradle back at office? End of Map Page Series? NO NO YES YES Queried and found valves in Map Page Series with empty GPS XYZ values? Daily Trimble Pathfinder SSF backup batch processing Windows Scheduler runs batch file with Xcopy command. Files in the GeoXT are processed and backed up daily. An SSF file is created and copied to the network. YES NO Any more Map Page Series to post in GIS? Is it Monday Morning? YES YES NO Export points flagged as ‘IMPORTED’. (no GPS yet) END

  3. consumption/main break analyses Used ArcGIS 9.2 Spatial Analyst extension Point density Reclassification Weighted overlay

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