Data and geoprocessing

To implement the Nighttime Flow Analysis solution at your utility, follow the steps below to update the data and geoprocessing models:

Data

  1. In Windows Explorer, browse to the download's Maps and GDBs.
  2. Replace the WaterDistributionNetwork.gdb with a copy of your water distribution network. You may choose to point to an existing geodatabase; placing one in this folder is not required.
  3. Open the DMA.gdb and delete the current features and load your data for the following layers:
    • DMA
    • FlowMeters

Geoprocessing models

  1. In Windows Explorer, browse to the download's Maps and GDBs.
  2. Expand the DMA_Planner toolbox and open the 1-SubDMA Planner geoprocessing model in edit mode.
  3. Open and change the output coordinate system of both the Project Boundaries and Project Pipe Location processes to the coordinate system of your water network.
  4. Open and update Geometric Network with the path to your geometric network.

Data models

If your data schema differs from the sample schema provided, follow the steps below to match your data schema:

  1. Update the following inputs to point to your data layers:
    • Main
    • SystemValve
  2. Change the following process to select the proper data from the geometric network:
    • Select Mains
    • Select Laterals
  3. Change the follow processes so the SQL expression matches your data:
    • Closed Valves Expression
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