Performing a valve criticality evaluation based on an external GIS layer

Step-by-step guide

The InfoWater Pro Criticality Assessment Manager app, also known as CAM, can carry out a detailed, comprehensive assessment of the hydraulic impact of valve operations in the water system. This example performs a valve criticality evaluation based on an external GIS layer.

1. Double-click the desired project .aprx file to open ArcGIS Pro.
2. Click the InfoWater Pro tab to open the InfoWater Pro ribbon.
3. In the Project panel, click Initialize.

Start by running a simulation for the current scenario:

4. On the InfoWater Pro ribbon, Analysis panel, click Run to open the Run Manager.
5. Click Run to run the simulation and create an output for the current scenario.
6. Close the Run Manager.

To open the CAM:

7. On the InfoWater Pro ribbon, in the Project panel, click Apps.
8. From the Apps Manager, select Criticality Assessment Manager.

9. Click Run.
10. In the CAM app, switch to the Based on GIS Layer Elements tab.

To set the data sources for valves to be used in the CAM assessment:

11. Click Set Sources.
12. In the Set Valve Data Source dialog box, in the Valve GIS Layer drop-down, select the Hydrant_Valves layer.
13. Set the Valve ID Field to VALID2.
14. Set the Pipe ID Field to PIPE.

These fields have been added to the GIS feature class for this example.

15. Click Associate Valve to Pipe to associate the pipes closest to the valves.

16. Click Close.
17. Set the Assessment Method to Based on Assessment Elements.

In this case, hydraulic assessment is based solely on an assessment element. A hydraulic simulation is run after closing all pipes connecting to the target assessment element.

18. Under Assessment Threshold Data, set the High/Max. Pressure value to 70 psi.

The CAM app will report all junctions receiving more than this threshold.

19. For this example, leave the other settings as is, and click Run.

The CAM app evaluates the network based on the active network and the defined options. Progress is displayed on the progress bar, and a summary is displayed in the Message Board.

20. If results do not display automatically, click Result to display the Extended Valve Assessment Reports.
21. In the Affected Area Reports section, click to open the Closed Area report.

This report displays the area required to isolate valves, and extends to immediate upstream and downstream valves.

22. Select the Demand Loss column header.
23. From the toolbar, click Sort Descending.

The top value shows the maximum demand loss, along with the valves associated with this loss. These high values are due to the setup of this example model, where the valves layer covers only a portion of the network, and large sections of the network without valves are included in the Closed Area.

24. Under Affected Area Reports, click to view the Disconnected Area report.

This report displays areas disconnected from supply sources, if any, as a result of the Closed Area.

25. For this example, investigate the report to see how many valves, when isolated, cause a disconnection in the network.
26. In the Performance Reports section, click to open the Run Summary.

The Run Summary report shows the status of each assessment run, and whether the run encounters any disconnections.

27. Investigate the report to see if any simulations failed for this example.

28. Look through the other Performance Reports to review Junction Performance and Pipe Performance.
29. Return to the Closed Area report.
30. Select the Assessment ID column header.
31. From the toolbar, click Sort Descending.
32. Select the ID WV108.

33. Under Detailed Element Reports, click Nodes to display the Nodes report.
34. In the CAM toolbar, click Apply Map Display.

In the network map, all of the valves that need to be closed to isolate WV108 are now displayed in red.

35. Move the CAM app to the side to view the map, if needed.
36. Under Detailed Element Reports, click Pipes.
37. Again, in the CAM toolbar, click Apply Map Display.

In the network map, all of the impacted pipes are now displayed in yellow.

38. From the CAM toolbar, click Reset Map Display.
39. Close the Critical Assessment Manager.