Performing a valve criticality evaluation based on an external GIS layer

Any referenced datasets can be downloaded from "Module downloads" in the module overview.

Video quiz

Required for course completion

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.

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

Start by running a simulation for the current scenario:

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

To open the CAM:

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

On the InfoWater Pro ribbon, Project panel, Apps selected, and in the open App Manager, Criticality Assessment Manager selected highlighted in red.

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

The Criticality Assessment Manager, with the Based on GIS Layer Elements tab selected and highlighted in red.

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

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

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

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

The Set Valve Data Source dialog box, with all settings for this example configured and highlighted in red.

Click Close.
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.

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.

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

The Criticality Assessment Manager, Based on GIS Layer Elements tab, with the settings for this example configured and highlighted in red.

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.

If results do not display automatically, click Result to display the Extended Valve Assessment Reports.
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.

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

In the CAM, the Closed Area report, with the Demand Loss column selected, and in the toolbar, Sort Descending called out and selected to sort the column in descending order.

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.

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.

For this example, investigate the report to see how many valves, when isolated, cause a disconnection in the network.
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.

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

In the CAM, Run Summary selected, and in the Run Status column of the report, “Cannot Meet Demand” appears for several failed simulations.

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

In the CAM, the Closed Area report, with the Sort Descending tool highlighted in red, and in the Assessment ID column, ID WV109 selected and highlighted in red.

Under Detailed Element Reports, click Nodes to display the Nodes report.
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.

In the CAM, the Nodes report, with Apply Map Display highlighted in red in the toolbar; and in the background, the network map, with valves that need to be closed to isolate WV108 highlighted in red.

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

In the CAM, the Pipes report, with Apply Map Display highlighted in red in the toolbar; and in the background, the network map, with impacted pipes highlighted in yellow.

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

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

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Performing a valve criticality evaluation based on an external GIS layer

Video quiz

Which CAM report displays the area required to isolate valves?

Step-by-step guide

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