Editing an RTC Scenario

This stage introduces some of the features associated with RTC scenarios. The switch-on level for the pump is increased and the 'TimeOff' rule is removed.


This stage assumes that you have started InfoWorks ICM and that Master database, containing the ICM Basic Tutorial, is opened in the Explorer window, showing the 'Langley Catchment Study' model group.

To modify the RTC scenario:

  1. Open the 'Langley RTC (Tut)' network.
  2. Select the Scenarios | Manage scenarios option from the Network menu.

    The Manage Scenarios dialog is displayed.

  3. Click the Create... button and the Create New Scenario dialog is displayed.
  4. Name the new scenario 'Pump Control 3'.
  5. Check the Copy an existing scenario option and choose 'Pump Control 2' from the Scenario to copy drop-down list.

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    Create New Scenario based on Existing

  6. Click OK.

    The Create New Scenario dialog closes and the new scenario is added to the list of scenarios in the Manage Scenarios dialog.

  7. Highlight the 'Pump Control 3' scenario in the list and click the Select button.

    The scenario will open on the GeoPlan.

  8. Open the RTC Editor. ClosedSelect the Grid windows | RTC Editor option from the Window menu.

    The RTC Editor is displayed.

  9. Change the level at which the pump switches on:
    1. Click the (Expand) buttons to the left of the 'Global' and 'Fixpmp' tems to display their dependents and adjust the column widths if necessary.

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      RTC Editor Pump Regulator

    2. Click the 'HighLevel' Range so that the details are displayed on the pane on the right.
    3. Change the Minimum value to '1.7'.

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      SQL_Unexpanded Dialog

    4. Click the Update button.
  10. Add a comment to remind you of the change that has been made:
    1. Right-click the 'HighLevel' item and select Insert Definition | Comment from the pop-up menu.
    2. Type an appropriate comment in the right pane.

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      Changed Minimum Comment

    3. Click the Update button. The comment is included in the list on the left pane.
  11. Validate the scenario:
    1. Right-click any item in left pane the RTC Editor and select Full validation from the pop-up menu.

      The validation process checks for errors in logic and displays a full description of the rules in the scenario.

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      RTC Validation Report

    2. Close the 'RTC Validation Report' text window. ClosedClick the (Close) button in the upper-right corner of the window.
  12. Delete the 'TimeOff' range and rule:
    1. Right-click the 'TimeOff' range (below 'Global') and select Remove Dependent from the pop-up menu.
    2. Right-click the 'TimeOff' rule (at the bottom of the 'Fixpmp' list) and select Remove Dependent from the pop-up menu.

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      Deleting ranges and rules

  13. Save the changes:
    1. Click the RTC Editor window's (Close) button to close the dialog and a 'Save Changes' message is displayed.
    2. Click Yes to save the changes.
  14. Validate the network and its associated 'Pump 3' scenario.
  15. Commit the changes.
  16. Close the GeoPlan view.
  17. Run the simulation with the revised scenario:
    1. Open the 'Regulate Pump' run. ClosedRight-click the 'Regulate Pump'' run and select Open from the pop-up menu.

      The Schedule Hydraulic Run dialog is displayed.

    2. In the Run title field, change the title to 'Regulate Pump (Increased Level)'.
    3. Click the Update to Latest button. ClosedThe list of scenarios associated with the network in the Scenarios field is also updated when this button is selected.
    4. Check the Allow re-runs using updated network box.
    5. Check the box next to the Pump Control 3 option in the Scenarios field.
    6. The settings for all other options remain unchanged.

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      RTC Scenario Run Window for Pump Control 3

    7. Click Run simulations.

      A Schedule Job(s) dialog is displayed.

    8. Click the OK button.

      InfoWorks ICM processes the run and its progress can be viewed in the Job Control window. ClosedThis window can be displayed by selecting the Job control window option from the Window menu.

  18. View the simulation results:
    1. Open the simulation from the 'Regulate Pump (Increased Level)' run. ClosedExpand the 'Regulate Pump (Increased Level)' run in the Explorer window, and then double-click the 'Pump Control 3 Obs4p' simulation.

      The results are opened in the GeoPlan.

    2. Zoom in on the pump region. ClosedYou can, for example, use the Find in GeoPlan option in the GeoPlan menu or click the (Find in GeoPlan) tool, to zoom onto the manhole that contains the pump. In the dialog, enter the node id, in this case, 44636499, and click the Find button, and the GeoPlan will be centred on the specified manhole.
    3. Use the (Graph pick) button to display graphs of Level for '44636499' and Pump State for '44636499.1'. ClosedClick node '44636499, choose 'Level' from the list and click OK to display the graph. In a similar way, click the link, choose 'Pump State' and then click OK.
    4. Arrange the views horizontally. ClosedThe results show that the level now takes much longer to reach the switch-on value. As a result, the pump is not switched on until much later in the simulation.

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      RTC Simulation Results Pump Control 3

  19. Close the GeoPlan and graph views.Closed Click the (Close) button in the top right of the windows.

This tutorial has demonstrated how a simple RTC scenario can be set up and changed. With very little effort you can extend the scenario by adding more regulators etc. to simulate a variety of control options within the model.

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RTC Editor

Validating Networks

Committing Changes

RTC Validation Messages