Generating demand areas from area codes

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From the Demand Area Grid View, you can complete which of the following?

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Step-by-step Guide

In InfoWorks WS Pro, demand area analysis provides the demand profile input that is necessary for simulation runs.

Before carrying out a demand area analysis, however, several steps must be taken:

  • Allocating all known demand to the network
  • Assigning any direct demand for large, metered consumers
  • Creating a template demand diagram that includes demand categories for all unprofiled and leakage demand

To begin, allocate demand to the network using data configuration:

  1. In the Model Group, expand DAA Start.
  2. Open Live Data Configuration.
  3. In a file browser, navigate to the Demand Area Analysis folder and select 100221.txt.
  4. Drag 100221.txt into the Live Data Configuration grid, Live Data Point tab, and drop it in the first cell of the Live Data Point ID column.

The InfoWorks WS Pro interface, dragging a TXT file from a file browser into the Live Data Configuration grid, Live Data Point ID column.

To perform a demand area analysis, you must have the Demand Diagram, the network and control, and live data configuration open in the background.

  1. Open the Demand Diagram.
  2. Open the DAA Net Area Code and DAA Ctrl GeoPlan and bring it to the front.

To perform a demand area analysis:

  1. In the Window menu, select Grid windows > New demand area window.

The Window menu with Grid windows selected and New demand area window selected in the flyout; and in the workspace, the required Demand Diagram and GeoPlan open.

The Grid (Demand Area) window displays. The Demand Area Grid View is used to view, edit, and analyze Demand Areas.

  1. In the Demand Area ID column, right-click and select Generate demand areas from area codes.
  2. Leave the boundary conditions as-is.
  3. Click Generate.

The Generate Demand Areas from Area Codes dialog box with Generate selected, and in the background, the open Demand Area grid.

The Demand Area grid automatically populates. Notice in the Validation column there are some errors.

The Demand Area grid after populating, with Errors in the Validation column, highlighted in red.

To remedy the errors:

  1. Navigate to the Unprofiled Demand column. This is where you specify the demand profile for the demand area analysis process to update.
  2. In the first row, expand the Unprofiled Demand drop-down and select DMA35Dom for area 35.

In the Demand Area grid, the Unprofiled Demand drop-down expanded and DMA35Dom selected.

  1. Navigate to the Leakage Profile column, where each demand area is assigned a constant leakage.
  2. Expand the Leakage Profile drop-down and select DMA35UFW for area 35.

In the Demand Area grid, the Leakage Profile drop-expanded to select DMA35UFW.

The specified profiles are existing leakage profiles, generally determined from minimum nightly flows, within the demand diagram.

  1. Expand the Leakage Application drop-down and set the demand area to Unprofiled Demand.
  2. Navigate back to the Demand Area ID column and select the row by clicking the cell in the table margin.
  3. Right-click the cell and select Update demand area(s).

The Demand Area grid with the row for Demand Area ID 35 selected, and in the shortcut menu from right-clicking the table margin, Update demand area(s) selected.

  1. To view more detailed information on the demand area, right-click it and select Properties to open its properties dialog box.

The Demand Area-35 properties dialog box.