Generating demand areas from polygons

00:03

In info works.

00:04

WS pro demand area analysis provides the

00:07

necessary demand profile input for simulation runs.

00:11

This is vital in reviewing the current demand for water and

00:14

projecting future potential demand areas where more resources are needed.

00:19

When working with a network that does not have demand area codes already assigned.

00:23

It can be helpful to create demand areas from polygons within the network.

00:28

After allocating all known demand to the network,

00:30

assigning any direct demand for large metered customers,

00:34

creating a template demand diagram and opening the respective windows.

00:38

You can create a demand area from a polygon

00:41

to begin open the live data configuration.

00:45

Dragon drop the 100221 dot txt file into the first

00:50

column of the first row in the data point tab

00:54

then open the DAA net polygon and DAA control and demand diagram from the toolbar

01:04

select window

01:05

grid windows, new demand area window,

01:11

the grid demand area window displays

01:14

the demand area. Grid view is used for viewing, editing and analyzing demand areas.

01:20

Currently the grid is empty

01:22

in the demand area, ID column,

01:24

right click and from the shortcut menu select generate demand areas from polygons.

01:30

This opens the generate demand areas from polygons dialogue.

01:34

From here. You can configure boundary conditions

01:37

for now. Leave it as is and then click generate

01:41

when generating demand areas from polygons info works.

01:44

WS pro will select a random node in the network to operate as a seed node.

01:49

Then the program traces from the seed node until other nodes within

01:53

the polygon are found or any of the boundary conditions are met,

01:57

the selected nodes will then be excluded from any subsequent searches.

02:02

The program then searches for other nodes within the current polygon with

02:05

the same demand area code as the initially selected seed node.

02:09

This operation is repeated and the resultant selection of nodes and links

02:13

defines the demand area until all nodes are excluded from the search.

02:17

And the creation of demand areas is complete.

02:20

A new demand area displays in the grid view.

02:23

Understand that when creating demand areas from polygons,

02:26

you will need to enter more information than

02:28

if you create demand areas from area codes.

Video transcript

00:03

In info works.

00:04

WS pro demand area analysis provides the

00:07

necessary demand profile input for simulation runs.

00:11

This is vital in reviewing the current demand for water and

00:14

projecting future potential demand areas where more resources are needed.

00:19

When working with a network that does not have demand area codes already assigned.

00:23

It can be helpful to create demand areas from polygons within the network.

00:28

After allocating all known demand to the network,

00:30

assigning any direct demand for large metered customers,

00:34

creating a template demand diagram and opening the respective windows.

00:38

You can create a demand area from a polygon

00:41

to begin open the live data configuration.

00:45

Dragon drop the 100221 dot txt file into the first

00:50

column of the first row in the data point tab

00:54

then open the DAA net polygon and DAA control and demand diagram from the toolbar

01:04

select window

01:05

grid windows, new demand area window,

01:11

the grid demand area window displays

01:14

the demand area. Grid view is used for viewing, editing and analyzing demand areas.

01:20

Currently the grid is empty

01:22

in the demand area, ID column,

01:24

right click and from the shortcut menu select generate demand areas from polygons.

01:30

This opens the generate demand areas from polygons dialogue.

01:34

From here. You can configure boundary conditions

01:37

for now. Leave it as is and then click generate

01:41

when generating demand areas from polygons info works.

01:44

WS pro will select a random node in the network to operate as a seed node.

01:49

Then the program traces from the seed node until other nodes within

01:53

the polygon are found or any of the boundary conditions are met,

01:57

the selected nodes will then be excluded from any subsequent searches.

02:02

The program then searches for other nodes within the current polygon with

02:05

the same demand area code as the initially selected seed node.

02:09

This operation is repeated and the resultant selection of nodes and links

02:13

defines the demand area until all nodes are excluded from the search.

02:17

And the creation of demand areas is complete.

02:20

A new demand area displays in the grid view.

02:23

Understand that when creating demand areas from polygons,

02:26

you will need to enter more information than

02:28

if you create demand areas from area codes.

Video quiz

You can create demand areas without having assigned demand area codes by doing which of the following?

(Select one)
Select an answer

1/1 questions left unanswered

Step-by-step Guide

In InfoWorks WS Pro, demand area analysis provides the necessary demand profile input for simulation runs. When working with a network that does not have demand area codes already assigned, it can be helpful to create demand areas from polygons within the network.

Before carrying out a demand area analysis:

  • Allocate all known demand to the network
  • Assign any direct demand for large, metered consumers
  • Create a template demand diagram that includes demand categories for all unprofiled and leakage demand

To generate Demand Areas from polygons:

  1. From the Model Group, under DAA Start, open the Live Data Configuration.
  2. From a file browser, Demand Area Analysis folder, drag 100221.txt into the Live Data Configuration grid, and drop it in 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.

  1. Open the Demand Diagram and DAA Net Polygon and DAA Ctrl GeoPlan.
  2. From the toolbar, select Window > 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.

  1. In the Grid (Demand Area) window, Demand Area ID column, right-click and select Generate demand areas from polygons.
  2. Leave the boundary conditions as-is.
  3. Click Generate.

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

InfoWorks WS Pro will select a random node in the network to operate as a seed node. Then, the program traces from the seed node until other nodes within the polygon are found or until any of the boundary conditions are met. The selected nodes will then be excluded from any subsequent searches.

The program then searches for other nodes within the current polygon with the same Demand Area Code as the initially selected seed node. This operation is repeated, and the resultant selection of nodes and links defines the Demand Area until all nodes are excluded from the search and the creation of Demand Areas is complete.

A new demand area displays in the grid view:

The new demand area created using polygons appears in the first row of the Grid with a Demand Area ID of 35.

Note: When creating demand areas from polygons, you will need to enter more information than if you create demand areas from area codes.

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