Importing an external matrix into a network model

You can import a matrix, which is available as a file, into the Visum network model. In this case, only those matrix values are imported whose OD pairs exist in the network.

1.  From the Edit menu, choose Matrices > Add external matrix to the network model.

The Add external matrix to network model window opens.

2.  Make the desired changes.

Element

Description

Number

User-defined matrix number

Code

Short name of the matrix

Name

Long name of the matrix

Demand matrix for zones

Select this option to import a demand matrix for zones.

Skim matrix for zones

Select this option to import a skim matrix for zones.

Demand matrix for main zones

Select this option to import a demand matrix for main zones.

Skim matrix for main zones

Select this option to import a skim matrix for main zones.

File

Click the symbol to select the matrix file.

Note

Alternatively, into the field, enter the file name and the path.

3.  Confirm with OK.

If the matrix file contains OD pairs that do not exist in the network, a corresponding message is displayed.

4.  Confirm with OK if necessary.

The matrix data is read into a new Visum matrix. OD pairs that do not exist in the imported matrix file are assigned the value 0. The matrix is opened.