The values of a matrix you can distribute to existing PrT paths. The matrix value for the OD pair from zone A to zone B will be used as volume of the path from zone A to zone B. If there are several paths from zone A to zone B, the particular matrix value is distributed to the paths of all (or all active) path sets according to the path attribute ShareOfPathTarget.
1. From the Calculate menu, choose Procedure sequence.
The Procedure sequence window opens.
2. Add the Distribution of demand matrix to paths procedure from the Matrices category to the given order of procedures in the procedure sequence (Setting up and starting the procedure sequence).
3. Click in the Reference object(s) column.
The Select matrix window opens.
4. Select the desired matrix. Here, two methods are provided (Selecting matrices).
| Element | Description |
|---|---|
|
Select matrix directly |
From the list of all matrices, select the desired matrix by its number. |
|
Select matrix by properties |
Select a matrix by certain attributes and their values. |
5. Confirm with OK.
6. Click the Edit button.
The Distribute matrix to paths window opens.
7. Select the desired options.
|
Element |
Description |
|
Only active path sets |
If this option has been checked, each matrix value is distributed to paths of active path sets only. Volumes of other paths are retained. |
|
Consider OD pair filter |
If this option has been checked, only active OD pairs are regarded (Exception: Filter for OD pairs). |
|
Note: If you exclude path sets from distribution via options, path attribute ShareOfPathTarget of the path sets excluded is not accounted for during the distribution of matrix values. Example: There are the paths d, e, and f from zone A to zone B. Path d has a ShareOfPathTarget of 3, paths e and f of 1. The matrix value to be distributed is 100. Via path filters, path f is set to inactive. Via the option Only active path sets, it is excluded from distribution. The matrix value is then distributed across paths d and e. Path d is assigned 100 : 4 x 3 = 75. Path e is assigned 100 : 4 x 1 = 25. |
8. Confirm with OK.
9. Execute the procedure (Executing procedures in the procedure sequence).
During the procedure sequence, the matrix values are distributed to the paths according to the specified order of procedures.
