Saving volumes by demand segment or additively

If multiple PuT demand segments are assigned simultaneously, by default the results are saved separately for each demand segment. Alternatively, you may save the results additively. For this purpose, you define in advance to which demand segment the results are to be saved each. For example, you can save the results of the demand segments A, B, and C additively to demand segment A, whereas the result for demand segment D is saved to D further on.

Notes: In the case of large networks, you may save memory capacity by storing results additively.

The results cannot be differentiated subsequently by the individual demand segments.

This functionality is provided for PuT demand segments only.

Tip: You may also calculate the assignment in a way, that finally the results are stored by demand segment and as total value as well. For that purpose, create another (dummy) demand segment. Define, that the results of the assigned demand segments are to be stored additively with the new demand segment and start the assignment for all demand segments. The volume total is now stored with the new demand segment. Then reset the settings to the default: Each result is to be stored with the respective demand segment. Calculate another assignment, but do not include the new demand segment this time. Now, the volumes are stored by demand segment whereas the volume total has not changed.

1.  From the Calculate menu, choose General procedure settings.

The General procedure settings window opens.

2.  In the navigator, select PuT settings > Volumes.

3.  In the particular row, select the desired entry from the drop-down list provided in the Save with demand segment column.

Note: If assignment results already exist, you will delete the results of those demand segments whose results you would like to save to a different demand segment by this adjustment.

4.  Confirm with OK.

The changes are applied. When an assignment is calculated, the results are saved to the selected demand segment.

Note: If you want to save assignment results additively, you must also calculate the demand segments in the assignment to which the results shall be saved additively.

Tip: The Initialize button allows you to reset the settings back to default.