Placing a network under scenario management

Warnings:   Do not change the names or structure of the files and directories generated by Vissim. Do not save the files of a project to the directory of another project. In both cases, scenario management cannot work properly, which may lead to loss of data!

Place your network as a base network under scenario management to derive other networks from it, save these as scenarios and make further changes to them. The base network may already contain a modeled network or be empty.

1.  Ensure that the network of your choice has been modeled according to your requirements and has been saved as a *.inpx network file.

2.  Ensure that the network file is not saved to a directory that already contains a project or part of a project.

3.  On the File menu, click > Scenario Management > Place Under Scenario Management.

The Place Under Scenario Management window opens.

4.  Enter the desired data.

Element	Description
Project name	Name of the project to which the base network and first scenario are saved.
First scenario	Name of the first scenario saved as a copy of the base network to the project.

5.  Confirm with OK.

In the network editor, the first scenario is displayed. The title bars and frames of non-selected elements of the program interface, e.g. of the network editor, project explorer or quick view are no longer displayed in blue (default color), but in a different color, now green by default, as a scenario has been opened.

The title bar of Vissim displays the name of the project and the first scenario. The project explorer opens (Using the project explorer). In the directory that contains the *.inpx network file, Vissim creates the following directories and files for scenario management.

Warning: Avoid deleting, moving, editing or other changes to these directories and files. Otherwise, scenario management cannot work properly, which may lead to loss of data!

• Backups: used internally by Vissim
• Modifications: contains *.trax model transfer files of the modifications
• Scenarios: When a scenario is simulated and direct output is selected for evaluations, Vissim saves the direct output files to subdirectories of this directory.
• Temp: contains backup files

If you have generated files using Direct Output of Evaluations, these files remain saved in your directory and are not automatically moved before you place the network file under Scenario Management.

If when editing the network file, you have saved or generated the following files within Vissim before placing the network file under Scenario Management, these files are not automatically moved by Vissim when you place the network file under Scenario Management:

• Controller files
• Fixed time controller files *.sig (until Vissim 2021)
• Animation files *.ani
• Video files

When you place a network file that contains evaluation results, path files *.way, trip chain files *.fct or cost files *.bew under scenario management, these are assigned to an automatically created Scenario 1 and are saved to its directory under the Scenarios directory.

If when editing the network file, you have created a results database, this database is automatically moved by Vissim to the Scenarios directory before you place the network file under Scenario management.