Managing results

Before configuring the desired result data and starting the simulation, you can set the following basic settings for managing the result data:

  • Keep or delete data from previous simulation runs
  • Configure columns to undertake new simulation runs
  • For results which are automatically saved, select as destination Database or File
  • Define percentiles

Notes: Evaluation data of previous simulation runs are deleted:

  • When you select the option Delete previous simulation runs
  • When you change the configuration of the evaluation
  • When you edit or delete network objects the evaluation is based on

Before Vissim deletes the data, a message is displayed.

1.  From the Evaluation menu, choose > Configuration > Result Management tab.

2.  Make the desired changes:

Element Description
Keep previous simulation runs
  • None: Select this option to delete the following data:
  • The cost file *.bew is overwritten.
  • The path file *.weg is overwritten.
  • The entries of the simulation runs in the Simulation Runs results list are deleted.
  • The files in the directory ..\<Name of network file>.results are deleted.
  • If under Simulation Parameters you selected Number of runs > 1, the simulation run objects are deleted between the simulation runs. However, the direct output files and automatic list export files of the individual simulation runs remain intact.
  • Only of current (multiple) simulation: Select this option to save all simulation run data of the current multiple simulation. Data of previous simulation runs is deleted.
  • Of all simulation runs: Select this option to save all simulation run data of the current multiple simulation. Data of previous simulation runs is also kept.
Add new columns in lists

only if the result attributes of previous simulation runs are kept. The option Only of current (multiple) simulation or Of all simulation runs must be selected: If this option is selected, in the results list of the evaluation, the column settings are adopted for each new simulation run. The results of the new simulation run are displayed in the new lines.
Destination for automatic list export
  • File: If in a list you selected the Autosave after simulation button , the results are saved to an Vissim attribute file *.att at the end of the simulation run (List toolbar).
  • Database: If in a list you selected the Autosave after simulation button , the results are saved to a database at the end of the simulation run (List toolbar).
Available percentiles

Define percentiles which specify a share of each of the values of the total results as an aggregated value over all the simulation runs and time intervals, such as 95% of the queue length in queue counters and turn relations in nodes. One value will be considered for each interval. The value range for a percentile is from 0 to 100%.

3.  When you wish to define percentiles, repeat the following steps for each percentile:

4.  Right-click in the Available aggregation percentiles table.

5.  On the shortcut menu, click Add.

6.  In the Value column, enter the desired value for the percentile as a percentage.

Once the result attributes and/or the direct output has been defined and the simulation runs performed, the results of the percentiles will be calculated for the attributes and displayed chronologically in the result list for each percentile.

7.  Confirm with OK.

8.  Define the desired result attributes and/or the direct output (Configuring evaluations of the result attributes for lists), (Configuring evaluations for direct output).

Superordinate topic:

Results