Defining signal programs

You may also automatically create signal programs with a fixed cycle time after editing the stage sequence (Editing stage sequence).

The VAP Manual contains a description of the VAP scripting language.

In particular, when creating a *.pua data file in Vissig, you want to avoid using special characters in names and identifiers, for example in the name of a signal group (Add-on module Traffic-dependent VAP Programming). For further information, refer to the VAP Manual, Identifier names section. By default, the VAP Manual is stored in the directory ..\Doc\<language ID> of your Vissim installation.

Signal programs have the following data:

Element	Description
Number	Unique number
Name	Description of signal program
Intergreens	Intergreen matrix assigned under Stage assignments
Cycle time	Cycle time defined under Stage sequence
Offset	Offset for the synchronization, for example, within a green wave
Switching time	Switching time at which the system can switch to another signal program, for example, to a daily signal program list

If an intergreen matrix is assigned to a signal program, the adherence to the intergreens can be checked while editing the signal program. The intergreen time violations are displayed automatically.

1.  Open the signal controller editor (Opening and using the signal controller editor).

2.  Double-click the desired signal controller in the Navigator.

3.  Double-click Signal programs in the Navigator.

The signal programs list opens.

The Signal programs entry in the Navigator can contain the following types of signal programs:

• Signal group-based signal programs. These can be created in the overview table.
• Stage-based signal programs created from stage sequences

The type of signal program is displayed in italics in the left window section below the name of the signal program.

4.  Right-click the desired entry in the list of signal programs.

The shortcut menu opens.

5.  Click the desired entry.

Element	Description
Add	Add a new row to a new signal program
Duplicate	Copy signal program and insert with a new number
Edit	Change data of the selected signal program
Delete	Delete selected signal program
Export	Export graphical display of the signal program

To sort a column of the list, click the column header.

6.  Make the desired changes:

Element	Description
No.	Number of the signal program
Name	Name of the signal program
Intergreens	Used intergreen matrix
Cycle time	Cycle duration in seconds
Offset	Stage scheduling is postponed by this time. For the synchronization, for example, within a green wave.
Switching time	The system can change between two signal programs at this point. Both signal programs must display the same signal states for all signal groups at this point. In the signal program display, a vertical blue line indicates the switching time.

Changes are saved when you close the SC editor.

7.  Edit the signal program (Editing signal programs).