Evaluating signal changes

You can record all changes of the individual signal groups from all signal controllers. Signal controllers must be defined in the network (Modeling signal controllers).

Output data and formats

You can save the following data and data formats:

Output	ASCII file	MDB table	Window
Aggregated data	-	-
Raw data	*.lsa

• Save raw data to a file or database (Configuring evaluations for direct output)
• Show data in a window (Showing evaluations in windows)

Showing evaluation of signal changes in a window

1.  On the Evaluation menu, click > Windows > Signal Changes.

The Signal changes window opens in a tab.

2.  Start the simulation (Running a simulation).

In the Signal changes window, the current values of the following data is displayed:

Element	Description
SimSec	Simulation second [s]
CycleSec	Cycle time [s]
SC	Signal controller number
SG	Signal group number
Aspect	New signal state
Prev	Time since the last signal state change (= duration of the previous signal state)
Crit	Signal controller type
duetoSG	Signal group which has caused the current signal change. This is supported only by certain controllers for vehicle actuated signals.

A *.lsa file is saved.

Result of evaluation of signal changes

The record file of signal changes *.lsa contains the following information:

Element	Description
File title	Name of evaluation
File	Path and name of network file
Comment	Optional comment from the simulation parameters
Date	Time of evaluation
Vissim	Version number, service pack number, build number
Signal controller block	All signal groups
Data block	A row is output for each change process of each signal group. The columns contain the following data (from left to right): Simulation second [s] Cycle time [s] Signal controller number Signal group number New signal state Time since the last signal state change (= duration of the previous signal state) Signal controller type Signal group which has caused the current signal change. This is supported only by certain controllers for vehicle actuated signals.

Example of evaluation of signal changes file *.lsa

 
Signal Changes Protocol

File:    C:\Users\Public\Documents\PTV Vision\PTV Vissim 2024\Examples Demo\example.inpx
Comment:  Example, SC 3-10

Date:    03.01.2023 12:23:33

PTV Vissim:   2024.00* [253691]

 
SC 6  SGroup   1  Link  10283  Lane  1  At   18.0
SC 6  SGroup   2  Link    277  Lane  1  At  300.2
SC 6  SGroup   4  Link  10279  Lane  1  At    9.8
SC 6  SGroup   4  Link  10279  Lane  2  At    3.5
SC 6  SGroup   5  Link    272  Lane  1  At  245.6
SC 6  SGroup   6  Link    273  Lane  1  At  154.0
SC 6  SGroup  11  Link    249  Lane  2  At   66.8
SC 6  SGroup  11  Link    249  Lane  3  At   66.9
SC 6  SGroup  11  Link    249  Lane  1  At   66.8
SC 6  SGroup  21  Link    280  Lane  1  At    2.1
SC 6  SGroup  22  Link    281  Lane  1  At    2.8
SC 6  SGroup  23  Link    285  Lane  1  At    1.0
SC 6  SGroup  24  Link    284  Lane  1  At    3.6
SC 6  SGroup  25  Link    287  Lane  1  At    1.4
SC 6  SGroup  26  Link    286  Lane  1  At    2.0
SC 6  SGroup  27  Link    283  Lane  1  At    2.9
SC 6  SGroup  28  Link    282  Lane  1  At    2.9
SC 6  SGroup  31  Link     73  Lane  1  At    2.8
SC 6  SGroup  31  Link    406  Lane  1  At    2.1
SC 10 SGroup   1  Link  10305  Lane  1  At    8.7
SC 10 SGroup   2  Link      4  Lane  2  At   16.7
...
     1.0;      1.0;      6;      11;  green;          1.0;  VAP;       0;
     1.0;      1.0;      6;       1;  green;          1.0;  VAP;       0;
     1.0;      1.0;     10;      32;  green;          1.0;  VAP;       0;
     1.0;      1.0;     10;      31;  green;          1.0;  VAP;       0;
     1.0;      1.0;     10;      25;  green;          1.0;  VAP;       0;
     1.0;      1.0;     10;       3;  green;          1.0;  VAP;       0;
     1.0;      1.0;     10;       2;  green;          1.0;  VAP;       0;
     1.0;      1.0;     10;       1;  green;          1.0;  VAP;       0;
     1.0;      1.0;      9;      53;  red/amber;      1.0;  VAP;       0;
     1.0;      1.0;      9;      52;  red/amber;      1.0;  VAP;       0;
     1.0;      1.0;      9;      51;  red/amber;      1.0;  VAP;       0;
     1.0;      1.0;      9;      25;  green;          1.0;  VAP;       0;

     1.0;      1.0;      9;      22;  green;          1.0;  VAP;       0;
     1.0;      1.0;      9;      11;  green;          1.0;  VAP;       0;
     1.0;      1.0;      9;      10;  green;          1.0;  VAP;       0;
     1.0;      1.0;      9;       1;  green;          1.0;  VAP;       0;
     1.0;      1.0;      8;      52;  red/amber;       1.0;  VAP;       0;
...