How to Control Junctions in Sessions

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The screenshots shown below give examples of how junction settings can be used to control the operation of a session.

Application 1: Presetting Junctions

1. The Scenario:

When a consist reaches a trigger, the junctions ahead are set and locked into position.

2. Rules Used:

3. Session Rules Screenshot:

SetJunctions.JPG

4. Example Explanation:

  • Line 1: Trigger Check The event is triggered when the consist reaches a trigger. This executes the following rule.
    • Line 2: Set Junctions Sets selected junctions to set directions and specifies the level of control by the users and AI.
SetJunctionsList.JPG

Application 2: Asking the User to Set Junctions

1. The Scenario:

A consist has been halted at a trigger placed in front of a junction. The user will be asked to set that junction and the following junction before the consist can proceed.

2. Preconditions:

3. Rules Used:

4. Session Rules Screenshot:

TestJunctions.JPG

5. Example Explanation:

  • Line 1: Wait on Navigation Point The event is triggered when the consist halts at the navigation point assigned to the trigger. This executes the following rules simultaneously
    • Line 2: Message Popup Displays a message window asking that the next two junctions be manually set.
    • Line 3: Multiple Junction Alignment Check tests the switch directions of the next two junctions and waits until they are aligned as specified.
JunctionSettings.JPG
Checking junction switch settings

The following line is executed only if the junctions are set correctly

      • Line 4: Message Popup Displays a message window stating that the junctions are now correctly set.

Related Session Creation Tutorials:

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