Table of Contents

Table of Contents

Traffic Control

Traffic Control

Overview and Key Concepts

The traffic control object is used to control traffic in a given area of a travel network. You build a traffic controlled area by connecting network nodes to the traffic control object. These NetworkNodes then become members of the traffic controlled area. Any path between two nodes that are both members of the same traffic control object is designated as a traffic controlled path, and travelers are only allowed onto that path if given permission by the traffic control object. The traffic control object can be in a mutual exclusion mode, where it only lets a certain number of travelers into the area at any given time, or it can use un-timed traffic modes to only allow travelers onto certain path sections at once.

Events

For information on events, see the Event Listening page.

The traffic control object has the following events:

On Entry

On Entry occurs when a traveller enters the area controlled by this traffic control.

It has the following parameters:

Event Parameter Type Explanation
Traveler treenode The traveller (or task sequence) entering the control area
Network Node treenode The traveller's node, an entry to the control area
Next Output Port int The output port the traveller will use next

On Entry Request

On Entry Request occurs when a traveller attempts to enter an area controlled by the traffic control.

It has the following parameters:

Event Parameter Type Explanation
Traveler treenode The traveller (or task sequence) requesting entry the control area
Network Node treenode The traveller's node, an entry to the control area
Next Output Port int The output port the traveller will use next

OnExit

On Exit occurs when a traveller leaves the control area.

It has the following parameters:

Event Parameter Type Explanation
Traveler treenode The traveller (or task sequence) exiting the control area

States

The traffic control object does not implement states.

Statistics

The traffic control object does not track any statistics.

Properties

The Traffic Control object uses the following properties panels: