Traffic Manager Properties

Traffic Manager properties are managed through the Properties panel. You can view and modify them..

If you do not properly configure the Traffic Manager behavior, error messages might appear in the Play Console.

This page discusses:

General

Active
Defines whether or not a behavior is active during a playing session.
Notes:
  • An inactive behavior or script is not executed during a playing session.
  • The behavior's activity depends on the actor's activity. If its associated actors are inactive, the behavior is also inactive.

Parameters

Multiple Cars
Defines the proportion of cars in a template during a playing session. The higher the value, the higher the appearance frequency.

Each car template must have the Car Controller behavior. Make sure that you exposed the car wheels, and that you entirely configured the Car Controller behavior.

Note: You must at least add and define one item in the Multiple Cars list.
Unique Cars
Defines the group of cars actors that will be instantiated only once in the traffic.

Each car must have the Car Controller behavior. Make sure that you exposed the car wheels, and that you entirely configured the Car Controller behavior.

Note: You can only define a product actor as a car.
Roads
Defines the group of roads that you need to simulate the traffic.
Note: For this property, you can use a single path actor, or a collection of path actors.
Maximum Speed
Defines the maximum speed of a car.
Traffic Load
Defines the density of cars on a path.
  • 0: there are no cars on the path.
  • 1: the traffic is very dense (100% of cars on the path). There is a space of one car length between each car.
Traffic Dispersion
Defines the space between cars on the path.
  • 0: cars are lined up on the path.
  • 1: the distribution of the cars on the path is random.
Rotate Wheel
Enables the wheels of a car to rotate or not in the turns.
Sampling Distance
Defines the sampling distance used to compute the path.

A short sampling distance involves a high-precision trajectory on an irregular ground.

Display Computed Path
Displays the path computed by the behavior.
Note: Use this property for debug purposes. For example, you can verify if the sampling distance has a good enough value.
Project on Ground
Lets you use the ground topology under the path.

Associated Capacities

Drivers
  • Start Traffic
  • Stop Traffic
Sensors
  • Is Traffic Stopped