Editing the driving behavior parameter Signal Control
For the driving behavior at signal controls, specify the following:
- how vehicles respond to amber signal
- how vehicles respond to red-amber signal
- a reduced safety distance before stop lines
- a time distribution for the response time
1. On the Base Data menu, click > Driving Behaviors.
The list of defined network objects for the network object type opens.
The list shows driving behavior parameter sets. Some driving behavior parameter sets can be predefined.
By default, you can edit the list (Using lists).
You can edit all driving behavior parameters for lane change, lateral behavior and following behavior in the list or in tabs with the following steps.
Note: In lists, you can use the Attribute selection icon to show and hide attribute values (Selecting attributes and subattributes for columns of a list). |
2. Right-click the entry of your choice.
3. On the shortcut menu, click Edit.
The Driving Behavior window opens.
4. Select the Signal Control tab.
5. Make the desired changes:
In the section Reaction after end of green:
Element | Description |
---|---|
Amber behavior |
Defines the behavior of vehicles when they approach an amber light.
|
Probability factors |
Only active if One decision is selected. The default values of the Probability factors Alpha, Beta 1, Beta 2 are based on empirical data:
|
In the section Reaction after end of red:
Element | Description |
---|---|
Red-amber behavior |
Modeling country-specific or regional behavior at red/amber signal.
|
Reaction time distribution |
Reaction time of a vehicle to the Go signal. It causes a time delay between the time step when the signal switches to Go and the time step when the first vehicle upstream of the corresponding stop line starts to move. The Go signal is defined by the Behavior at red/amber signal attribute:
If no time distribution is selected, the default time is 0 s. |
In the section Reduced safety distance close to a stop line:
Element | Description |
---|---|
The attributes define the behavior of the vehicles near the stop line. |
|
Factor |
If a vehicle is located in an area between Start upstream of stop line and End downstream of stop line, the factor is multiplied by the safety distance of the vehicle. Default value 0.6 The safety distance used is based on the car following model. The safety distance may be reduced via the Safety distance reduction factor attribute (Editing the driving behavior parameter Lane change behavior). For lane changes in front of a stop line, the two values calculated are compared. Vissim will use the shorter of the two distances. |
Start upstream of stop line |
Distance upstream from the signal head. Default 100 m |
End downstream of the stop line |
Distance downstream from the signal head. Default 100 m |
Superordinate topic: