The following options are available for measuring the green of a traffic stream with the detectors:

  • Extend with the gap: The gap indicates how long a detector in green can extend after it is no longer occupied. 
  • Extend with the smoothed occupancy level: vs | plus has the option of measuring with the occupancy level of a detector. This is done with a hysteresis at which the occupancy level must rise above the threshold value Occupancy level start. The detector then extends until the occupancy level falls below the second threshold value, occupancy level end, again. 
  • Combination of both: The rating type (AND or OR) determines how the above-mentioned parameters are to be combined. 
    • If the current gap is less than or equal to the comparison value AND the occupancy rate is greater than the comparison value, this is considered an extension. 
    • If the current gap is less than or equal to the comparison value OR the occupancy rate is greater than the comparison value, this is considered an extension.


Furthermore, the time that a detector is authorised for the extension can be limited: 

  • The active time specifies how long a detector is analysed in green in order to extend. If the green time is greater than the "Active time" value, the detector in question is no longer taken into account for the measurement.


Display

Identifier

Values

Description

RatType

Detector rating type


The rating type defines how the parameters time gap, occupancy and occupancy rate are to be linked.






AND

If the current time gap is less equal to the comparison value and the occupancy rate is greater than the comparison value, this is considered an extension.


OR

If the current time gap is less equal to the comparison value or the occupancy rate is greater than the comparison value, this is considered an extension.

GAP

Gap time


The time gap (GAP) indicates how long a detector in the green can extend after it is no longer occupied.






Occupancy

The occupancy alone is decisive.


0 .. 3276

The time gap is measured. The value must be specified in 1/10 seconds.


INAC

The time gap is inactive.

OCC_START

Occupancy rate start


vs | plus gives the possibility to measure the so-called occupancy rate of a detector. This is done with a hysteresis at which the occupancy level must rise above the threshold value Occupancy Level Start (OCC_START). The detector then extends until the occupancy level falls back below the second threshold, Occupancy Level End (OCC_END).






0

The occupancy level is inactive.


1 .. 100

The occupancy rate is measured. The value in %.

OCC_END

Occupancy rate end


vs | plus gives the possibility to measure the so-called occupancy rate of a detector. This is done with a hysteresis at which the occupancy level must rise above the threshold value Occupancy Level Start (OCC_START). The detector then extends until the occupancy level falls back below the second threshold, Occupancy Level End (OCC_END).






0

The occupancy level is inactive.


1 .. 100

The occupancy rate is measured. The value in %.

TACTIVE

Active time


The active time indicates how long a detector is evaluated in the green to extend.






INAC

No extension in the green.


Duration

Active time during the entire green time.


0 .. 3276

Active time in seconds.