The traffic jam event is considered to end when the average traffic speed is higher than a certain value, and the overall road load is lower than a certain value for a certain period of time.
To set the jam end detection parameters, do the following:
- Open the Hardware tab in the System Settings window (1).
- In the object tree on the left side of the Hardware tab, select the Traffic Detector object representing the Traffic Detector module to be set up. The settings panel of the selected object will open on the right side of the window (2).
- In the Ending time, s field, enter for how long (in seconds) the reverse jam conditions must be satisfied for the end of the jam to be detected (3).
- In the Average speed threshold, km/h field, enter the maximum average traffic speed which is still considered to be a jam. When the average traffic speed remains higher than this value for a certain period of time, a traffic jam may be considered to have ended (if other conditions are satisfied) (4).
The threshold is set in km/h. In the Traffic jam threshold field, enter the minimum road load (in percent) which is still considered to be a jam. When the road load remains lower than this value for a certain period of time, the traffic jam may be considered to have ended (if other conditions are satisfied).
The road load parameter is calculated using the following formula:
 ,
where T0 is the total of the time periods when vehicles were present in the loop detector zone, and T is the time period set in the Statistics update time field. |
- Click Apply.
The jam end parameters are now set.