If your vehicles spend time on private roads (such as those in a forest, farm or at a port) speeding behavior on these roads is not automatically recorded as an over speed event because the speed limit is not publicly known.
To get around this, a speed limit can be applied to a geofence enabling you to report on speeding events in these private areas.
This report is extremely useful for over speed reporting on private roads that don't have a speed limit applied within the Argus system like public roads do.
To run the Geofence Overspeed report, first simply create a geofence covering the whole private area that the speed limit is applied to, and apply the maximum speed limit that will be allowed in this geofence.
To learn how to create a geofence and apply a speed limit, check out this article.