Page 5 of 85
viasis 3003 user manual
via
traffic
controlling
gmbh
5.2 Horizontal orientation
Direct the system horizontally through turning the system board around the mounting pole.
The ideal orientation to reach a maximum distance range depends on the local circumstances.
Illustration 2: viasis display directed to the road with a measurement angle = 5°
For the first the system should be straightened
parallel
the roadway and can be
turned until a
measurement angle
of 5
to the lane (see illustration 2) until the vehicles are detected from
the unit at the maximum distance range.
If leaving traffic reduces the distance range remarkably, the system board can also be turned
away from the roadway up to a measurement angle of 5 (see illustration 3).
Illustration 3: viasis display directed away from the road with a measurement angle = 5°
A measurement angle of more than 5 lead to the display of too small speed values and may
cause measurement errors outside the specified accuracy.
5.2.1 Leaving traffic
The system is adjusted to approaching objects (toward the front side of the board). Leaving
objects are also detected but filtered out.
Practically also leaving traffic can cause a distance range reduction. Because the object with
the highest reflection amplitude, under certain circumstances the leaving traffic can be domi-
nant for a short time and therefore „blinding“ the detector, although this detection is filtered
out and is not displayed.
If necessary the display board can be turned away from the leaving traffic lane within certain
limits to get an undisturbed detection, see also chapter 5.2.
