, 2011


With approx. 30 accidents caused by deer, the federal road B202 near Kiel in Schleswig-Holstein is a well-known accident blackspot.

Goals are to reduce the number of accidents caused by wild animals and, at the same time, to preserve a north-south passing-strip where the wild animals can cross.


To do so, two safety fences of four kilometers length were installed to secure the area at the side of the road and to force the animals to only cross the road at two defined spots.

At these spots, detection areas at the side of the road were established to detect the animals when they approach. They consist of six sensors each at both sides of the road. Once animals are detected, warning signs placed in sufficient distance beside the road start blinking and show the warning “deer pass” and a speed reduction of 70 km/h (50 km/h). The road user has enough time to slow down and to avoid the collision, if necessary.

Project content

  • PRIMOS® MOTION Central Software
  • 2 Outstations
  • 16 Variable message signs
  • 2 Traffic data acquisition systems
  • 4 Detection fields

The detectors are deliberately adjusted in such way that only larger animals are detected and small ones are ignored. This is done in order to avoid that the attention of the road users wears off because the situation is considered to be nonhazardous.

The display of the VMS in LED-technology can optionally be adjusted to be static or blinking.


Central Software PRIMOS® MOTION

The complete system is parameterized and visualized via the PRIMOS® MOTION central software by means of a local operating station in the operating center at Neumünster. Here, the software not only processes the animal detection as such but also the measurement data from the inductive loops detecting traffic data such as number of vehicles and vehicle classes.

The traffic data, e.g. traffic volumes, is evaluated and used for statistical means. Also, the brightness and function of the signs can be adjusted. Additionally, the software includes a complete user adminis­tration as well as the logging of wild animal detections and their resulting switchings.