An object of the present invention is to provide an apparatus, use of an apparatus and method for defining {HEAD ~ a safety zone} for {TAIL ~ a vehicle} 
for
An object of the present invention is to provide an apparatus , use of an apparatus and method for defining { HEAD ~ a safety zone } for { TAIL ~ a vehicle }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL