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