{TAIL ~ A precautionary action system} installed in a vehicle uses this database, or a database derived therefrom, in combination with a positioning system to take a precautionary action as the vehicle approaches {HEAD ~ such a location} 
{ TAIL ~ A precautionary action system } installed in a vehicle uses this database , or a database derived therefrom , in combination with a positioning system to take a precautionary action as the vehicle approaches { HEAD ~ such a location }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH 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