Data mining in {TAIL ~ a digital map database} to identify intersections located at {HEAD ~ hill bottoms} and enabling precautionary actions in a vehicle 
Data mining in { TAIL ~ a digital map database } to identify intersections located at { HEAD ~ hill bottoms } and enabling precautionary actions in a vehicle
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH