A deviation from the intermediate point to {TAIL ~ a new intermediate point} is determined such that the new intermediate point has a cumulative threat risk value lower than or equal to the allowable threat risk per {HEAD ~ grid cell} 
A deviation from the intermediate point to { TAIL ~ a new intermediate point } is determined such that the new intermediate point has a cumulative threat risk value lower than or equal to the allowable threat risk per { HEAD ~ grid cell }
OTH OTH OTH OTH OTH OTH OTH 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 HEAD HEAD HEAD HEAD HEAD HEAD