I think its a good idea to map out where deer related accidents are most abundant, but in the same breath its kind of like trying to predict where lightning will strike -- sure, we all know "about" where the lightening's activity would be......in/around the storm front of course......but the storm pattern moves, same as the deer - they can/do have relatively huge territories and are constantly moving; so even if you have some areas mapped that could be populated with potential hazard, its a guessing game as to where they would be at various times of day.......I understand what you're trying to do with this, but without their migratory habits tracked your almost crapshooting to whether theres danger present or not - I've heard about deer being hit in town before, even if its rare....it does happen. So I typically just watch for signs to tip me off where their traffic crosses ours. Just my 2c