The "Halo". Formula 1's solution to all things intrusive to the open cockpit car. After the 2018 F1 Season is over and the fans and FIA realize they should have never introduced it, there will be a surplus of them on E-Bay.
But seriously, I live in SE Michigan, where we have the honor of the most car/deer collisions in the US. There is no total solution.
No matter the material in the windshield, unless the frame can hold the G-load of instantly accelerating 225lbs of buck flesh, portions of the animal wind up in the passenger compartment. Lexan, as in my Factory 5 is more resistant to penetration than glass, but is again in a weak frame, and not DOT legal on the roads.
Deer whistles and other such stick on deterrents are useless and do not work.
I believe the best option is long range driving lights for night. At least if you are vigilant in looking for glowing yellow eyes on the roadside, long range lights may give you a split more second of reaction time to brake and reduce the impact. Not much you can do when they are moving in the day time.
Don't swerve to avoid. This will absolutely result in a crash even if you are fortunate enough to miss the deer. As mentioned above, the thing may actually leap over a low, little car. Aim at a point and hope they will be gone from that point when you arrive there.
Hunt more, reduce the heard. Since you are on this site...you like cool machines. The Cross Bow is a cool machine. Much like a se7en, it's light, fast, efficient.
Attachment:
Eye On U.jpg