Winter months push animal-vehicle collisions to peak levels across North America, with deer accounting for the majority of incidents. Cold weather drives animals toward roadways seeking salt deposits and exposed vegetation, while reduced visibility and icy conditions impair driver response times.

The Insurance Institute for Highway Safety reports that collisions with large animals cause approximately 1.3 million accidents annually in the United States, resulting in over 400 deaths and $10 billion in damages. Deer collisions spike November through December as mating season overlaps with winter food scarcity. Moose and elk present even greater hazards. A collision with a moose at highway speeds frequently proves fatal due to the animal's mass concentrating impact force through vehicle roofs and windshields.

Risk varies significantly by geography and time. Dusk and dawn hours between 5 p.m. and 8 a.m. show the highest collision rates, coinciding with peak animal movement and reduced light. Rural highways in forested regions of the Northeast, Upper Midwest, and Western states experience collision concentrations ten times higher than urban corridors.

Drivers reduce collision risk through specific practices. Slowing to posted speed limits gives animals time to flee and drivers time to brake. Using high-beam headlights in low-traffic areas improves animal detection. Scanning road shoulders continuously for eye shine reflects driver attention where collisions initiate. Swerving to avoid animals frequently causes more severe crashes than striking the animal itself, particularly on icy roads. Maintaining full control of the vehicle takes priority.

Winter tire installation improves traction on snow and ice, reducing skidding that follows emergency braking. Defensive driving during peak collision hours, particularly on routes through known wildlife corridors, diminishes encounter likelihood.

Some states employ wildlife crossing structures and reflective deterrents near high-collision zones, though effectiveness remains mixed. Driver