Statistically speaking the stretch of road, where this sign sets passes through a ‘wildlife observation’ area, is quite dangerous. So, that said, I can see why the slaughter of deer, elk and people. Three crosses set along side the road way a short distance from this sign…probably in memoriam of the 3 mentioned on the lower right corner of the sign.  

Long, straight roads with slight up and downs beg pushing ahead. But there is little reaction time once one sees the animal, especially at night.