Signs don't say Moose Crossing...they say Hundreds of Collisions!!! In my limited travel up to and from No. Conway in the evening hours, I have seen 2-3 moose vs. auto accidents. Scary. Of course, that road has woods coming up close to the road shoulders in many areas. A moose steps out of the woods onto the road and there is just not much time to see them and react.
When I was stationed up in Alaska, near Fairbanks, the safety briefing when I first got there included a suggestion that at night, use your high beams as much as possible, because moose are so tall, low beams don't pick up the moose body until it is too late. Not a bad idea around here, not just for moose, but also for deer.