My guess is that it will be a “nature highway” so migratory species can cross over the road

These are great for wildlife as they provide a safe crossing over high-speed highways. They are usually design to be in already existing migration paths where moving a proposed highway may not work and not disrupting migration paths is of importance.

Looks like a nice choke point for a predator to hang about.

It’s taken into consideration of the design of these crossings.

I’d like to read about that,understand how it’s done. it’s a thought I have whenever I see them but of course the professionals designing them would have thought about it.

IIRC they just hire someone to sit there and say “shoo” at any potential predators