So many animals live on the railways behind my house, foxes, badgers, squirrels, stray cats. There's one fox that seems to have taken a liking to me after I started leaving food out, seen him a couple of times in the garden, he likes to wait on top of the neighbors shed when I'm away and haven't left food out. They're quiet enough, the trains and the engineering works are louder. It's probably quite nice for them, lots of houses, loads of foliage by the tracks, and nobody goes down there.
Also, don't panic, I've never seen anything other than birds and stupid hoomans get hit by trains near where I live, they probably know the timetable better than I do.