Using the NGram Viewer, it is possible to compare the popularity of words and phrases over a long period of time and from one generation to the next.
"What does this have to do with trails," you may ask?
So I used NGram to compare trail related terms and how frequently they've been used over the years.
First, I compared the phrases hiking trail, biking trail, rail trail, equestrian trail, bike trail, multi-use trail, and family trail. Sorry the graphs (below) spill over into the right margin, but when I tried to publish the smaller versions, they were awfully difficult to read.