A desire path can be a path created as a consequence of foot or bicycle traffic. The path usually represents the shortest or most easily navigated route between an origin and destination. The width of the path and its erosion are indicators of the amount of use the path receives. Desire paths emerge as shortcuts where constructed ways take a circuitous route, or have gaps, or are lacking entirely - from the Wikipedia page
I think these paths would make a lovely metaphor for the way AW lived his life. He always had clear destinations but went about it in his own way. Even though he set out alone, people eventually began to follow his desire paths and now AW's legacy is ingrained in paths across the country.
I found all these images in this forum : www.reddit.com/r/DesirePath/