498
Desire path for straight sidewalk
(infosec.pub)
Desire paths Desire paths can be paths created as a consequence of erosion caused by human or animal foot-fall or traffic. The paths usually represent the shortest or most easily navigated routes between origins and destinations. https://en.wikipedia.org/wiki/Desire_path
It just doesn't look like a particularly large road. We have shoulders on the motorway but that's usually 3 lanes either way.