We make a really strict mental distinction between paved roads and walking paths these days. But if a paved road ends in a cul-de-sac or has a really sharp bend, there is almost always a walking path that continues in the same direction. And if you look closely at the path, it often has a pretty serious road bank. It shows that a lot of work has been put into the path, and it used to be wider than the 40 cm or so that walkers are using today. Following the path, you’ll often find the foundation of a small-holding and surviving garden plants.
These are signs that prior to cars and paved roads, the entire road plus walking path were originally just one unpaved road. The cul-de-sac or the sharp bend is just the point where modern planners decided to stop paving the road. 120 years ago our current distinction between the road and the path did not exist.