Hi. Basically this generator is an implementation of the idea explained here: link.
I have no code to share, sorry. But here is another generator based on the similar (but not exactly the same) idea with open code and some explanations of the method: City Map Generator.
About being lost: don't let yourself be intimidated by the academic lingo. For example, when I started reading that paper I didn't know what tensor fields are. So I've read a Wikipedia article on them and got back to the paper. And then I realized that I didn't need "tensor fields" to get the idea at all...