This is a particularly difficult print diagram to present in braille as a tactile. In order to be of any use it would have to be considerably simplified, and parts of it would need to be explained in a transcriber's note. I have consulted with a couple of committee members and come up with what we would attempt to do with your example map and questions. Unfortunately many of the details are not legible on the .pdf file. Please see attached description of a possible solution. Hope this helps!