On “Filtered Permeability” as a sustainability tool

During one of our eternal research and reading probes which had us looking at and weighing the advantages, etc., of the many diverse approaches to creating “Livable Streets” (my favorite that being the term of the great and much missed Donald Appleyard), “Complete Streets”, “Quiet Streets”, “Fused Grids” . . . (just to cite a few of their many names”), we tumbled onto a phrase “Filtered Permeability” which was altogether new to us. After a bit we identified the person who had coined it, Steve Melia of the University of the West of England, and asked him to fill us in: Continue reading