Comparing NY City and the rural fringes of Halton does not really really work. Have a look at comparable parts of New Jersey and see how much grid there is. And is it really that important. I can think of scores of larger cities where grid networks do not exist. It seems to be a NAM thing, where early city planners had a clean sheet to work with.Um what? Other cities have much more functional and complete street grids. New York City for example.