I have been dwelling upon downtowns. This is not because mixtures of primary uses are unneeded elsewhere in cities. On the contrary they are needed, and the success of mixtures downtown (on in the most intensive portions of cities, whatever they are called) is related to the mixture possible in other part of cities.
Jane JacobsOne of our troubles is that we try to make municipalities that are totally different from each other all act as if they were the same kind of creature, with the same kinds of possibilities.
Jane Jacobs