The need for speed devours huge chunks of American cities and leaves the edges of the expressways worthless. Busy streets, for almost all of human history, created the greatest real estate value because they delivered customers and clients to the businesses operating there. This in turn cultivated the highest tax revenues in town, both from higher property taxes and from elevated sales taxes. But you can't set up shop on the side of an expressway. How can cities afford to spend so much to create thoroughfares with no adjoining property value?
Via Seth Dixon, Michael Miller