Transportation Networks and Geographical Segregation

Five locations are linked by a transportation network; one hub and four feeders. Without trade (left part), each location has the same importance. With trade (right part), a process of geographical segregation becomes possible. The hub location may see the convergence of movements and thus increase its importance, while the feeder locations may experience a decline. Many urban systems have been affected by such a process, as the largest cities, due to their location, grew faster than small and medium-sized centers.