ABSTRACT
While networks surely exist within cities (Chapters 2-4), and cities themselves can be viewed as networks (Chapters 5 and 6), there are also networks that exist between cities. Moreover, as Figure 7.1 illustrates, these macro-urban networks exist at multiple geographic scales: regional, national, and global. 1 Chicago, for example, is part of a regional network of Midwestern industrial cities including Waukegan and Gary, but is also part of a national network of cities that includes New York and Los Angeles. Similarly, New York is part of this national network of cities, but is also linked to London and Shanghai in a global urban network. Just as one behaves differently when hanging out with friends or visiting family members, cities play different roles in each of these networks.
