A city is a marriage of people and place. City planners and managers are keenly interested not only in who is in the city and what they are doing, but also in where they are doing it. So are business people. When a retailer rents "a good location," s/he is renting not just a space, but the pattern of people's behavior on and near that space. When a realtor sells a house because it's in "a good neighborhood," s/he is selling not only the view and the physical environment, but the other people who share that space.
It should come as no surprise, then, that much ingenuity has been expended on tools for analyzing and predicting how people use space. The model in this chapter is based on one of those tools, a tool which is remarkable for the breadth of its applications.
© 1996 A.J.Filipovitch
Revised 11 March 2005