A wide range of books on urban systems models are available today for the student of urban planning, geography, and economics. There are few, if any, books, however, that deal with integrated urban systems modeling from the operational viewpoint. The term "integrated" is used here in the same sense as the "general equilibrium," in contrast to such approaches as "sequential" or "partial equilibrium." In fact, the main thesis of this book is that the characteristics of ur ban activity that best distinguish it from rural activity are (1) the intensive use of urban land and (2) urban congestion....