Book excerpt: The streets of Roman cities have received surprisingly little attention until recently. Traditionally the main interest archaeologists and classicists had in streets was in tracing the origins and development of the orthogonal layout used in Roman colonial cities. Roman Urban Street Networks is the first volume to sift through the ancient literature to determine how authors used the Latin vocabulary for streets, and determine what that tells us about how the Romans perceived their streets. Author Alan Kaiser offers a methodology for describing the role of a street within the broader urban transportation network in such a way that one can compare both individual streets and street networks from one site to another. This work is more than simply an exploration of Roman urban streets, however. It addresses one of the central problems in current scholarship on Roman urbanism: Kaiser suggests that streets provided the organizing principle for ancient Roman cities, offering an exciting new way of describing and comparing Roman street networks. This book will certainly lead to an expanded discussion of approaches to and understandings of Roman streetscapes and urbanism.