The past twenty years have seen an enormous increase both in the size of urban areas and in automobile ownership. As a result, numerous new and complicated transportation problems have arisen. In response to the urgent need for solutions to these problems, this pilot study of traffic estimation and assignment was made to evaluate objectively the diversified methods for predicting urban transportation demand. The study focuses on the total transportation planning process, involving the integration of many interacting characteristics of the urban environment, with special emphasis on those parts of the process where current methods are inadequate.
Originally issued as a report in 1961, this volume remains the only source in which all the existing principles and techniques of transportation planning, formerly scattered in the literature, are brought together in one volume, critically assessed, and made readily available.
