This book provides information concerning the costs of transportation on non-urban highways and the relationships between these costs and characteristics of highways such as surface roughness, and vertical and horizontal geometry. The sources of the information presented here are four major road user cost studies performed between 1970 and 1982 in Kenya, the Caribbean, Brazil, and India. In these studies road user costs were investigated in considerable depth. Surveys of commercial road users were performed, surveys on a far larger scale than had been conducted prior to the 1970s. Large scale experiments were undertaken, aimed at determining the fuel consumption of cars, buses and light and heavy goods vehicles under alternative highway conditions, and considerable effort was devoted to obtaining data on vehicle speeds and their responses to highway conditions. The resulting body of knowledge concerning road users' costs is enormous, spanning three continents, diverse highway conditions and radically different economic environments.

As an important industry, transportation costs account for a considerable percentage of the gross national product of countries. It is therefore key to have at the disposal of those concerned with transportation activities, a bibliographical literature on costs and costing. The bibliography lists books, papers, technical reports, journal articles, and information rarely found in books and dissertations.

First published in 1973. This is the fifth issue in the series and covers the years 1967 and 1968. Books and pamphlets have been considered as published in the United Kingdom when their publishers are listed in Whitaker's Publishers in the United Kingdom and their addresses. February 1971. This includes many foreign publishers. mainly American. who have branches in the United Kingdom and whose publications are listed in the British National Bibliography. Books published abroad and distributed by British publishers are not included.