Wright, Paul H. Transportation engineering : planning and design / Paul H. Wright, Norman J. Ashford, Robert J. Stammer, Jr. - 4th ed. - New York : John Wiley, 1998. - viii, 680 p. : ill., maps ; 26 cm. Includes bibliographical references and index. ISBN: 0471173967 RM442.00 LCCN: 97-015256 Subjects--Topical Terms: Transportation engineering.Civil engineering.