Description
Item Description:"Special appreciation is expressed to Frank J. Bowery, Jr., and S. B. Hudson, of Woodward-Clyde Consultants of Rockville, Md., who were responsible for the collection of data and the preparation of the report"--Unnumbered preliminary page iv.
"Research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration."
Physical Description:40 pages : illustrations ; 28 cm.
Bibliography:Includes bibliographical references.
ISBN:0309025141
9780309025140