Description
Item Description:At head of title: National Cooperative Highway Research Program.
"Research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration."
Physical Description:128, 112 pages : illustrations ; 28 cm.
Also available online from the Web site of the Transportation Research Board (http://trb.org).
Bibliography:Includes bibliographical references.
ISBN:9780309098939
0309098939
ISSN:0077-5614 ;