Description
Item Description:At head of title: "National Cooperative Highway Research Program."
"Project 20-5 FY 1996(Topic 28-05)"--Title page verso.
"Transportation Research Board, National Research Council."
"Research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration."
Physical Description:60 pages : illustrations ; 28 cm.
Bibliography:Includes bibliographical references (pages 51-54).
ISBN:0309068193