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|All Authors / Contributors:||
John Laughland; American Association of State Highway and Transportation Officials.; United States. Federal Highway Administration.
|Notes:||"Research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration."
"Project 17-2A FY '72."
|Description:||150 pages : illustrations ; 28 cm.|
Introduction and research approach --
Appraisal and implementation --
|Series Title:||Report (National Cooperative Highway Research Program), 162.|
|Responsibility:||John C. Laughland [and others].|