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|All Authors / Contributors:||
David G Manning; National Research Council (U.S.). Transportation Research Board.; American Association of State Highway and Transportation Officials.; United States. Federal Highway Administration.
|Notes:||"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."
|Description:||69 pages : illustrations ; 28 cm.|
|Series Title:||Synthesis of highway practice, 220.|
|Responsibility:||David G. Manning.|