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|Additional Physical Format:||Online version:
Parsonson, Peter S.
Signal timing improvement practices.
Washington, D.C. : Transportation Research Board, National Research Council, 
|All Authors / Contributors:||
Peter S Parsonson; National Research Council (U.S.). Transportation Research Board.; 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."
|Description:||88 pages : illustrations ; 28 cm.|
|Series Title:||Synthesis of highway practice, 172.|
|Responsibility:||Peter S. Parsonson.|