Methods for identifying hazardous highway elements - Zegeer, Charles V.; National Research Council (U.S.). Transportation Research Board; American Association of State Highway and Transportation Officials; United States. Federal Highway Administration (Washington, D.C. : Transportation Research Board, National Research Council, 1986)
"Research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration."
"November 1986."
Bibliography: p. 50.
Keywords: Roads -- Safety measures; Roads -- Maintenance and repair