System-wide safety improvements : an approach to safety consistency - Chatfield, Benjamin V.; Council, Forrest M.; American Association of State Highway and Transportation Officials; United States. Federal Highway Administration; National Research Council (U.S.). Transportation Research Board (Washington, D.C. : Transportation Research Board, National Research Council, 1987)
"Research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration."
"September 1987."
Includes bibliographies.
Keywords: Roads -- Safety measures -- Standards -- United States