Use of rumble strips to enhance safety /
Douglas W. Harwood.
|Main Author:||Harwood, D. W.|
Washington, D.C. : National Academy Press, 1993.
Roads > Roads / Safety measures.
"Project 20-5 FY 1990 (Topic 22-13)"--T.p. verso.
"Research sponsored by the American Association of State Highway and Transportation Officials in cooperation with the Federal Highway Administration."
"Transportation Research Board, National Research Council."
74 p. :
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