Supplemental advance warning devices
By: Brian L. Bowman.
Contributors: National Cooperative Highway Research Program.; National Research Council (U.S.). Transportation Research Board.; American Association of State Highway and Transportation Officials.; United States. Federal Highway Administration.
Series: Synthesis of highway practice / National Cooperative Highway Research Program,; 186; Synthesis of highway practice ;; 186.
Publisher: National Academy Press
Published: 1993
Place of publication: Washington, D.C
Language: eng
Number of pages: 83
Subjects: Traffic signs and signals.; Traffic safety.
Notes: Includes bibliographical references (p. 78).
"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."
"Project  20-5 FY 1989 (Topic 21-09)"--T.p. verso.