Cover image for Traffic control devices, visibility, and traffic signal systems.
Traffic control devices, visibility, and traffic signal systems.
Title:
Traffic control devices, visibility, and traffic signal systems.
Author:
National Research Council (U.S.). Transportation Research Board.
ISBN:
9780309055741
Publication Information:
Washington, D.C. : National Academy Press, 1993.
Physical Description:
v, 112 p. : ill. ; 28 cm.
Series:
Transportation research record ; 1421.
General Note:
"Highway operations, capacity, and traffic control."

"Transportation Research Board, National Research Council."
Holds: Copies: