Relative visibility of increased legend size vs. brighter materials for traffic signs
Title:
Relative visibility of increased legend size vs. brighter materials for traffic signs
Author:
Mace, Douglas J.
Personal Author:
Publication Information:
McLean, Va. : Federal Highway Administration, Office of Research and Development ; [Springfield, VA : Available through the National Technical Information Service, 1994]
Physical Description:
v, 44 p. : ill. ; 28 cm.
General Note:
Cover title.
"December 1994."
Holds: Copies: