The legibility of highway guide signs with special reference to cardinal direction indications
By: prepared for Federal Highway Administration, Offices of Research & Development, Traffic Systems Division.
Contributors: United States. Federal Highway Administration. Traffic Systems Division.
Publisher: The Division; National Technical Information Service [distributor
Published: 1981
Place of publication: Washington, D.C; Springfield, Va
Language: eng
Number of pages: 28
Subjects: Traffic signs and signals -- United States.; Legibility (Printing)
Notes: Cover title.

"Final report."

"June 1981."

"Report no. FHWA/RD-80/170."

Bibliography: p. 28.