Retroreflectivity of roadway signs for adequate visibility
Subtitle: a guide.
Contributors: United States. Federal Highway Administration. Office of Direct Federal Programs.
Publisher: U.S. Dept. of Transportation, Federal Highway Administration, Office of Direct Federal Programs; Available to the public from the National Technical Information Service
Published: 1987
Place of publication: [Washington, D.C.?]; Springfield, Va
Language: eng
Format: Microform
Number of pages: 49
Subjects: Traffic signs and signals -- United States -- Maintenance and repair.; Visibility -- United States.; Automobile driving at night -- United States.
Notes: Shipping list no.: 92-0841-M.

Title from cover.

"Final report."

"November 1987."

"FHWA-DF-88/001."

Includes bibliographical references (p. 44).

Microfiche. [Washington, D.C.] : SuptDocs/GPO, 1992. 1 microfiche : negative.

s 1992 dcu n b.