Embedded LEDs in signs
Publisher: U.S. Dept. of Transportation, Federal Highway Administration
Published: 2009
Place of publication: Washington, D.C.]
Language: eng
Format: [electronic resource]
Subjects: Light emitting diodes; Road markings; Roads; Interchanges and intersections; Safety measures
Other titles: Embedded light emitting diodes in signs
Notes: Title from title screen (viewed June 7, 2011).

"May 2009."

"FHWA-SA-09-006."