2 options
Rectangular rapid flash beacon (RRFB).
- Format:
- Book
- Government document
- Language:
- English
- Subjects (All):
- Roads--Interchanges and intersections--United States--Safety measures.
- Roads.
- Traffic signs and signals--United States.
- Traffic signs and signals.
- Pedestrian crosswalks--United States--Safety measures.
- Pedestrian crosswalks.
- Roads--Interchanges and intersections--Safety measures.
- United States.
- Physical Description:
- 1 online resource ([2] pages) : color illustrations
- Place of Publication:
- [Washington, D.C.] : U.S. Dept. of Transportation, Federal Highway Administration, [2009]
- Notes:
- Title from title screen (viewed on July 16, 2012).
- "May 2009."
- Includes bibliographical references.
- "FHWA-SA-09-009."
- OCLC:
- 799882756
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