LEADER 01508nam  2200409 a 450 
001 9910700216303321
005 20120716124954.0
035   $a(CKB)5470000002408817
035   $a(OCoLC)799882756
035   $a(EXLCZ)995470000002408817
100   $a20120716d2009      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 00$aRectangular rapid flash beacon (RRFB)$b[electronic resource]
210  1$a[Washington, D.C.] :$cU.S. Dept. of Transportation, Federal Highway Administration,$d[2009]
215   $a1 online resource (2 unnumbered pages) $ccolor illustrations
300   $aTitle from title screen (viewed on July 16, 2012).
300   $a"May 2009."
300   $a"FHWA-SA-09-009."
320   $aIncludes bibliographical references.
517   $aRectangular rapid flash beacon 
606   $aRoads$zUnited States$xInterchanges and intersections$xSafety measures
606   $aTraffic signs and signals$zUnited States
606   $aPedestrian crosswalks$zUnited States$xSafety measures
615  0$aRoads$xInterchanges and intersections$xSafety measures.
615  0$aTraffic signs and signals
615  0$aPedestrian crosswalks$xSafety measures.
712 02$aUnited States.$bFederal Highway Administration.
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910700216303321
996   $aRectangular rapid flash beacon (RRFB)$93153126
997   $aUNINA