LEADER 01328nam  2200361   450 
001 9910705138403321
005 20140306095750.0
035   $a(CKB)5470000002447974
035   $a(OCoLC)871537972
035   $a(EXLCZ)995470000002447974
100   $a20140306d2013      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $2rdacontent
182   $2rdamedia
183   $2rdacarrier
200 10$aPositive train control $eadditional authorities could benefit implementation : report to the Chairman, Committee on Commerce, Science, and Transportation, U.S. Senate
210  1$a[Washington, D.C.] :$cUnited States Government Accountability Office,$d2013.
215   $a1 online resource (ii, 42 pages) $ccolor illustrations
300   $aTitle from title screen (viewed Dec. 23, 2013).
300   $a"August 2013."
300   $a"GAO-13-720."
320   $aIncludes bibliographical references.
517   $aPositive train control 
606   $aRailroads$xAutomatic train control$zUnited States
615  0$aRailroads$xAutomatic train control
712 02$aUnited States.$bCongress.$bSenate.$bCommittee on Commerce, Science, and Transportation,
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910705138403321
996   $aPositive train control$92883461
997   $aUNINA