01329nam 2200361 450 991070676890332120180108132822.0(CKB)5470000002457767(OCoLC)1018310319(EXLCZ)99547000000245776720180108d2017 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierRailroad safety, quiet zone analyses and inspections could be improved : report to congressional requesters[Washington, D.C.] :United States Government Accountability Office,2017.1 online resource (ii, 45 pages) color illustrations, color maps"GAO-18-97.""October 2017."Includes bibliographical references.Railroad safety, quiet zone analyses and inspections could be improved RailroadsUnited StatesSafety measuresRailroad crossingsUnited StatesRailroadsSafety measures.Railroad crossingsGPOGPOBOOK9910706768903321Railroad safety, quiet zone analyses and inspections could be improved : report to congressional requesters3268417UNINA