01510oam 2200445 a 450 991069692710332120230902161649.0(CKB)5470000002383623(OCoLC)501188635(EXLCZ)99547000000238362320100121d2009 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierSurface transportation[electronic resource] efforts to address highway congestion through real-time traffic information systems are expanding but face implementation challenges : report to congressional requesters[Washington, D.C.] :U.S. Govt. Accountability Office,[2009]1 online resource (33 pages) illustrations, map, chartsTitle from PDF title page (GAO, viewed Jan. 21, 2010)."November 2009.""GAO-10-121R."Includes bibliographical references.Surface transportation Traffic monitoringTraffic congestionTraffic engineeringReal-time data processingTraffic monitoring.Traffic congestion.Traffic engineering.Real-time data processing.CBTCBTCBTGPOBOOK9910696927103321Surface transportation2880634UNINA