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FRA approves BNSF's PTC system, marks first authorization since 2005's train-control regulation revisions »
USDOT seeks to help states enact public-private partnership laws, spur transportation infrastructure investment »
BNSF sets coal tonnage record in 2006 »
Iowa DOT, Illinois county OK funds to improve infrastructure for proposed ethanol plants »
MBTA to purchase locomotives, commuter-rail coaches »