CHICAGO--(BUSINESS WIRE)--Fitch Ratings has affirmed the ratings for the following standalone grant anticipation revenue vehicle (GARVEE) bonds: --Alaska Railroad Corp. at 'BBB'; --Chicago Transit Authority at 'BBB'; --Georgia State Road & Tollway Authority at 'A+'; --Idaho Housing and Finance Association at 'A+'; --Kentucky Asset Liability Commission at 'A+'; --Maine Municipal Bond Bank at 'A+'; --Oklahoma Department of Transportation at 'A+'; --Rhode Island Economic Development Corp. at '