NEW YORK (Standard&Poor's) June 30, 2015--Standard&Poor's Ratings Services raised its rating to 'AAA/A-1' from 'AA-/A-1' on Triborough Bridge and Tunnel Authority (TBTA), N.Y.'s series 2005B-3 general revenue variable-rate bonds. At the same time, Standard&Poor's assigned its 'AA-' underlying rating (SPUR) to the bonds. "The upgrade reflects the change in structure to a direct-pay letter of credit from an uninsured liquidity structure," said Standard&Poor's credit analyst Joseph Pezzimenti. The long-term and short-term components of the rating will now be based on the letter of credit (LOC) provided by Bank of Tokyo-Mitsubishi UFJ Ltd. (A+/A-1) and our application of the low correlation joint criteria is based on our 'AA-' SPUR on the authority. Previously,