...NEW YORK (S&P Global Ratings) April 6, 2018--S&P Global Ratings raised its rating on the North Carolina Turnpike Authority (NCTA) appropriation revenue bonds outstanding to '##+' from '##' for the Triangle Expressway System and Monroe Connector debt. At the same time, we assigned our '##+' rating to the NCTA's series 2018A Triangle Expressway System appropriation revenue refunding bonds. In addition, we affirmed our '###' rating on North Carolina's general obligation (GO) bonds and our '##+' rating on the state's appropriation-backed debt outstanding. The outlook on all the ratings is stable. "The upgrade reflects the application of our "Issue Credit Ratings Linked To U.S. Public Finance Obligors' Creditworthiness" criteria," said S&P Global Ratings credit analyst Timothy Little. The criteria were published Jan. 22, 2018, on RatingsDirect. The NCTA bonds are special obligations of the authority secured by an annual appropriation to the authority by the state from the North Carolina Highway...