...NEW YORK (S&P Global Ratings) July 20, 2017--S&P Global Ratings has revised its outlook on the Kentucky Turnpike Authority's economic development road revenue bonds to negative from stable. In addition, we assigned our '##-' rating to the authority's series 2017 economic development road revenue bonds and 2017B economic development road revenue refunding bonds (revitalization projects), issued for Kentucky. At the same time, we affirmed our '##-' ratings on the authority's economic development road fund bonds outstanding. "The outlook revision reflects our opinion of potentially increasing operating costs, particularly due to increasing retirement expenses because of eroding pension funding levels and actuarial assumption changes," said S&P Global Ratings credit analyst Timothy Little. Bond proceeds from the series 2017A bonds will be used to finance various revitalization projects, including economic development road projects. The 2017B bonds are intended to advance refund all or a portion...