NEW YORK–(BUSINESS WIRE)–Kroll Bond Rating Agency (KBRA) has assigned a long-term rating of AA+ with a Stable Outlook on the Metropolitan Transportation Authority (MTA)’s Transportation Revenue Refunding Bonds, Series 2017D. At the same time, KBRA has affirmed the long-term rating of AA+ with a Stable Outlook on the MTA’s outstanding transportation revenue bonds. KBRA has also affirmed the short-term rating of K1+ on the following Transportation Revenue Bond Anticipation Notes, Series 2015B-2