Fitch Rates Grand Pkwy Trans Corp TELA Bonds 'AA-'; Outlook Stable The Herald | HeraldOnline.com Under the trust agreement, GPTC's pledge and assignment to the trustee for bondholders includes its right, title and interest in the TELA. KEY RATING DRIVERS. CREDIT ENHANCEMENT OF TXDOT: The rating is based on the credit .... About 90% of SHF funds ... |