This year's Annual Meeting and Exposition in Nashville, Tenn., features more public sector participation than ever before. The event will kick off on Sunday, April 21 with a State DOT Roundtable featuring 20 State DOT CEOs from across the country, as well as feature senior US Department of Transportation (DOT) officials including Under Secretary for Policy Polly Trottenberg, Federal Highway Administrator Victor Mendez, National Highway Traffic Safety Administrator David Strickland, Federal Motor Carrier Saf