Traffic Control Device Challenge winners honored at ATSSA’s 50th Anniversary Convention & Traffic Expo Traffic Control Device Challenge winners honored at ATSSA’s 50th Anniversary Convention & Traffic Expo Pam / Monday, January 27, 2020 0 11375 Article rating: 5.0 FREDERICKSBURG, Va. (Jan. 27, 2020) – The American Traffic Safety Services Association (ATSSA), in partnership with the National Academy of Sciences’ Transportation Research Board (TRB), honored the winners of the Traffic Control Device Challenge (TCD Challenge) today during a ceremony at the Association’s 50th Anniversary Convention & Traffic Expo. Engineering students from across the U.S. competed in the TCD Challenge, which was titled: “Connected and Autonomous Innovations for Improving Work Zone Safety.” Read more