U.S. transportation research at a crossroads

Science in the United States has become increasingly politicized, with a wave of recent federal grant terminations and censorship of equity and climate-related work. U.S. transportation research has not been immune. The Transportation Research Board (TRB), a stalwart convener and funder, has canceled research contracts, undertaken a dramatic internal restructuring, and appears poised to censor research presented at its marquee annual meeting. These shifts are significant in part because TRB espouses the values of scientific objectivity, independence, and integrity. Accordingly, TRB has historically funded work identified as needed by the broader research community and has been a home for the free and open exchange of ideas at its conferences, meetings, and events. We argue that TRB’s recent actions suggest that it is no longer able to act with scientific integrity. In this commentary, we provide a brief history of TRB and its objectives, discuss its recent actions, and propose paths forward for researchers and practitioners interested in pursuing equity, justice, and climate change-oriented work.