Within TRB, the Cooperative Research Programs (CRP) are applied research programs-including the National Cooperative Highway Research Program (NCHRP), Transit Cooperative Research Program (TCRP), Airport Cooperative Research Program (ACRP), Behavioral Traffic Safety (BTSCRP), and others-that develop practical, implementable solutions to current and emerging transportation issues through stakeholder-driven research and collaboration. D. in a discipline relevant to transportation, public policy, research management, or a closely related field; or a master's, or bachelor's degree in a relevant discipline with significant professional experience demonstrating advanced subject matter expertise, leadership in complex projects or programs, and independent research, analysis, or policy development responsibilities.