Transportation Research Board
About the Author
The Transportation Research Board (TRB), a division of the National Academies of Sciences, Engineering, and Medicine, is a leading authority in advancing transportation innovation and policy through rigorous research and analysis. Established to foster collaboration among transportation professionals, government agencies, and academia, TRB produces comprehensive resources that guide infrastructure planning, safety improvements, and sustainable mobility solutions worldwide. With decades of expertise, TRB's publications, such as the Highway Capacity Manual, serve as foundational tools for engineers, planners, and policymakers, enabling data-driven decisions that enhance multimodal transportation systems and address evolving challenges like urban congestion and environmental impacts.
