Research on transportation and environmental issues is conducted by a wide range of agencies and organizations, including state and federal transportation agencies, University Transportation Centers, the Transportation Research Board (including the National Cooperative Highway Research Program), and others. Types of research include:
The Center for Environmental Excellence by AASHTO provides information for practitioners on research programs and opportunities.
NCHRP Project 25-25 supports improvements to analytical methods, decision support tools, procedures, and techniques employed by practitioners to support statewide and metropolitan transportation planning, programming, and development.
The Transportation and Environmental Research Ideas (TERI) database is a central storehouse for tracking and sharing new transportation and environmental research ideas.