TRB’s National Cooperative Highway Research Program (NCHRP) Web-Only Document 171: Identification of Results-Oriented Public Involvement Strategies Between Transportation Agencies and Native American Tribal Communities documents the project that led to development of NCHRP Report 690.

NCHRP Report 690: A Guidebook for Successful Communication, Cooperation, and Coordination Strategies Between Transportation Agencies and Tribal Communities includes guidelines designed to help departments of transportation and tribal communities work together to achieve successful transportation projects on tribal lands.

NCHRP Report 690 explores a wide range of issues and topics to be considered and offers a flexible approach that can be adapted to most situations. The report also includes case studies to illustrate successful practices.