The planning research digest organizes and provide access to clear, succinct research summaries written in non-technical language and indexed in an intuitive, user-friendly manner. It also functions as a portal to the wider universe of planning research: this site includes links to each publication, and to related research, externally hosted elsewhere on the internet. Together, these capabilities provide planning professionals with both an efficient means to keep abreast of recent research and a convenient way to identify and access individual resources of particular interest.

This website was developed through NCHRP Project 08-36/139: Planning Research Digests. It was created with input and support from TRB Committee ADA 30 on Transportation Planning for Small- and Medium-Sized Communities. Upon the conclusion of the research effort site will be maintained on an ongoing basis by ADA 30 and AASHTO, the American Association of State Highway and Transportation Officials. For administrative questions, please contact the site administrators at