Community impacts assessment is not only a critical part of the NEPA process, it is essential for building trust and securing grassroots support for projects. Direct impacts to communities, particularly low-income and minority neighborhoods, are reasonably well understood, and there are proven techniques and methodologies to help practitioners identify and quantify the effects on the human environment. Measuring cumulative impacts on communities, however, has proven more problematic, given the dynamics of community growth and development and the complex nature of these impacts. The objective of this study was to develop guidelines for state DOTs on how best to address recurring community impacts in NEPA documents. The final report has been submitted to AASHTO and can be downloaded here.