http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Assessing indirect effects and cumulative impacts under NEPA
AASHTO Center for Environmental Excellence
American Association of State Highway and Transportation Officials
This handbook focuses primarily on the assessment of indirect effects and cumulative impacts for individual transportation projects. This handbook also briefly describes a range of approaches for using the statewide or metropolitan transportation planning process to address indirect effects and cumulative impacts for a region or corridor. A consistent theme throughout this Handbook is the importance of maintaining a clear distinction between an indirect effects analysis and a cumulative impacts analysis. For that reason, those analyses are addressed separately in the Practical Tips section of the Handbook.
Also available online via the AASHTO website.