Developments of Regional Impact

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Developments of Regional Impact

Per state law (OCGA §50-32-14), GRTA is required to review all Developments of Regional Impact (DRIs) within its 13-county metro Atlanta jurisdiction. GRTA’s purpose is to evaluate the proposed development’s effect on the surrounding transportation infrastructure and to identify options to mitigate current and future impacts to mobility using best-practice standards for transportation and land use.

A DRI is a large, master-planned development that exceeds a threshold size and land use type determined by the Georgia Department of Community Affairs. The Regional Commission determines if the project warrants a DRI review. GRTA reviews all DRIs as determined by the Regional Commission. GRTA and the Regional Commission coordinate to maximize the time and information provided and work together to involve partner agencies, adjacent local governments and the applicant’s consultant team.


The GRTA DRI Review Procedures establishes the requirements of the GRTA required Transportation Study for Developments of Regional Impacts. The GRTA DRI Review Procedures also establishes how GRTA reviews DRIs.

GRTA staff is in the process of updating the existing 2013 GRTA DRI Review Procedures. The update process has included peer research, a stakeholder survey and outreach to key stakeholders on the proposed update’s direction. An Initial Draft of the GRTA DRI Review Procedures was open for comment between October 26 to November 16, 2020.  GRTA staff incorporated stakeholder comments into the Final Draft of the GRTA DRI Review Procedures.  The Final Draft was released on January 4, 2021 for a 30-day comment period ending February 2, 2021. GRTA staff expects to present the Final Draft to the GRTA Board for adoption on March 10, 2021 with the DRI Review Procedures becoming effective on April 9, 2021.

2013 Procedures and Principles
2013 Technical Guidelines

For more information contact:

Andrew Spiliotis