Federal Highway Administration (May 9, 2019). National Highway System: Atlanta, GA(PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration. Archived(PDF) from the original on October 8, 2018. Retrieved August 10, 2019.
"I-285 Top End Express Lanes". Major Mobility Investment Program. April 23, 2019. Archived from the original on November 15, 2019. Retrieved December 28, 2019.
"I-285 Westside Express Lanes". Major Mobility Investment Program. June 17, 2019. Archived from the original on November 15, 2019. Retrieved December 28, 2019.
"I-285 Eastside Express Lanes". Major Mobility Investment Program. June 17, 2019. Archived from the original on November 15, 2019. Retrieved December 28, 2019.
Stephens, Gene (October 15, 1969). "Maddox Opens The Perimeter". The Atlanta Constitution. pp. 1A, 10A. Retrieved August 20, 2022 – via Newspapers.com.
Murchison, Adrianne (May 25, 2012). "Diverging Diamond to Open June 4". Sandy Springs, Georgia Patch. Archived from the original on July 21, 2012. Retrieved September 30, 2014.
Federal Highway Administration (May 9, 2019). National Highway System: Atlanta, GA(PDF) (Map). Scale not given. Washington, DC: Federal Highway Administration. Archived(PDF) from the original on October 8, 2018. Retrieved August 10, 2019.
"I-285 Top End Express Lanes". Major Mobility Investment Program. April 23, 2019. Archived from the original on November 15, 2019. Retrieved December 28, 2019.
"I-285 Westside Express Lanes". Major Mobility Investment Program. June 17, 2019. Archived from the original on November 15, 2019. Retrieved December 28, 2019.
"I-285 Eastside Express Lanes". Major Mobility Investment Program. June 17, 2019. Archived from the original on November 15, 2019. Retrieved December 28, 2019.
Murchison, Adrianne (May 25, 2012). "Diverging Diamond to Open June 4". Sandy Springs, Georgia Patch. Archived from the original on July 21, 2012. Retrieved September 30, 2014.