Georgia. Department of Transportation. Office of Performance-based Management and Research. "Evaluation of factors influencing roundabout performance." University of Georgia. Map and Government Information Library. 2021-06, https://dlg.galileo.usg.edu/do:dlg_ggpd_s-ga-bt700-pr4-bm1-b2021-br6-belec-p-btext.

Georgia. Department of Transportation. Office of Performance-based Management and Research (2021-06). Evaluation of factors influencing roundabout performance. Retrieved from https://dlg.galileo.usg.edu/do:dlg_ggpd_s-ga-bt700-pr4-bm1-b2021-br6-belec-p-btext

Georgia. Department of Transportation. Office of Performance-based Management and Research. "Evaluation of factors influencing roundabout performance." 2021-06. November 4, 2026. https://dlg.galileo.usg.edu/do:dlg_ggpd_s-ga-bt700-pr4-bm1-b2021-br6-belec-p-btext.