1. Aagaard, P.E., January 22–28, 1996. Recent Research into Capacity in Danish Roundabouts. In: Presented at 74th Annual Meeting of the Transportation Research Board, Washington, D.C.
2. Akelik, R., Chung, E., Besley, M., 1998. Roundabouts: Capacity and performance analysis. Research Report No. 321, ARRB Transport Research Ltd, Australia.
3. Capacity of large dual and triplelanes roundabouts during heavy demand conditions;Al-Madani;Arab. J. Sci. Eng.,2013
4. “Capacity of roundabouts in Jordan;Al-Masaeid;Transp. Res. Rec. J. Transp. Res. Board,1997
5. Capacity of One-Way Yield-Controlled Intersections;Al-Masaeid,1995