1. Estimation of critical gap on a roundabout by minimizing the sum of absolute difference in accepted gap data;Ahmad;Can. J. Civil Eng.,2015
2. “A review of gap acceptance capacity models,”;Akçelik,2007
3. “An assessment of the highway capacity manual 2010 roundabout capacity model,”;Akçelik,2011
4. Calibration of the bunched exponential distribution of arrival headway;Akçelik;Road Transp. Res.,1994
5. “Capacities and delays at roundabouts in the Netherlands,”;Arem,1992