Abstract—Roundabouts are an increasingly popular alternative to traffic signals for intersection control in the United States. Roundabouts have a number of advantages over traffic signals depending on the conditions. They reduce the severity of crashes since head-on and right-angle conflicts are nearly eliminated. They reduce through traffic speeds to provide a "calmer" roadway environment. They may consume less land area since turn pocket lanes are not needed and also have lower energy and maintenance costs. This study analyzed performance and capacity of Bekwai roundabout in Kumasi, Ghana using micro simulation model. Traffic and geometric data were collected on the field. The analysis revealed that Bekwai roundabout was operating at a level of service F, which represented worst conditions. Signalized intersection with 4 approach lanes was proposed to control all the movements. Exclusive pedestrian phases were proposed to protect pedestrians. 

Index Terms—performance analysis, Bekwai roundabout, capacity analysis, Synchro/SimTraffic

Cite: E K Nyantakyi, J K Borkloe, A Obiri-Yeboah, and G A Mohammed, "Performance and Capacity Analysis of Bekwai Roundabout on the New Bekwai Road, Kumasi-Ghana Using Micro Simulation Model," International Journal of Structural and Civil Engineering Research, Vol. 2, No. 4, pp. 62-74, November 2013.