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Capacity Analysis of Selected Intersections on Mampong Road, Kumasighana Using Micro Simulation Model

J K Borkloe, E K Nyantakyi, and G A Mohammed
Department of Civil Engineering, Kumasi Polytechnic, Kumasi-Ghana

Abstract—Signalized intersections are critical elements of an urban road transportation system and maintaining these control systems at their optimal performance for different demand conditions has been the primary concern of the traffic engineers. 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. This study analyzed capacity of selected intersections on Mampong Road from Kotoko intersection to New Suame Road intersection. Traffic and geometric data were collected at each of the four intersections. The intersection capacity analysis gave rise to the design of a signalized intersection control at the Suame roundabout. Signalized intersection with 5 approach lanes was proposed at Suame roundabout. Exclusive pedestrian phases were included in the design to protect pedestrians. The Kotoko Road and Suame New Road have reached their capacities hence signalized intersection with 3 approach lanes was proposed at the Kotoko Road and Suame New Road on the Mampong Road to control all the movements and improve upon the performance of the intersections. 

Index Terms—performance analysis, suame roundabout, capacity analysis, transportation network performance, mampong road

Cite: J K Borkloe, E K Nyantakyi, and G A Mohammed, "Capacity Analysis of Selected Intersections on Mampong Road, Kumasighana Using Micro Simulation Model," International Journal of Structural and Civil Engineering Research, Vol. 2, No. 3, pp. 39-61, August 2013.