Assessment of the road safety performance of four roundabouts in Kumasi, Ghana
Item
Title
Assessment of the road safety performance of four roundabouts in Kumasi, Ghana
Date
2018
Language
English
Abstract
Upgrade of the Ejisu-Kumasi section of the N6 saw the construction of roundabouts at selected intersections.Their use appears challenging particularly for vehicles with elevated Centre-of-Gravity. The objective of this study was to establish the relative risk of traffic accident deaths or hospitalized injuries at the roundabouts. Five-year crash data covering a 100 m stretch upstream and downstream of the roundabouts were analysed. A total of 119 crashes occurred with 18% casualty hospitalization and 12% fatalities. Compared with the Ejisu roundabout, fatal or hospitalized injuries were significantly higher at the Boadi (OR = 25.6, p = 0.0021) and Kwame Nkrumah University of Science and Technology Police Station Junctions (OR = 48.2, p < 0.001). Occupants of buses, heavy goods vehicles and riders of two wheelers were at elevated risk of deaths or serious injuries. Crash severity at the round abouts was aggravated by night-time, steep gradients and adverse cambers. It is recommended that, signalization and grade separation should be used in the current arrangement where appropriate.
Collection
Citation
“Assessment of the road safety performance of four roundabouts in Kumasi, Ghana,” CSIRSpace, accessed December 24, 2024, http://cspace.csirgh.com/items/show/784.