Causes of road traffic accidents occurring in Lubumbashi (1 April–31 May, 2015). It shows different causes of road traffic accidents (RTA) in Lubumbashi; a higher proportion of RTA events was caused by over speeding (32 %), followed by distracted driving (text messaging, calling, chatting; 22 %), overtaking (16 %), careless driving/risky maneuver (15 %) and the influence of alcohol (9 %). Other causes, such as low visibility and technical problem, accounted for less than 5 % each