Some interesting numbers from http://www.arrivealive.co.za/documents/March_2008_-_Road_Traffic_Report_-_March_2008.pdf:
Minibuses only account for 3% of the vehicles on the road but contribute 10% of the fatalities.
The number of unlicensed minibuses increased 96%
Minibuses only account for 3% of the vehicles on the road but contribute 10% of the fatalities.
The number of unlicensed minibuses increased 96%