Hi, have you seen this expat guide to moving to Johannesburg? It's got a range of good info including road safety.

What else do you need to know about driving in Joburg? We drive on the left-hand side, rush hour is very congested and slow, minibus taxis should be deferred to as they are pretty reckless, and road conditions are very good. Cars are expensive, petrol is cheap, speed cameras lurk under bushes and in trees (some of which are plastic fake cellphone cell phone towers).