As an international tourist who has never visited Joburg, it can be a very confusing place.  There are many reasons for this:

The boundaries have changed over time
It covers a huge area
There is very poor street signage
There has been no useable tourist public transport, although this is in the process of being changed (see post 23 [...]

From www.topplaces.co.za  
Ground Handling
We offer a complete ground-handling service with shuttles and transfers to and from airports and hotels.  We have offices and staff on duty at the following airports to assist your clients:  Cape Town, Johannesburg, Durban,  Pretoria, Polokwane, Nelspruit, George, Bloemfontein.
 
Getting to Rustenburg, Polokwane and Nelspruit
We are able to offer you fly-in/fly-out options to the above [...]

The Confed cup went very well with Sepp Blatter ending up giving SA’s event a 7/10. One of the big criticisms was the transport to and from the stadiums and this was without the difficulties of getting from A to B without your own vehicle.  But things are happening to change this: 
Rapid Rail or Gautrain
Construction [...]

Getting around Joburg: what are the present options? 
Minibus taxis
Introduced throughout South Africa in 1977, these 15-seater minibuses grew into a massive virtually unregulated industry. As their name suggests, they are more akin to small buses than to traditional taxis or cabs which either roam or are called to a destination (see metered taxis below).  Because [...]

Getting around Joburg : overview
Getting from A to B or more importantly from your B&B to THE game, has been much in the news of late with some horrendous stories about traffic chaos getting to Confed Cup games. Massive changes are in process at the moment – but none of them were ready in time [...]

The shuttles, provided by the City of Johannesburg, will operate for four hours before and after the game.  Shuttles will leave the park and ride areas for the stadium every 15 minutes.   As soon as the matches are over, the shuttles will be back in operation. iTransie 2 Ellis Park promises that most fans will [...]