| The Road System
South Africa has the most extensive road network of any country on the African continent with approximately 464,000 miles of maintained roads. The most highly developed roads are called ‘national roads’ and are similar to the interstate highway system found in the US. There are roughly 10,000 miles of national roads in South Africa and they are maintained by the South African National Roads Agency (Sanral). According to Transport World Africa a whopping 88 percent of all freight in South Africa is moved by truck making the road network there a very important resource.
   
By contrast, the states of Texas, California and Pennsylvania have approximately 2,718,000 miles of maintained roads and approximately 7,600 miles of interstate highways. In the US, trucking accounts for approximately 60 percent of all freight movement and for approximately 12 percent of all exports being moved out of the country.
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