Choose one port in South Africa and do a comparative study on another international port that may have some similarities with the chosen SA port, measuring port performance using just the three key components highlighted above. Comment on the significance of the figures you come up with and the implications of such figures for South African ports. In your answer I should like to see not only comparative calculations but at least a fair understanding of the economies in which these ports are found and their relative position on the international trade routes; the (dis)advantages that comes with that and what their performance means for their international competitiveness.