I know there are lots of other people that are in the same boat(hence all of the traffic), so here is my favourite traffic website. http://www.i-traffic.co.za/
On this website you can get a sneak peak of the photos taken by the highway patrol cameras and you can stream for up to 10seconds. It has up to date news on the roadworks and traffic incidents.
This site has spared me a lot of grief, hope it helps you too.