This; https://arrivealive.co.za/Driving-around-Traffic-Circle-Roundabout is a link to the Arrive Alive website, in particular, the page dealing with the use of traffic circles (roundabouts).
The two circles in Musina on the N1 outside the Great North Road Plaza show frequent lack of knowledge of these rules. The driving examiners in Musina must ensure that all candidates know exactly how to use the circles.
Of particular concern is the current practice by taxi drivers to stop either in the approach to the circle, or, believe it or not, in the circle itself for passengers to alight or enter.
I’m not sure where all of the Traffic Wardens are, who were all over town prior to the festive season, but a few should be detailed at each of the two circles to deal with transgressors.