The presentation will involve highlighting several practical problems through means of slides and discussion: The effect of the raised central island at single lane roundabouts on large trucks. The slowing down of high speed traffic on approaches to roundabouts. The friction -radius relationship at roundabout curves. The importance of proper tapered islands at roundabout approaches. Safely accommodating pedestrians at roundabouts. Turning movements at double lane roundabouts.
Papers presented at the 36th Southern African Transport Conference, CSIR International Convention Centre, Pretoria, South Africa on 10-13 July 2017.