This mini-roundabout serves about 50-60 homes only. It cannot therefore be justified and probably should not have been installed. In these circumstances, through drivers lose respect for the roundabout as there is insufficient traffic to yield to. With the straight-through paths open to drivers along the through route this could be a recipe for problems. A speed table nearby is the only speed controlling feature (to the SW on Satellite view).
Lessons to be learnt: Avoid using mini-roundabouts just as a traffic calming tool. They should be justified in their own right and then will have a useful traffic calming effect.