Self management is all around us; it is just difficult to distinguish. The differences between traffic control through traffic lights (command and control) and roundabouts (self direction) was not lost on the designers of the Fractal model. What is startling however is the effectiveness & efficiency of roundabouts as compared with the Traffic Light system. It is not by mistake that we have develop an environment that encourage self management; the results are quite remarkable.
Its worth reading the document; really roundabouts are indeed a much safer and effective way of moving traffic through junctions – The Case for More Traffic Roundabouts