I am the long-time critic of the roundabouts (e.g. traffic circles) that San Diego is placing at intersections across the city. The euphemism for them is “traffic calming”, by official parlance. I call them danger zones—directly when you go through them and indirectly how they negatively change driving behavior.
The Featured Image and companion are evidence of the first. Two SUVs collided in what looks like one driver failing to yield to another already in the circle. This kind of confusion happens frequently.