The tower represent the literal tower at the center of the development. As the plan radiates from the center control point as does the level of controls. The guards are allocated at the center as the prisoners are along the perimeter. The prisoners are each given the same amount of space and type of room layout, avoiding unfair accommodations. The circular plan also controls the distance of sight afforded to the prisoner, limiting their understanding of the development as a whole. This suggests another tactic of