Carlson and Garrett (2007), with dozens of these building being put up all over America, it was clear it was the preferred prison architect in the 19th century. It is a common model in the system that many associate the prison building with this model.
The security of the building is managed by the prison guards who patrol the building on the ground floor or on the continuous balcony in front of the cell rows Carlson and Garrett (2007). In the early 20th century they introduced the gang locking hardware system, which allowed officers to open one or several doors in one instance to allow inmates out for meals or recreation. The linear system and the supervision practices have been known to lead to neglect and harsh treatment.