The metropolitan correctional centers opened in the mid 70s were a generation of prisons designed to cater for the new-generation prison system. They are designed to cater fro high and varied populations. They hold both female and male offenders and those who are awaiting trial or sentencing. The community based centers are designed to house prisoners who have been sentenced for six months or less. Otherwise those who are viewed as high risk are taken to higher security institutions Carlson and Garrett (2007).
These prison designs are created according to the need for incarcerating the inmates, which depends on the level of security and needs. They also cater for the rehabilitation of the inmate depending on the sentences issued. This is major shift from the earlierPennsylvaniaand auburn models that were more punitive models because of their harsh architecture.