These prisons were built with the American Philadelphia system as a model, which amongst other things meant that common cells were replaced by individual cells where prisoners would be able to contemplate their fate.
Ovaj je zatvor izgrađen po filadelfijskom sistemu, što znači da su zajedničke ćelije bile zamijenjene pojedinačnim ćelijama u kojima su zatvorenici mogli razmišljati o svojoj sudbini.