A community may outgrow its hospitals and schools and look forward to building new ones, but in the case of prisons and 一个社区可能会因为医院与学校不够用而期望新建一些,但对于监狱而言,总是倾向于扩建或者保持不变(在现有的空间下挤入更多的囚犯),而不是建造新的监狱。