唐中后期以至五代,城市的兴衰发生变化,政局动荡,人口增长,城市管理面临一系列新问题,如夜间活动增多、街坊连用、违制起楼等。为应对这些问题与挑战,新的都城管理制度形成,主要内容有:新治安机构产生,新管理区划出现,新街道制度形成。 During the late Tang and even the Five Dynasties, the vicissitudes of the cities changed, political turmoil, population growth and urban management faced a series of new problems such as increased night activities, use of neighbors and unauthorized building. In response to these problems and challenges, the new metropolitan management system has been formed. The main contents are: the emergence of a new law and order agency, the emergence of a new administrative division and the formation of a new street system.