街巷制
街巷制-
唐宋之际都城规制的变化主要表现在从唐代都城的三城相叠转变为宋代的三城相套，以及从封闭的坊市制度转变为开放式的街巷制。
Tang and Song Dynasty capital of regulation changes are mainly manifested in the three cities from the Tang Dynasty capital of the Song Dynasty stacked into a three-phase sets of the city , and Fang from the closed system into an open city street system .