The common problems in ancient streets are: the decline of characteristics and poor style. With the decline of traditional culture and commerce, the pattern of historical streets and dilapidated architectural styles, infrastructure can no longer meet the needs of modern life. Through subsection transformation, protect and inherit the old street, protect the history and culture of the old street and continue the cultural ecology of the old street. Highlight key points, combine key transformation with flexible transformation, respect the characteristics left over from each historical stage, retain the continuous memory of the development of the times, and create an old street with regional characteristics by means of low intervention. Principles of old street reconstruction

(a) people-oriented, improve people's livelihood. Improve the urban function of the old street area and improve the quality of life of the old street residents.

(2) Scientific planning and strengthening characteristics. According to the way of repairing the old as the old, we will transform the ancient streets and roads, protect historical blocks, ancient buildings and cultural features, and enhance the vitality of old streets.

(three) planning control, step by step implementation. The government is responsible for the transformation of public facilities, focusing on ancient streets and gradually transforming them in stages.

(four) the pipe network and access channels in the courtyard of residential buildings shall be transformed according to the principle of "who supports and who gives priority".