During the Yuan Dynasty, the streets in Beijing were controlled to some extent. The width of the main street is 24 steps, the width of the small street is 12 steps and the width of the alley is 6 steps. At that time, the width of the main street was 5 feet, about 1.5 meters. From this, it is estimated that the width of the small street is 36 meters, and the width of the small street is 18 meters. At that time, probably because of the small population, the streets were extremely clean and tidy.

By the Ming Dynasty, some changes had taken place in the control of streets. For example, the width of the main road from Zhengyangmen to Yongdingmen on the central axis is 25 ~ 28 meters. Di 'anmen Street in the Yuan and Ming Dynasties was only 15.7 meters wide in the late Qing Dynasty.

Jewelry Street and Grain Shop Street on the west side of Qianmen Street were originally part of Qianmen Street. Because vendors have been setting up stalls on the street for a long time and have been divided into two streets, the width of the street is naturally not as good as before. This is probably how the Fruit Hutong on the east side of Qianmen Street, which is parallel to the main street, was formed.

Kyle polo, an Italian, once praised the wide and tidy streets in Beijing during the Yuan Dynasty: the street was so straight that you could see the other side from one end, so that you could see the door from the street. So if the street environment is not good, it is difficult to see another door from a distant door.