How to understand that China's ancient urban planning system has been in the forefront of the world for a long time?

The embryonic form of China city began in Shang Dynasty, and in Zhou Dynasty, there was the first climax of China's city building. Since then, the cities in China have been developing, and the number and scale have been increasing. In the planning of these ancient cities in China, the requirements of war defense, the influence of Feng Shui culture and the infiltration of traditional culture all played a decisive role.

In the early Shang Dynasty, Yanshi Mall was built, which was the embryonic form of China ancient city. During the Zhou Dynasty, politics, economy, science and technology and culture all developed greatly. During this period, two capital cities, Feng Hegao, were built, which was the first clearly recorded urban planning event in the ancient history of China. Urban planning in the Spring and Autumn Period and the Warring States Period has the function of war defense. During the Three Kingdoms period, the layout of Yecheng built by Cao Cao in Wang Wei 2 13 began to adopt the layout of urban functional zoning. Chang 'an City in Sui and Tang Dynasties was built in the 7th century, with neat layout, clear zoning and very regular planning. In the Yuan Dynasty, another capital in China's history, Dadu, appeared. Urban planning combined the requirements of economic, political and cultural development at that time.