What are the disadvantages of traditional closed cities?

Public resource management, urban environmental pollution and urban traffic management.

1. Public resource management: Urban public resources are very limited, and there is a certain degree of competition, which leads to excessive use and waste of resources.

2. Urban environmental pollution: Urban environmental pollution is becoming more and more serious. Everyone wants to enjoy a convenient and efficient lifestyle, and often ignores the protection and governance of the environment.

3. Urban traffic management: Urban traffic congestion is a serious problem. Because everyone needs to use the car, at the same time, everyone's right to use it cannot be restricted, so traffic management is very difficult.