What happened to Pudong Airport?

There are many reasons for flight delay, and flow control is the most important one. Then why is there flow control? The weather is one of the reasons. However, it is rare for the airport weather to reach the standard of no take-off and landing, mostly because the weather at the entrance of the corridor on the route affects the departure and approach of the aircraft. Because of the weather, planes often need to make detours. Because the plane can't take the normal route, it brings some pressure to our control commander. There are many planes flying around, and the control is often out of control. The leaders of the Civil Aviation Administration of China also require our aircraft personnel and controllers to communicate in English for political achievements, which increases the difficulty. In order to solve this problem, the only control method is flow control! The so-called flow control is flow control. To put it bluntly, it used to be a 20-kilometer plane, but now it needs a 100-kilometer plane. This is the main reason for flight delay!