What are the causes of flow control problems?

1. Human factors.

At this stage, there is a gap in my country's air traffic flow control system and its corresponding staffing. The number of control personnel is too small, which has an impact on the level of flow control to a certain extent.

2. Control factors.

In recent years, my country’s flight volume parameters have changed by about 28%. On this basis, the air traffic network has not changed much and is subject to the low technical level of the controllers, resulting in the inability to meet the increasing demand. flight volume control requirements, resulting in flow control problems.

3. Airspace occupation factors.

Judging from the current development of my country’s aviation industry, the area of ??available airspace for my country’s civil aviation is relatively small and cannot meet the increasing number of airspace users. The increase in the number of users requires a larger free area. However, in the limited airspace area , the number of airspace users increases, and the remaining airspace range shrinks accordingly. There is a conflict between the two. To alleviate the conflict, flow control is required.

4. Weather factors.

Aviation safety is affected by weather factors. Weather such as lightning, heavy fog, rain and snow may cause route closures. Airlines generally cancel scheduled flights or delay flights in such bad weather. To prevent aviation accidents, once a flight is delayed or canceled, it will cause changes in air traffic flow. To ensure the safety of air traffic, flow control is required.

5. Flight factors.

Once important flight activities occur, it will not only affect the relevant airport operations, but also affect normal route operations. In order to ensure that flight activities can be completed smoothly, the control center must perform flow control work.