Xiaoshan airport is an old air traffic control?

Weather factors. According to official website of Xiaoshan Airport, the reasons for airport control include weather, such as thunderstorm, which is not suitable for flying, forced flight adjustment, airspace control, and airlines' own reasons, such as aircraft failure. Air traffic control, also known as flight control, is a general term for the relevant departments to supervise, control and enforce the management of aircraft flying in the air according to the flight rules promulgated by the state.