Abstract:

In order to study the application rules of shielding and prevent super-high obstacles from affecting the safe operation of airports. First,investigate and analyze the application of shading in many countries such as the United States,the United Kingdom,and India; secondly, aiming at different shading areas in the obstacle restriction plane around the airport, use the collision risk model (CRM) to simulate the collision risk value of the obstacle shading point,and propose different Area shielding rules. Finally,combined with the actual situation, the methods and requirements for different areas within the obstacle limitation surfaces are proposed. The results showed that the shielding areas in the take-off climbing surface and the approach plane are designed according to a certain diffusion rate; the principle of shielding is not recommended in the transitional plane; the inner horizontal plane and the conical plane are divided into areas.

Key words: collision risk model (CRM), obstacle limitation surfaces, shielding methods, collision probability, security risks