Abstract:In order to improve the traffic efficiency of aircraft routes in areas affected by strong convective weather and optimize the diversion path of aircraft under the influence of strong convective weather, a multi-objective diversion path planning method based on the NSGA-III algorithm is proposed. By constructing a flight environment model and delineating flight restricted areas according to airspace conditions, and on this basis, focusing on the impact of strong convective weather in the area where the aircraft is diverted, the aircraft operation cost is the lowest, the diversion angle is the smallest, and the non-linear coefficient is the smallest , with the goal of minimizing the impact of weather, using the NSGA-III algorithm to comprehensively consider safety, economy and other factors, conduct multi-target diversion planning for a certain airspace route under strong convective weather, and conduct simulation analysis. The research results show that NSGA-III can comprehensively consider the four proposed goals and calculate multiple effective alternative diversion paths. Under the conditions of selecting two diversion points and taking into account the economy and rationality of the operation while ensuring the safe operation of the aircraft, a total of 91 alternative routes are available.