Research Of Taxiing Route Optimization For Aircraft Based On The Parallel Runway Of Guangzhou Baiyun Airport

With the vigorous development of China's civil aviation industry,the taxiing efficiency of the airport scene gradually becomes an important factor on restricting its safely and efficiently development.As the research on the running mechanism of the parallel runway taxiway is insufficient,the actual control way of runway crossing is carried out according to the personal experience of the controller,which can lead to the delay of flight and the occurrence of runway invasion.Thus the optimization algorithm of taxi path under parallel runway operation condition is studied in this paper.This paper chooses Guangzhou Baiyun Airport as the research object,which is a representative airport under the operation of the parallel runway.Assume the end-around taxiway is available at the southern end of the RWY20 R,the node-line model with time delay restrain is established,and the airport operation limit is converted to a time delay to store into the database.In the optimization algorithm,the taxi operation region is divided into two parts:one is the taxi part of the inner runway lane,and the other is the taxi part between the inner runway and the stop position.This paper is obtained by partial optimization to achieve the whole optimization.The selection and crossing time of the contact taxiway have different effects on the taxiing efficiency and the runway capacity,so this paper establishes the contact taxiway selection optimization algorithm with zero delay of departure delay to provide the theoretical basis of the contact taxiway selection and crossing time point for the controller.In the improved ant colony algorithm,the minimum time delay is used as the constraint condition of the pheromone update,so that the output result is the shortest taxi time,and the time frame can be used to predict the conflict point and avoid the conflict according to the conflict solution scheme.The combination of the two algorithms forms the optimization algorithm based on the parallel runway taxi path.In order to realize the optimization algorithm,a large number of data of Baiyun Airportrunway crossing time are collected and analyzed.The normal distribution function and correlation coefficient of the runway crossing time of the same aircraft type are obtained by mathematical statistics,and both pass the Pearson fitting test.Finally,three group flights are selected for comparison and analysis,and the effectiveness of the algorithm is verified.