An Integrated Optimization For Airport Aircraft Taxiing Routes And Standing Gates

With the construction of air power,the number of civil aviation airports and aircrafts in our country is increasing,the travel intensity of civil aviation passengers has been greatly improved,and civil aviation transportation has gradually become an important travel mode.Thus,it is important to ensure that the efficient and safe operation of the airport scene for it has carried huge passenger and cargo flow.Meanwhile,taxi routing and gate assignment,as a key segment of operation of airport surface,are of great significance for the optimization of airport operation strategies and the improvement of passenger satisfaction.Firstly,this paper analyzes the operation of aircraft at present,and then improves the optimization model of taxi routing and the integrated model of taxi routing and gate assignment on the basis of reviewing the existing research at home and abroad.With the help of MATLAB,a genetic algorithm is designed to solve these models above.Taking an airport in our country as an example,the optimization results of the two models are compared and analyzed to verify the effectiveness of the improved models.The main research can be shown as follows:(1)After analyzing the deficiency of the existing taxi routing optimization model,this paper makes the following improvements: 1)Add the fairness of delays among airlines.The variance between the average delay time of all delayed aircraft and the average delay time of all aircraft within the planned time is taken as the deviation of the delay time of one airline,to ensure that the delay deviation among airlines are minimal and the fairness of delay among airlines.2)Improve the priority design rules for two aircraft that may have conflicts.A three-dimensional priority table is designed to determine the priority of the aircraft,according to three attribute parameters,namely,operation property(arrive or departure),aircraft type,and whether it carries important flights(official flights or international flights).(2)After analyzing the deficiency of the existing integrated model of the taxi routing and gate assignment,this paper makes the following improvements: 1)Take the passengers as the main body of interest in the objective function,and comprehensively consider the cost of the taxiing time,motion time and waiting time of passengers.2)Restrict the rate of leaning on bridge for arriving passengers,and analyze the synergistic effect on taxi routing and gate assignment under the condition of higher passenger bridge access rate 3)Provide three sets of optional taxiing routes,{R1,R2,R3},for the OD pairs formed between the gate and the runway exit(entry),to coordinate of conflicts between departure and arriving aircrafts from two aspects of taxiing routes and gates.(3)With the help of MATLAB,a genetic algorithm is designed to solve these models.A domestic airport is taken as an example to compare the effect of the airport operation before and after improvement of models,to verify the validity and rationality of the two models.