Research On Simulation Optimization Of Airport Gate Assignment

In recent years,with the rapid economic development,the number of flights operating at the airport has increased rapidly.This makes the problem of airport ground operation efficiency increasingly prominent.As an important part of airport ground operations,gate assignment is one of the main factors affecting operational efficiency.Therefore,gate assignment has been analyzed and discussed,and obtained a reasonable result through simulation optimization method to improve the efficiency of airport surface operation.Gate assignment problem has been discussed from two levels of gate pre-assignment and gate re-assignment.And the usage scenarios and operating characteristics of the assignment problem has been analyzed.And optimization models for the key factors of the assignment problem has been Established.Finally,high degree of simulation and wide application range simulation tool and fast search speed heuristic algorithm are combined to solve gate assignment problem.Used TAAM(Total Airspace and Airport Modeller)simulation tool to established an airport ground simulation optimization platform based on the ground operation data of Lanzhou Airport.In order to improve the efficiency of the simulation operation of the simulation model,analyzed the airport surface short-time delay and determined characteristic parameters.Through this to ensured the efficient operation of the simulation scene and provided an efficient simulation running environment for the gate assignment problem.From the perspective of balancing the benefits of passengers,airports and airlines,a multiobjective model based on the optimization goals of passenger walking time,gate occupancy time balance,and the fairness of airline taxiing time was constructed.Use the objective method entropy weight method to determined the weight coefficient.Finally,tabu search algorithm and simulation optimization platform were used to jointly solve.The results show that the gate preassignment model could effectively optimize gate operation,and improved the efficiency of airport ground operations on the basis of reducing time execution deviation of gate operation.From the perspective of passenger satisfaction,built a gate re-assignment model with the goal of time loss caused by changes gate positions on delayed flights.And improved tabu search algorithm and the simulation optimization platform were used to solve the problem.In order to improve accuracy,the calculation of the proportion of delayed flight passengers that have arrived at the gate and those who have not arrived has been added to the model.The results showed that this model can effectively reduce the time loss of passengers on delayed flights.And realized the rapid optimization of the gate re-assignment of delayed flights.