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

The civil aviation transportation industry has a great of development,the number of take off aircrafts and land aircrafts become ever growing at the parallel runway of airports,the delay of airport and the number of runway incursions has been added subsequently,although expand the airport can solve it in a short time,improve the operational efficiency of the airport effectively,because the period of construct the new airport is too long,and the investment is huge,so how to improve the operational of airport efficiency based on the existing airport layout and the safety of the airport,the taxi path optimization is the valid solution.The main contents are as follows:1.Considering the influence of aircraft speed change on taxiing time and taxiing fuel consumption,and study the optimization of aircraft global taxiing path.Firstly,the motion model of the aircraft was established by Newton’s law formula.The discretization method was used to simplify the motion process of the aircraft.It is divided into different motion stages such as acceleration,uniform and deceleration.Considering the difference of aircraft models,the calculation consumes the fuel consumed by the aircraft’s different motion stages,and then combined the constraints of the aircraft’s taxi speed during taxiing to establish a taxi path optimization model.Finally,the algorithm based on Dijkstra algorithm was used to solve the model and obtain the aircraft’s optimal taxi path.2.Considering the selection of the runway exit when the landing aircraft left the runway,and optimized the overall taxiing path of the aircraft.Firstly,the motion process of the landing aircraft was analyzed.The aircraft landing motion formula was used to establish the optimization model of the aircraft departure runway time.Secondly,the optimal algorithm was based on the difference between the landing aircraft and the deceleration performance.and obtained the optimal position and the time of break away form runway.Finally,The global taxi path model was solved by an optimization algorithm based on Wolf pack algorithm.3.Considering the influence of the End-around taxiway on the aircraft taxiing strategy,and then study the optimization of global taxiway at the airport with the End-around taxiway.Firstly,combined with the research content of the second part,the optimal time for the aircraftto leave the runway was determined,and the optimal time point for crossing the runway was determined.Secondly,the operation mode of the End-around taxiway was used as the constraint condition to establish the taxi path optimization model.Finally the improvement was adopted.The improved genetic algorithm was used to solve the model.