Study On Implementation Of PBN Procedures On Airport Aviation Noise Impact

With the rapid development of civil aviation industry in China,the problem of airport aviation noise becomes more and more acute.Some airports had be sued and even had to consider relocation due to noise nuisance.In recent years,according to the requirements of the international civil aviation organization,PBN procedures had been energetically promoted in China's civil aviation airport.The implementation of PBN procedures brings new opportunities to the airport noise.The influence of PBN procedures on airport aviation noise is analyzed systematically,which has great practical significance and research value to deal with the challenges of airport noise for our country in the future.Firstly,this paper studied evaluation index and noise evaluation methods of the airport noise,and screened out the scientific and reasonable evaluation index of airport noise,then gived the typical aircraft flight profile and average flight path,which lays the foundation for assessing the noise impact of PBN implementation;Secondly,the noise influence characteristics of Y departure in PBN procedures that widely used in multi runway airport,the comparison of the noise effects in PBN procedures departure and the departure of traditional flight procedures,the advantages of the PBN procedures in terms of avoiding noise sensitive points had all been studied in detail and analyzed with cases.Third,the paper gives the method to process tracks of RNP AR approach and conventional instrument approach,then analyzes and compares the influence difference of the above two kinds of noise.A case study is carried out on the basis of Guangzhou Baiyun Airport,and the differences between the two procedures in the area and geometry of the noise influence area are compared in detail.Finally,the paper analyzes the difference of descent profile between the CDO descent and the conventional descent procedure,then optimizes the descent profile of CDO descent in order to reduce the noise and gives the calculation and analysis of the optimized noise reduction effect.