Research On The Site Selection Of High Plateau Transport Airport

In recent years,with the promotion of the "western development strategy" and the implementation of the "14th Five-Year Plan for Civil Aviation",it is urgent to improve the layout of airports in the western high plateau areas and border areas.On the one hand,civil airports can solve the travel difficulties of people in high and plateau areas.On the other hand,high and plateau areas enjoy a high strategic position as the "roof of the world" and the "commanding heights of Asia".Therefore,from the two aspects of "convenience" and "stability",in the next few years,the high plateau area is bound to usher in a wave of airport construction tide.As the first step of airport construction,airport site selection has an obvious influence on the follow-up work.Therefore,this thesis takes the high plateau airport site selection as the research object,and establishes a set of index system and evaluation method for the high plateau airport site selection.In this thesis,by literature research method,questionnaire survey method,AHP,entropy weight and CRITIC combination weight method,improved fuzzy matter element analysis method and other methods,the evaluation system of high-altitude airport site selection is established,and verified by examples.First of all,the research status of high-altitude airport and civil airport site selection at home and abroad is reviewed,the shortcomings of existing research are analyzed,and the characteristics of high-altitude airport and relevant regulations of airport site selection procedures are sorted out as the research basis.Secondly,based on the relevant regulations and principles of airport site selection,combined with the characteristics of high plateau region,the specificity of high plateau airport site selection is analyzed,and a high plateau airport site selection evaluation index system with5 dimensions and 16 indexes is summarized and established.The weight of indicator adopts the method of AHP,entropy weight and CRITIC combination weight,and introduces CRITIC method into the original AHP-entropy weight method,which eliminates the influence of too strong correlation of some indicators,so a more scientific and reasonable weight of indicator can be obtained.Finally,the basic principles,calculation steps,advantages and disadvantages of fuzzy matter-element analysis are studied deeply.At the same time,in order to reflect and reduce the uncertainty of experts in decision making,this thesis introduces the expert group decision theory,and improves the calculation method of fuzzy value in the fuzzy matter-element model:(1)The expert decision result is expressed probabilistic,and the expert confidence is calculated by using the principle of information entropy;(2)Grey correlation analysis was used to calculate the degree of consensus between one expert and other experts;(3)According to the expert confidence and consensus,the expert reliability is calculated by multiplication synthesis principle,and the fuzzy value in the fuzzy matter-element model is modified.This improvement replaces the fuzzy sum average algorithm in the original model and greatly reduces the uncertainty of experts in the decision-making process.In addition,this thesis uses the Europeanstyle schedule principle to combine the index weight with the improved fuzzy matter-element model,so as to determine the ranking of the pros and disadvantages of the site selection scheme.Finally,a high plateau airport in southwest China is taken as an example to verify the results.The results show that the evaluation model proposed in this thesis is effective and reasonable.