| The implementation of the "Belt and Road" Initiative has added a strong touch to international cooperation and given new connotations to traditional connectivity.With its controllability of construction conditions,strong adaptability of navigation conditions and uniformity of cross-border transportation standards,public air transport has become a priority connectivity option for the interconnection process between China and the "Belt and Road" countries.This thesis aims to quantitatively evaluate the level of aviation connectivity between China and the "Belt and Road" countries,and give corresponding countermeasures and suggestions based on the shortcomings of aviation connectivity,in order to help the construction,smoothness and prosperity of the Air Silk Road.According to the connotation characteristics of aviation connectivity,this thesis constructs an aviation connectivity measurement index system from three dimensions: policy connectivity,operational connectivity and facility connectivity,selects the panel data of 148 "Belt and Road" countries from 2015 to 2019,distributes the index weight through the entropy weight method,and uses the comprehensive development level evaluation model to evaluate the aviation connectivity between China and the "Belt and Road" countries,as follows:(1)The natural break point grading method was used to divide the aviation connectivity between China and the "Belt and Road" countries into five categories,and Arc GIS software was used to visualize it.The results show that the spatial differences in the level of air connectivity between different "Belt and Road" countries and China are characterized by a "pyramid" type of unbalanced development,among which the countries with higher levels of air connectivity are mainly distributed in Southeast Asia,and the countries with lower levels are mainly distributed in Africa and the Americas.(2)The development trend of aviation connectivity between China and "Belt and Road" countries from 2015 to 2019 is divided into four categories: improvement,deterioration,no change,and no connection and no change,and Arc GIS software is used to analyze the spatial distribution of these four categories of "Belt and Road" countries.The results show that in terms of development degree,the "Belt and Road" countries with improved aviation connectivity with China are mainly distributed in Southeast Asia,the "Belt and Road" countries that have deteriorated are mainly distributed in Central Asia,East Asia and West Asia,and the "Belt and Road" countries that have not changed are mainly distributed in Africa and the Americas.(3)Synthesize the level and development trend of aviation connectivity of the "Belt and Road",and analyze the overall development degree of aviation connectivity between China and the "Belt and Road" countries.The results show that some "Belt and Road" countries in Africa and the Americas have not changed their aviation connectivity within five years,and are in a state of low or even no connectivity.Southeast Asia’s "Belt and Road" countries have improved their aviation connectivity and the level of connectivity is high,among which,although China,South Korea and Thailand have experienced negative growth in aviation connectivity,they still maintain high connectivity.(4)The influencing factors of aviation connectivity were analyzed through the gray correlation analysis model.The results show that the policy connectivity index under the firstlevel index has a greater impact on air connectivity,and the gray correlation degree ranking of the specific second-level indicators is: air transport agreement> air traffic right openness>number of round-trip flights> number of routes opened> operating airlines> connecting airports> connecting cities> airworthiness agreements.Therefore,when promoting aviation connectivity between China and "Belt and Road" countries,we should focus on improving policy connectivity to pragmatic cooperation between countries,strengthening air transport policy communication and openness,promoting aviation hardware and facility connectivity and cooperation,and improving the quality and supply of air transport services. |