| Transportation is an important embodiment and carrier of the six elements of tourism.In the process of tourism development,tourism transportation has always been an important image factor,and the reform of transportation mode will lead to the reform of tourism development.Economic development expedites the emergence of high iron economy,the emergence of high-speed train greatly shorten the distance between the two,to improve the regional traffic accessibility,but also bring tourism elements and the change of the tourist economy on the space development,geographic distance between cities,strengthened economic ties,also brings the transformation of regional tourism economy.This study takes the "flow space" effect of high-speed rail tourism,tourism attraction,and spatial remolding of tourism economy as the main concepts,and adopts the accessibility theory,growth pole theory,"core-edge" theory,"point-axis" theory,etc,combined with the domestic and foreign tourist traffic,especially the high-speed rail research on tourism economic impact,selecting 15 cities in the Beibu Gulf City Group as the study area.With 2010 and 2019 respectively as the time sections before and after the opening of high-speed railway,ARCGIS software is used to apply accessibility model,GAM model,tourism economic connection intensity model and tourism economic connection membership model,etc,based on the quantitative analysis of the tourism traffic accessibility and the change of tourism economic connection of 15 cities in the Beibu Gulf City Group before and after the opening of high-speed rail,the paper explores the traffic and tourism economic situation in the Beibu Gulf City Group under the influence of high-speed rail,and then puts forward the countermeasures for the coordinated development of tourism industry in the Beibu Gulf City Group under the background of high-speed rail network.The results show that:First,after the operation of high-speed rail,the tourism accessibility of cities in the Beibu Gulf City Group has been significantly improved,the accessibility of tourist traffic has been greatly enhanced,and the "hourly economic circle" has been expanded.The tourism economic potential of all cities has changed to different degrees before and after the opening of high-speed railway.The inter-provincial urban effect is relatively obvious,and the inter-provincial traffic accessibility has regional characteristics.Second,Beibu Gulf City Group tourism economic attraction of the cities in high-speed opening is increased significantly,to enhance regional tourism economic ties,tourism elements also get fast flow between the city,urban agglomeration effect and diffusion effect increased,especially in the central city,compared with the degree of economic ties between provinces and autonomous regions,provinces and regions within the links between more closely.Thirdly,after the operation of high-speed railway,the intensity,total amount and membership degree of tourism economic connection in the Beibu Gulf City Group have been greatly improved.From the perspective of space,the tourism economic connection has not changed much,but its balance has been greatly improved,and the degree of tourism economic connection between provinces and regions still needs to be improved.Finally,according to the results of the analysis,combined with the actual situation,in order to realize the beibu gulf tourism industry cluster development and balanced development of urban agglomerations for the purpose,some suggestions and development countermeasures,in order to improve the scientific nature and effectiveness of regional urban tourism economy development. |