Study On The Impact Of High-Speed Railway On The Cities And Urban Structure Along The Line

The innovation and progress of transportation system is not only an important force to guide the production and living activities of human society and the change of travel mode,but also an important factor to promote urban economic development and urban structure renewal and even restructuring.Since the opening of high-speed railway,the development of China’s high-speed railway has become overwhelming.Its operating mileage has leapt to the top of the world,and it has built the world’s largest high-speed railway network and created a world-class brand of China’s high-speed railway.The development of high-speed railway plays an irreplaceable role in promoting the process of urbanization,and has a profound impact on the renewal and restructuring of urban structure.Therefore,based on the previous research at home and abroad,this paper combines RS and GIS theory and technology to extract and analyze the remote sensing data along the Shandong section of Beijing Shanghai high-speed railway and its cities.With the help of urban accessibility,land use model,spatiotemporal comparative analysis,spatial expansion intensity analysis and other methods,this paper analyzes the urban accessibility,land use types,urban functional space and population,The results are as follows:(1)The opening of high-speed railway has greatly shortened the space-time distance between cities.After the opening of high-speed railway,the average effective average travel time between the five cities along the line has changed from 107.99 to 33.04,and the shortest commuting time has been shortened by 70.42% compared with the same period last year.The accessibility of cities has been significantly improved,which has promoted the formation of one hour communication circle between cities along the high-speed railway in the eastern part of the mountain and accelerated the communication and circulation between cities To enhance the cohesion between the inner regions of the city.(2)The high-speed railway promotes the development of urban land use and guides its development direction.It gradually changes the surrounding land use structure dominated by cultivated land,and gradually develops towards diversification and diversity.The cultivated land area decreases year by year,but its reduction speed gradually slows down,and the construction land area shows a rapid growth trend.In addition,the impact of high-speed railway on urban land use is similar to that of cities,The lower the level,the greater the impact of high-speed rail,and the more obvious the change of land use types.(3)The urban functional space is also greatly impacted by the high-speed rail.The area of urban functional space has increased significantly,and the scope and scale of urban functional space has been expanding.The impact of high-speed rail on the scale of urban functional space is related to the city level.The high-speed rail has a greater impact on the evolution of the scale of urban functional space in medium-level cities.The higher or lower the city level is,the better the urban functional space is Space scale is less affected by high-speed rail.Green space is the type of functional space with the fastest expansion speed,and its status has gradually improved.Commercial space and service space have developed very rapidly,and have become one of the main functions of the city.On the whole,there is a weak distance attenuation effect in the evolution of urban functional space around high-speed rail,that is,with the increasing distance from highspeed rail stations,the impact of high-speed rail is declining.(4)The opening and operation of high-speed railway has a positive role in promoting the urban population structure and economic structure,From 2008 to 2018,the urban population showed a steady growth trend,and the urban economic structure showed a rapid growth trend,and both of them achieved a doubling growth trend.However,the impact of high-speed rail on the urban population structure and economic structure was different at different time points.The early opening of high-speed rail had a greater impact on the urban economic structure,while the late opening of high-speed rail had a greater impact on the urban population structure.(5)High speed railway mainly affects urban structure through two basic carriers of highspeed railway station and high-speed railway line,mainly affecting urban accessibility,land use,urban functional space,urban population and economy,thus affecting urban structure.However,there are differences in the degree of impact,such as the construction location of high-speed railway,the scale of the city and the high-speed railway hub The size of the scale is an important factor leading to differences in their impact.