Research On The Coordinated Development Of Expressway Layout And Urban Space Based On Urbanization

As a subsystem of urbanization,expressway is closely related to social development,Its planning and construction will be related to the potential and direction of urban development along the expressway.Because of the acceleration of the urbanization process and the expansion of the urban space,some large and medium-sized cities appear the phenomenon that the expressway is surrounded by the city,which has become a hindrance to the development of urbanization.In view of the present situation,it is vital important to integrate the relationship between them and choose a coordinated and sustainable development plan of expressway layout in the process of expressway construction and regional urbanized development.In order to ensure the layout of expressway construction not only cooperate with urban economy,population in quality,quantity,structure and development of timing and other aspects of mutual cooperation,but also can create favorable conditions for the urbanization process.So the layout of expressway need to start from the theoretical exploration and combine with the actual situation of local urban development which has obtained progress in spatial development strategy selection,organization management system and operation mode that promote the coordinated development of expressway and urbanization process.This paper will aim at analyzing and solving the problems between the layout of the expressway and the development of urbanization from three aspects.First of all,through the establishment of the potential developing index.the decision-making indicators of urbanization are quantified and indexed based on ArcGIS,and the urban spatial planning is analyzed and predicted;Secondly,according to the coupling coordination degree theory in physics,this paper will construct a composite system of " Urbanization-Expressway " to analyze the status of the Beijing-Tianjin-Hebei region city and expressway development.Combined with artificial neural feedback network model,the development trend of BeijingTianjin-Hebei areas is obtained;The study found that the process of urbanization in Beijing-Tianjin-Hebei region will become faster in the future,It is urgent to carry out the urbanization of existing expressways;On the basis of existing expressway traffic capacity calculation method of parameter optimization and verification.Finally,combining the "Four Stages Forecast Method" to analyze and forecast the Beijing-Tianjin-Tang expressway capacity,and puts forward the corresponding reconstruction layout scheme of expressway reconstruction.which will provide decision-making basis for the future coordinated development of the expressway and urbanization.