The Impact of Highway on the Structure Evolution of Urban Agglomeration——A Case of Urban Aglomeration of Shandong Peninsula

Transportation is just like the artery for regional development,it is also the basic fundation for the development of agglomeration.As the modern transportation,highway network in China generates an increasingly profound and long-term effect to the evolution of spatial structure of urban agglomeration.Taking urban agglomeration of Shandong Peninsula as an example,combining of qualitative and quantitative analysis,the impact of highway on urban agglomeration is strudied,including the urban agglomeration architecture,spatial structure and functions of the structure.Highway promotes the evolution of urban agglomeration system structure,and leads to the formation of a new model of urban spatial expansion named the merger and reorganization.By reducing the time distance among various cities,highway also promotes the rationalization of space layout in urban agglomerations which makes the mutual influence in urban agglomeration more profound.Because the intensity of the urban flow is greatly strengthened and the gravitation among cities increases,the space deprive effect aroused by that makes the constant change of the control border among the cities.Lastly,highway is becoming the important factor for the change of functional structure of urban cluster.In period of industrialization,the flow of fund,people and material is becoming increasingly strengthened by the quick channel of highway,and then urban agglomeration of Shandong Peninsula is gradually integrated into an organic system as a whole.