Abstract:

Coordination means relationship of elements within and outside the system. Since German physicist Hermann Hake raised Synergetic in 1971, coordination has gradually become an important research content of disciplines at home and abroad, such as economic geography, urban and rural planning, transportation geography, and so on. Transportation facilities as the link to contact geospatial and economic and social activities, change travel time, transportation distance and transportation costs，and cause change of the relative distance between each other, which provide protection of material, personnel, technology, information, capital and other elements of resources for the city, so the coordination of economic and social largely affect the potential for sustainable development of the city. How to evaluate the regional transportation infrastructure advantages and disadvantages, as well as the economic and social effects are always the main contents and hotspot issues of many disciplines. Sixtynine spatial units of Zhejiang Province are the research object in this paper. Based on the road network and the economic and social data of 1996, 2004, 2012, we used weighted average travel time indicators, principal component analysis and coupling coordination degree model, to explore the coordinated relationship of the city comprehensive accessibility and socioeconomic conditions. The study results showed as follows. (1) The accessibility of a comprehensive transportation network to node cities and urban economic and social development level was improved to various degrees from 1996 to 2012, and caused both coupling coordination relationship gradually shift from low level to high level. (2) Coordination presented spatial differentiation, coordination of city in Hangzhou Bay, JinLiQu plains and WenTai plains were significantly higher than that of the hilly areas of the western city, and coordination of prefecturelevel city area was generally higher than countylevel cities. (3) Spatial pattern of coordination evolved significantly, the improvement showed a gradient from northeast to southwest, from the center of the city to the surrounding county cities, and also exhibited significant feature of enhancement by coordinationbygrade type. In fact, the accessibility evolution of Zhejiang Province, and relate with economic and social development, reflects the result of the regional economic and social development and the transportation infrastructure improvement