浙江省陆路交通可达性与经济社会协调性研究

以浙江省69个县（市）为研究对象，利用1996、2004、2012年交通路网和经济社会数据，采用加权平均旅行时间指标、主成分分析法和耦合协调度模型，探讨城市综合交通可达性时空演变及其与经济社会耦合协调发展关系。研究结果表明：（1）1996~2012年，城市综合交通可达性以及经济社会发展水平均出现不同程度提高，两者耦合协调关系逐渐由低水平向高水平转变；（2）协调性存在空间分异，环杭州湾、金丽衢平原、温台平原城市协调性普遍高于西部低山丘陵地区城市，地级市辖区协调性普遍高于各县(县级市)；（3）协调性空间格局演变显著，呈现出由东北向西南、中心城市向周围县域梯度改善现象，且逐等级类型提升特征显著。总体上来看，浙江省城市可达性演变及与经济社会的耦合协调关系，体现了区域经济社会发展以及交通基础设施完善的结果

ANALYZING THE RELATIONSHIP BETWEEN ACCESSIBILITY OF LAND TRANSPORT AND SOCIAL ECONOMY IN ZHEJIANG PROVINCE

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