The Study about Measuring of the Relationship between Transportation Accessibility and the Level of Economic Growth and Spatial Structure at County Level
构建中心城区区位指数、县域公路联系度和开放可达性指标，分析济南都市圈34个县级市综合交通可达性与经济增长水平的关系，发现11种组合类型，多数为协调型，低可达性低经济水平县域最多且主要分布在泰安、聊城、滨州。
The relationship between transportation infrastructure construction and economic growth has become a research hot spot at home and abroad,build center city location index,county road links degree and opening accessibility,analyze the characteristics of spatial structure of the relationship between comprehensive transportation accessibility and the level of economic growth about Jinan metropolitan area 34 county-level cities,and build the 11 kinds of combination of the two types.We find those conclusion:(1) the traffic accessibility have large regional differences,the number of lowest reachability and higher reachability is most,the economic development have smaller regional differences,the number of the lowest economic level and lower economic level is most;(2) Combination types include 11 types which are maily identified as coordination type;(3) The types counties of most lowest traffic accessibility and lowest level economic development is most,primarily locate in Taian,Liaocheng,Binzhou City.The study about to the relationship between comprehensive transportation accessibility and the level of economic growth will help to realize high level of coordination between transportation and regional economic development.