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| A STUDY ON ACCESSIBILITY OF TRANSPORTATION INFRASTRUCTURE IN URBAN AND RURAL AREA OF XUZHOU BASED ON GIS |
| LI Bao-jie1,2, GU He-he1, JI Ya-zhou1,2 |
1. China University of Mining and Technology, Jiangsu Key Laboratory of Resources and Environmental Information Engineering, Xuzhou 221116, China;
2. College of Urban & Environmental Science, Jiangsu Normal University, Xuzhou 221116, China |
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Abstract In this study, the spatial form, spatial distribution, distance relation and time relation of the traffic network in urban and rural areas of Xuzhou were analyzed with GIS spatial analysis though 5 indices including length-radius dimension, dendrite-radius dimension, distance accessibility, time accessibility and accessibility factor, which are from Xuzhou's traffic network data. The results indicate that the length-radius dimension is spatial differentiation significantly; the density of traffic network in Xuzhou urban and surrounding area is the largest, and followed by the eastern counties. The value in the northwest counties is the minimum. The value of length-radius dimension in Xuzhou urban district is 1.49, the one of counties in the east is around 1, while the values of Feng County and Pei County are both less than 1, and the distribution of dendrite-radius dimension basically identical with the length-radius dimension. The time and distance accessibility of each node increases with the distance from Xuzhou urban. The nodes whose accessibility are greater than the average level of the region are Xuzhou urban node (including Quanshan borough, Gulou borough, Yun long borough, Tongshan borough, and Jiawang borough nodes), the nodes whose accessibility are close to the average level are Pizhou City, Pei County, and Suining node, while the accessibility of Feng County and Xinyi node are lower than the average level. The study of transport accessibility shows that the accessibility of Xuzhou urban and rural area is uneven. Therefore, Local authorities of Xuzhou should give the first priority to improving the balance of regional transport accessibility, especially the Northwestern region in order to promote the balance economic development.
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Received: 21 September 2011
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2012, Vol. 27 
