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| ASSOCIATION ANALYSIS BETWEEN ROAD TRANSPORTATION AND ECONOMIC DEVELOPMENT IN NORTHERN SHAANXI IN THE TRANSITION PERIOD |
| XIE Jing, ZHANG Yang-sheng, LEI Fang, HUANG Zhuo |
| Department of Urban and Resource, Northwest University, Xi'an 710127, China |
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Abstract Transportation industry, which provide support and guarantee for regional ecomonic development. Researches on association analysis between road transportation and regional economic development attract economists and geographers greatly. This paper reviews current researches on the mutual influence of transportation and economy from different angles both at home and abroad. Then it makes a brief introduction of road transportation and economy in northern Shaanxi, and makes a comprehensive analysis though the principal component analysis, association analysis, regression analysis and elastic analysis. The authors set up subsystems of road transportation development indicators and regional economy development indicators. Through the principal component analysis, original indexes are replaced by road transportation development index and regional economic development index, which are made of linear-weighted new principal components. To determine the degree of linear correlation between road transportation and regional economy in northern Shaanxi, the authors carry out correlation analysis. The result shows that correlation coefficient reaches 0.875, indicating a high correlation between the two development indexes. Correlation analysis is followed by regression analysis. Regression analysis is applied to 11 possible curve models, among which the logistic curve model reveals the highest fitting degree. Then the relation model between road transportation and regional economic development in northern Shaanxi is built up. Furthermore, to measure the sensitivity of the changes in the two indexes, flexible coefficient analysis is conducted. The average coefficient of elasticity of road transportation to economic development varies from 0.42 to 0.58 which can show the trend of coordination development. Finally, the authors suggest that the local government and community should actively conduct road construction in the less developed region, optimize the road network structure, and establish a highly efficient integrated transportation system.
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Received: 02 June 2009
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2010, Vol. 25 
