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中文摘要：
定量分析了高速公路建设对陕西省经济社会发展的影响．采用SPSS15．0软件对1978—2007年陕西省社会经济统计数据进行相关分析，进而建立高速公路里程、低等级公里里程、旅客周转量、货物周转量与国内生产总值的多元线性回归模型．结果显示，高速公路建设对陕西省经济发展带动作用明显，产业结构在其影响下趋于合理；回归方程的建立表明高速公路里程对经济影响作用非常显著，对于带动当前经济发展具有现实意义．
英文摘要：
In this paper, the quantitative analysis of the expressway construction has been made on the impact of social and economic development in Shaanxi province. Using SPSS15.0 software, we extracted the correlations among statistical data ranging from 1978 to 2007 in Shaanxi province. Multiple linear regression model was built by expressway mileage, low-grade expressway mileage, passenger turnover, freight turnover with the gross domestic product. According to the analysis, the expressway construction promoted the development of economy and rationality of industrial structure in Shaanxi Province. The regression equation showed the expressway mileage＇ s impact on economic was significant, which was of practical significance to develop economy.
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