在考虑交通基础设空间网络布局特性基础上，利用2001—2011年中国省级数据和空间计量研究方法，从直接效应和空间外部效应两个层面研究了交通基础设施空间建设差异化对中国经济增长的影响。结果表明：中国交通基础设施在地理空间上已然形成了三类稳固的差异化集群；虽然交通基础设施建设对区域经济增长有着显著的正向效应，但是受其自身空间建设差异化对经济增长负向效应影响，其对经济增长应有的促进效应未能全部体现。虽然交通基础设施空间建设差异化存在显著的空间负外部效应，不过该效应正在逐年减弱。扩大交通基础设施覆盖面与提升交通基础设施存量两者对经济增长都有着相近的正向弹性，不过前者的实际操作成本要明显低于后者。%Based on spatial network features of transportation infrastructure,this paper studied the influence of traffic infrastructure which was spatial construction discrepancy on China's economic growth from direct effect and external spatial effect,with Chinese provincial data from 2001 to 201 1 and spatial econometrics model. Research shows that:transportation infrastructure has formed the three kinds difference of solid cluster in geographical space;transportation infrastructure has a significant positive effect on regional economic growth,but affected by the negative effect of the spatial differentiation construction,whose all the effect on economic growth didn’t be shown;although the spatial differentiation construction of transportation infrastructure had significant negative external effects,but the effect was reduced year by year;both expanding coverage or improving stock of transportation infrastructure had an approximate positive elasticity on economic growth,but the actual operation costs of the former are significantly lower than the latter.
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