区位机遇是指通过优化空间关系,促进区位优势转化为经济优势的各种机会。它具有明显时空差异性,是激活区位优势的强大引擎。文中采用2005年长三角城市的经济总量、非农业人口、二、三产业比重、外资总额、地区经济强度等5个指标,运用数学模型,计算出16个城市的综合规模指数。据此,将长三角16个城市分成3个层次,并分析了各个层次的区位机遇。最后,文中以高速公路时代和跨海大桥时代为实证研究,辅以湖州、舟山、南通为例作翔实的分析,进一步证实区位机遇对区域经济发展的巨大作用。

Locational opportunity is all kinds of opportunities that can optimize the spatial relations and promote regional advantages into economic advantages. It is a powerful engine to activate regional advantages, and it has obvious differences in time and space. The paper adopts five indicators of 16 cities in the Yangtze River Delta in 2005, such as economic output, the non-agricultural population, the proportion of the secondary and tertiary industries, the total foreign investment, strengths of regional economy and so on, use a mathematical model to calculate size of 16 cities' comprehensive index. Accordingly, the paper divids 16 cities in the Yangtze River Delta into three levels, and analyzs Locationac opportunity of each level. Shanghai which is at the first level, has experienced the era of the Huangpu River to the age of Yangtze River and has stridder forward the era of regional maritime. If we have a good grasp of opportunities of the next cycle of regional integration into the world economy,we can achieve objectives to construct Shanghai into an in ternational economic, financial, and trade center.The key Location opportunity of the second level is to link up with Shanghai and use superior economic resources of Shanghai. Cities on the third level have small-scale economy, which can find opportunities from bottlenecks that affect space resources' act. Finally, the paper use the era of freeway and huge bridge as empirical research to further confirm that Locational opportunity plays an imporfant role in regional economic development, which is supplemented by detailed analysis of Huzhou, Zhoushan, and Nantong.