基于交流外部性的行为主体城市聚集空间结构分析

The City Accumulation Spatial Structure Analysis of Behavioral Agent Based on Exterior Exchange

因行为人寻求空间上交流的需求形成一种聚集的向心力,从而产生在一定区域内其分布状态表现出了单峰分布现状。但是在处于社会中的行为人是以城市为中心进行分布,使行为人聚集的空间结构产生了不同程度的变化。文章综述了行为主体(个人和企业)在交流情况下产生聚集的国内外研究现状,探讨了个人之间聚集社会外部性产生的前提条件,通过数学模型分析个人聚集得出了个人聚集分布的最优结论;通过对企业交流情况下聚集形成中央商务区的均衡分布状况,得出了企业在中央商务区为钟型分布,并且利用信息的传播界限可解释中央商务区的形成的结论,同时也说明了在信息传递条件下写字楼的高度随着距中央商务区距离远近而发生变化的结果。

It formats an aggregation centripetal force because of behavior agent seeking space foe the exchange of demand, which shows a single peak distribution within the region. However the behavior agent in a society bases on the distribution of cities as centers, so that the spatial structure has varying degrees of change. The article summarized the behavioral agent＇s （individual and enterprise） accumulation of the exchange in domestic and foreign research. Then it discusses the Precondition of individual gather in society externalities, and analyzes the central business district＇s balanced distribution situation of individual accumulation and enterprise exchange situation by the mathematical model. Finally the paper gets the conclusion that individual accumulation most superior distribution and the clock distribution of the enterprise in central business district, and also gets the result that the office building＇s height is changes along with way to the central business district.