基于道路和城镇的区位优势度分析

区位优势度是反映区域经济、社会发展现状和潜力的重要指标。从影响区域经济与社会发展的主要因素道路与城镇出发，进行区位优势度理论与方法研究。确定交通网络密度、交通干线影响度、城镇影响度为区位优势度研究的基本指标；根据交通和城镇对区域社会经济影响的方式，基于网格的思想，建立了交通网络密度、交通干线影响度、城镇影响度模型及平方根法的区位优势度模型；利用GIS和网格技术实现了区位优势度各模型的计算。以泽州县全域为研究对象，应用所建立的模型与采用的技术方法进行验证性分析，其结果与泽州当地实际情况吻合较好，表明所建立的模型与技术方法是合理性可行的。

Analysis on the Location Advantage Value Based on Roads and Towns

The location advantage value is an important index to indicate current and potential regional economy and social development situation. Based on roads and towns which are primary influence factors toward the regional economy and social development, this paper studies the theory and method of the location advantage value. This paper identified the density of the traffic net, influence value of traffic trunk and town as the fundamental index. According to the influence of the traffic and towns toward the social development, this study sets up the traffic net density value, traffic trunk and town influence value model and model of the location advantage value with the square root method. This study realizes the calculation of every location advantage value model with the GIS and grid technique. Setting the Zezhou County as the object, this study applies location advantage value models and technique adopted to conduct an analysis of the verification. The result is coupled with the practical condition fairly, which indicates that these models and technique are applicable.