FUZZY COMPREHENSIVE EVALUATION OF DIFFERENCES IN URBANIZATION LEVELS——A Case Study of Lintong District,Xi'an
FUZZY COMPREHENSIVE EVALUATION OF DIFFERENCES IN URBANIZATION LEVELS——A Case Study of Lintong District,Xi'an
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发表时间：
2008
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通讯作者：
Cai Yun-long
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作者：
Cai Yun-long
单一的城市化人口指标不能准确反映小城镇城市化水平的差异，本文提出了一种更全面的城市化评价方法，即用两个指标来评价小城镇的城市化水平。该方法利用统计数据对临潼区城镇化水平进行了综合评价，并对临潼区城镇化水平进行了评价，结果表明，临潼区城镇化水平的综合评价是一个相对独立的评价过程在两个细节层面上。基础层使用人口、生产总值、工业发展和交通基础设施等数据作为城市化水平的指标。这种组合比单一的城市化人口比率提供了更稳健的城市化差异评估。每个基础指标可以进一步划分为相关的二级指标，以更全面地衡量城市化水平：1）人口指标可细分为各城镇的非农业人口和人口密度数字，再对这些二级指标采用综合评价法，计算出总体人口指标值。2）产值指标反映的是各乡镇的生产产值，该指标又可细分为工业产值和工农业产值比;这些子指标中的每一个都可以被进一步标准化和分类。使用这些次级指标值，综合评价方法可用于计算总产值。产业发展指数代表产业和企业的布局情况，可以从以下二级指数计算得出：规模以上企业分布，工业园区情况，4）交通基础设施指数是衡量各节点可达性的指标，可通过考察铁路、公路、省道、根据上述4个指标和综合评价方法，计算出临潼区城镇化水平，结果表明，临潼区城镇化水平可分为以下几类：城市化核心区、中心镇、重点镇、一般镇，该评价方法对临潼区城镇体系规划具有一定的参考价值。
A single urbanized population index does not accurately represent the differences in urbanization levels of small towns.This paper seeks to suggest a more comprehensive urbanization evaluation method that uses instead a two-level indicator variable system.This method of fuzzy comprehensive evaluation utilizes the summarized statistical data to compare and analyze the different levels of urbanization in towns of Lintong district.This process of comprehensive evaluation relies on two layers of detail.The base layer uses data on population,production value,industrial development,and transportation infrastructure as indicators of urbanization level.This combination provides a much more robust evaluation of urbanization differences than the single urbanized population ratio.Each of these base indexes can be further divided into related secondary indicators to give a more comprehensive measure of urbanization level:1)The population index can be subdivided into non-agricultural population and density of population figures for each town.The comprehensive evaluation method can then be applied to these secondary indicators and an overall population index value can be calculated.2)The production value index reflects the production output values in each town.This indicator can be subdivided into industrial output and the ration of agricultural output to industrial output;each of these sub-indicators can be further normalized and classified.Using these secondary indicator values,the comprehensive evaluation method can be applied to calculate an overall production value.3)The industrial development index represents the layout of industries and enterprises.It can be calculated from the following secondary indexes:distribution of enterprises above a designated size,situation of industrial parks,and distribution of high-tech and new-tech enterprises.4)The transportation infrastructure index is a measure of the accessibility of each node.It can be calculated by examining the number of railways,highways,provincial roads,county roads and rural roads in a given region.The four above-mentioned indexes and the comprehensive evaluation method can be used to calculate the different urbanization levels present in Lintong district.The results show that towns in Lintong district can be assigned to one of the following classifications:core urbanized area,centrally-located town,important town,general town.This method of evaluation will contribute to the urban system planning in Lintong district.