Automated delimitation of urban areas comprising small-sized towns – Comparison of two methodologies applied to mainland Portugal
Automated delimitation of urban areas comprising small-sized towns – Comparison of two methodologies applied to mainland Portugal
复制标题
自动划定由小城镇组成的城市地区 - 葡萄牙大陆适用的两种方法的比较
DOI：
10.1177/0265813516668856
复制
发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Cristina Cavaco
中科院分区：
文献类型：
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作者：
R. Nicolau;Cristina Cavaco
在欧洲一级，用于城市地区分类的不同方法依赖于1平方公里网格单元的人口空间分配，因此未能确定在主要由小城镇组成的城市系统中发挥重要作用的小型住区，例如葡萄牙。本文报告了替代方法的发展，这些方法克服了上述问题，成功地实现了小型城市住区的自动识别和划界-这是这项工作的主要目标。两种可供选择的方法（A和B）被开发出来，后来进行了比较。A确定的定居点是人口普查区集群，以前使用作者提出的城乡类型学进行分类。在B中，采用了欧洲环境署出版的城市形态区方法，其中住区是特定土地利用/土地覆盖类别的集群，与市政总体规划定义的城市化地区相结合。
At European level, the different methodologies used for the classification of urban areas rely on the spatial allocation of population to 1 km2 grid cells, failing therefore to identify small-sized settlements that play an important role in urban systems mostly composed by small towns, such as the Portuguese. This paper reports the development of alternative methodologies which overcome the problem stated, successfully enabling the automated recognition and delimitation of small-sized urban settlements – the prime goal of this work. Two alternative methodologies (A and B) were developed and later compared. The settlements identified by A are clusters of census tracts, previously classified using an urban–rural typology proposed by the authors. In B an adaptation of the Urban Morphological Zones methodology published by the European Environment Agency was used, whereby settlements are clusters of specific Land Use/Land Cover classes combined with the urbanised areas defined by Municipal Master Plans.