A quantitative spatial methodology for delimiting historical centers - an application in Guarda, Portugal

IF 1.8 Q2 GEOGRAPHY
M. Soares, F. Fonseca, R. Ramos
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引用次数: 2

Abstract

A historical center can be defined as the oldest part of a city where a significant part of the building stock dates back to the early stages of urban growth. Historical centers often contain special urban fabrics with unique, historic, social and cultural identity. Owing to this, they have been subject to special urban planning interventions in order not only to protect the existing urban fabric and its originality, but also to revert depopulation and built deterioration processes aiming to make these old centers attractive and functional again. However, in the inter-urban domain, there is a deficit of spatial planning research, and the delimitation of historical centers is a topic that has been under explored. This paper describes a morphological approach for delimiting the historical center of Guarda, Portugal. Methodologically, the work uses building stock-age data from eight periods between <1919 to 2011 and is supported by both statistical and spatial analysis. Statistically, the urban evolution of the city was analyzed through threshold values and five novel building indexes. Spatially, the work involved disaggregated GIS analysis to map the evolution of built-up areas and to identify the consolidated urban areas. A sensitivity analysis was also performed to assess the influence of some parameters on the obtained boundary. Results indicated that the historical center of Guarda was consolidated in the 1960s and, since then, has been relatively unchanged. The obtained boundary shows a suitable spatial adjustment considering the consolidated urban area and the official boundary included in the Urban Rehabilitation Area. 
划定历史中心的定量空间方法——在葡萄牙瓜尔达的应用
历史中心可以被定义为城市最古老的部分,其中很大一部分建筑存量可以追溯到城市发展的早期阶段。历史中心往往包含具有独特历史、社会和文化特征的特殊城市结构。因此,它们受到了特殊的城市规划干预,不仅是为了保护现有的城市结构及其独创性,也是为了恢复人口减少和建筑退化的过程,目的是使这些旧中心重新具有吸引力和功能。然而,在城际领域,空间规划研究存在不足,历史中心的划界是一个探索不足的话题。本文介绍了一种形态学方法来界定葡萄牙瓜尔达的历史中心。从方法上讲,这项工作使用了1919年至2011年八个时期的建筑存量年龄数据,并得到了统计和空间分析的支持。从统计学上讲,通过阈值和五个新的建筑指标来分析城市的演变。在空间上,这项工作涉及分类的地理信息系统分析,以绘制建成区的演变图,并确定合并的城市区域。还进行了灵敏度分析,以评估一些参数对所获得边界的影响。结果表明,瓜尔达的历史中心在20世纪60年代得到了巩固,此后一直相对不变。所获得的边界显示了一个适当的空间调整,考虑到合并后的城市区域和城市复兴区内的官方边界。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
5.10
自引率
0.00%
发文量
5
审稿时长
9 weeks
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