Measuring spatial - temporal of Yazd urban form using spatial metrics

Abstract Urban form can be affected by diverse factors in different times. Socio- economic, political and physical factors are among the main contributors. So, one of the most important challenges of urban planners is measuring and identifying urban development pattern in order to direct and streng...

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Main Author: saeed zanganeh
Format: Article
Language:fas
Published: Kharazmi University 2015-04-01
Series:تحقیقات کاربردی علوم جغرافیایی
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Online Access:http://jgs.khu.ac.ir/article-1-2617-en.pdf
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author saeed zanganeh
author_facet saeed zanganeh
author_sort saeed zanganeh
collection DOAJ
description Abstract Urban form can be affected by diverse factors in different times. Socio- economic, political and physical factors are among the main contributors. So, one of the most important challenges of urban planners is measuring and identifying urban development pattern in order to direct and strengthen it to sustainable pattern and right direction. The case study of the present paper is the city of Yazd, a middle-sized city in the center of Iran, and the studied years are 1975, 1987, 2000 and 2010. To achieve the main objective of the paper, measuring Yazd growth and expansion by spatial metrics, it has used remote sensing data and satellite imageries and ArcGIS software. The conclusion revealed that in four periods of study, complexity or irregularity of the urban patch shapes has increased, centrality or average distance of the dispersed parts to the city center has decreased, compactness or the number and area of patches their distance from each other has decreased, porosity or ratio of open space has increased and finally population density of city has decreased in a large amount. Therefore, all perimeters show that the temporal - spatial form of Yazd has moved from compact to sprawl. Due to many undesired impacts of urban sprawl, urban planners and authorities are required to use adherent techniques and policies to control urban sprawl and to direct it toward more sustainable directions.
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series تحقیقات کاربردی علوم جغرافیایی
spelling doaj-art-da29aa139ec64293ad42598a4672be0c2025-01-31T17:22:39ZfasKharazmi Universityتحقیقات کاربردی علوم جغرافیایی2228-77362588-51382015-04-011538730Measuring spatial - temporal of Yazd urban form using spatial metricssaeed zanganeh0 Abstract Urban form can be affected by diverse factors in different times. Socio- economic, political and physical factors are among the main contributors. So, one of the most important challenges of urban planners is measuring and identifying urban development pattern in order to direct and strengthen it to sustainable pattern and right direction. The case study of the present paper is the city of Yazd, a middle-sized city in the center of Iran, and the studied years are 1975, 1987, 2000 and 2010. To achieve the main objective of the paper, measuring Yazd growth and expansion by spatial metrics, it has used remote sensing data and satellite imageries and ArcGIS software. The conclusion revealed that in four periods of study, complexity or irregularity of the urban patch shapes has increased, centrality or average distance of the dispersed parts to the city center has decreased, compactness or the number and area of patches their distance from each other has decreased, porosity or ratio of open space has increased and finally population density of city has decreased in a large amount. Therefore, all perimeters show that the temporal - spatial form of Yazd has moved from compact to sprawl. Due to many undesired impacts of urban sprawl, urban planners and authorities are required to use adherent techniques and policies to control urban sprawl and to direct it toward more sustainable directions.http://jgs.khu.ac.ir/article-1-2617-en.pdfurban formurban sprawlcompact cityspatial metricsyazd.
spellingShingle saeed zanganeh
Measuring spatial - temporal of Yazd urban form using spatial metrics
تحقیقات کاربردی علوم جغرافیایی
urban form
urban sprawl
compact city
spatial metrics
yazd.
title Measuring spatial - temporal of Yazd urban form using spatial metrics
title_full Measuring spatial - temporal of Yazd urban form using spatial metrics
title_fullStr Measuring spatial - temporal of Yazd urban form using spatial metrics
title_full_unstemmed Measuring spatial - temporal of Yazd urban form using spatial metrics
title_short Measuring spatial - temporal of Yazd urban form using spatial metrics
title_sort measuring spatial temporal of yazd urban form using spatial metrics
topic urban form
urban sprawl
compact city
spatial metrics
yazd.
url http://jgs.khu.ac.ir/article-1-2617-en.pdf
work_keys_str_mv AT saeedzanganeh measuringspatialtemporalofyazdurbanformusingspatialmetrics