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Quantitative Analysis of Structural Changes during Rapid Urban Growth: Case Study of Kerman, Iran
| 题名： | Quantitative Analysis of Structural Changes during Rapid Urban Growth: Case Study of Kerman, Iran |
| 其他题名： | Aoyama,H.,Fujiwara,Y.,Ikeda,Y.,Iyetomi,H.,and Souma,W.(2010).Econophysics and companies,Cambridge University Press,Cambridge,U.K. |
| 正文语种： | 英文 |
| 作者： | Nahid Mohajeri |
| 关键词： | Urban growth;Spatial configuration;Entropy analysis;Size distribution |
| 摘要： | New quantitative measures of urban structural changes are introduced and applied to the fast-growing city of Kerman, Iran. The results of 20,802 street measurements show that the main street orientations are orthogonal, both in the old inner part and in the more recent outer parts, but the streets are shorter and more irregular in shape in the inner part. The Shannon/Gibbs entropy is a measure of dispersion and is used to quantify the street-population differences within Kerman. The results show that then inner (old) part has lower orientation and length entropies (and shorter average lengths and length ranges) than any of the outer parts. Also, the length entropy gradually increases with distance from the inner part, indicating spreading of the street network with expansion of the city. The evolution of the Kerman street network from 1902 to 2006 indicates two growth processes: densification (streets added within the existing network) and expansion (streets added at the margin of the network). During densification periods, the network entropy decreased, but it increased during expansion periods. Entropy is thus a powerful tool for quantifying the evolution of city structure and for understanding and planning structural changes, particularly in fast-growing cities. |
| 出版年： | 2015 |
| 论文唯一标识： | P-84Y2015V141N03023 |
| 英文栏目名称： | Technical Papers |
| doi： | 10.1061/(ASCE)UP.1943-5444.0000213 |
| 期刊名称： | Journal of Urban Planning and Development |
| 拼音刊名(出版物代码)： | P-84 |
| 卷： | 141 |
| 期： | 03 |
| 页码： | 225-234 |
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