The emergence of urban land use patterns driven by dispersion and aggregation mechanisms.

The emergence of urban land use patterns driven by dispersion and aggregation mechanisms.
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由分散和聚集机制驱动的城市土地使用模式的出现。

DOI:
10.1371/journal.pone.0080309
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Batty M
Batty M
中科院分区:
综合性期刊3区
文献类型:
--
作者:
Decraene J;Monterola C;Lee GK;Hung TG;Batty M

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我们采用元胞自动机来重建城市的土地利用模式,我们的特点是两个空间异质性的措施:(a)空间熵的变体,它衡量的居住,商业和工业活动部门的蔓延,和(B)相异性指数,量化这些土地利用活动地块的空间混合程度。一个最低限度的和自下而上的方法,利用有限的一组三个参数,代表的力量,确定在何种程度上,这些部门在空间上聚集成集群。土地利用的分散程度取决于一个固定的预先指定的幂律分布的基础上,在其他城市的经验观察。然后,我们的方法被用来重建土地利用模式的城市国家的新加坡和北美城市的选择。我们展示了土地利用模式的出现,表现出可比的视觉功能,以实际的城市地图定义我们的案例研究,同时共享相似的空间特征。我们的工作提供了一个补充的方法来区分城市的土地利用模式,从自下而上的分散和聚集过程中产生的城市空间结构的其他措施。
We employ a cellular-automata to reconstruct the land use patterns of cities that we characterize by two measures of spatial heterogeneity: (a) a variant of spatial entropy, which measures the spread of residential, business, and industrial activity sectors, and (b) an index of dissimilarity, which quantifies the degree of spatial mixing of these land use activity parcels. A minimalist and bottom-up approach is adopted that utilizes a limited set of three parameters which represent the forces which determine the extent to which each of these sectors spatially aggregate into clusters. The dispersion degrees of the land uses are governed by a fixed pre-specified power-law distribution based on empirical observations in other cities. Our method is then used to reconstruct land use patterns for the city state of Singapore and a selection of North American cities. We demonstrate the emergence of land use patterns that exhibit comparable visual features to the actual city maps defining our case studies whilst sharing similar spatial characteristics. Our work provides a complementary approach to other measures of urban spatial structure that differentiate cities by their land use patterns resulting from bottom-up dispersion and aggregation processes.
DOI: 10.1126/science.1235823
发表时间: 2013-06-21
期刊: SCIENCE
影响因子: 56.9
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期刊: PHYSICAL REVIEW E
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