A Spatial Analysis of Gravity Flows

L. Curry
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引用次数: 77

Abstract

Curry L. (1972) A spatial analysis of gravity flows, Reg. Studies 6, 131–147. Since Wilson gave theoretical substance to the gravity model, it is possible to treat it analytically. His derivation is discussed and calibration problems examined. In particular, the general constraints on the maximum entropy solution he obtains can be particularized. Here the association between the spatial distribution of jobs and homes is investigated using a spatial regression operator which is interpreted as the impulse response function of a second order difference equation. By using Z transforms, the regression and gravity operators are applied in paralle. Feedback from the resulting trip pattern allows the job-home relation to be changed sequentially. Measures of spatial entropy and joint information are introduced and related to travel entropy.
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重力流的空间分析
郭立强(2002)重力流的空间分析[j]。研究6,131 - 147。既然威尔逊为引力模型提供了理论依据,就有可能用分析的方法来对待它。他的推导讨论和校准问题检查。特别地,他得到的最大熵解的一般约束可以具体化。在这里,工作和住房的空间分布之间的关系进行了研究,使用空间回归算子解释为二阶差分方程的脉冲响应函数。通过Z变换,将回归算子和重力算子并行应用。由此产生的行程模式的反馈允许按顺序更改工作-家庭关系。介绍了空间熵和联合信息的度量,并将其与旅行熵联系起来。
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