Gligor Liliana, Gligor Mircea
High School V. Alecsandri, Sabaoani Neamt, Romania.
Nonlinear Dynamics Psychol Life Sci. 2008 Jan;12(1):15-28.
Some of the main ideas of the fractal city theory are briefly reviewed, and their applicability is tested for the medium and small-size Romanian urban settlements. The universality of Zipf law for cities and towns distribution is proved once again and a stochastic master equation is proposed in order to explain the empirical distribution. The urban structure of Bucharest is investigated as an example of medium-size city formed by merging some independent poles of growth. The Central Places Theory is found to be in disagreement with the real urban structure. Instead, the diffusion-limited aggregation and self-organized criticality mechanisms are investigated by means of some numerical simulations and are found to fit better the urban perimeter growth.
本文简要回顾了分形城市理论的一些主要观点，并测试了其在罗马尼亚中小城市聚落中的适用性。再次证明了齐普夫定律在城镇分布中的普遍性，并提出了一个随机主方程来解释经验分布。以布加勒斯特的城市结构为例进行研究，它是由一些独立的增长极点合并而成的中等规模城市。研究发现，中心地理论与实际城市结构不一致。相反，通过一些数值模拟研究了扩散限制聚集和自组织临界机制，发现它们更适合城市周边的增长情况。
